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  • Comparison of languages by usage type? [closed]

    - by Tom
    Does anyone know of a good place to go find comparisons of programming languages by the intended platform/usage? Basically, what I want to know, is of the more popular languages, which ones are meant for high level application development, low level system development, mobile development, web, etc. If there's a good listing out there already, I'm not finding it so far. Does anyone know of a place that would have this? Thanks.

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  • The Complementary Roles of PLM and PIM

    - by Ulf Köster
    Oracle Product Value Chain Solutions (aka Enterprise PLM Solutions) are a comprehensive set of product management solutions that work together to provide Oracle customers with a broad array of capabilities to manage all aspects of product life: innovation, design, launch, and supply chain / commercialization processes beyond the capabilities and boundaries of traditional engineering-focused Product Lifecycle Management applications. They support companies with an integrated managed view across the product value chain: From Lab to Launch, From Farm to Fork, From Concept to Product to Customer, From Product Innovation to Product Design and Product Commercialization. Product Lifecycle Management (PLM) represents a broad suite of software solutions to improve product-oriented business processes and data. PLM success stories prove that PLM helps companies improve time to market, increase product-related revenue, reduce product costs, reduce internal costs and improve product quality. As a maturing suite of enterprise solutions, PLM is still evolving to realize the promise it can provide across all facets of a business and all phases of the product lifecycle. The vision for PLM includes everything from gathering early requirements for a product through multiple stages of the product lifecycle from product design, through commercialization and eventual product retirement or replacement. In discrete or process industries, PLM is typically more focused on Product Definition as items with respect to the technical view of a material or part, including specifications, bills of material and manufacturing data. With Agile PLM, this is specifically related to capabilities addressing Product Collaboration, Governance and Compliance, Product Quality Management, Product Cost Management and Engineering Collaboration. PLM today is mainly addressing key requirements in the early product lifecycle, in engineering changes or in the “innovation cycle”, and primarily adds value related to product design, development, launch and engineering change process. In short, PLM is the master for Product Definition, wherever manufacturing takes place. Product Information Management (PIM) is a product suite that has evolved in parallel to PLM. Product Information Management (PIM) can extend the value of PLM implementations by providing complementary tools and capabilities. More relevant in the area of Product Commercialization, the vision for PIM is to manage product information throughout an enterprise and supply chain to improve product-related knowledge management, information sharing and synchronization from multiple data sources. PIM success stories have shown the ability to provide multiple benefits, with particular emphasis on reducing information complexity and information management costs. Product Information in PIM is typically treated as the commercial view of a material or part, including sales and marketing information and categorization. PIM collects information from multiple manufacturing sites and multiple suppliers into its repository, but also provides integration tools to push the information back out to the other systems, serving as an active central repository with the aim to provide a holistic view on any product sold by a company (hence the name “Product Hub”). In short, PIM is the master of commercial Product Information. So PIM is quickly becoming mandatory because of its value in optimizing multichannel selling processes and relationships with customers, as you can see from the following table: Viewpoint PLM Current State PIM Key Benefits PIM adds to PLM Product Lifecycle Primarily R&D Front end Innovation Cycle Change process Primarily commercial / transactional state of lifecycle Provides a seamless information flow from design and manufacturing through the ultimate selling and servicing of products Data Primarily focused on “item” vs. “product” data Product structures Specifications Technical information Repository for all product information. Reaches out to entire enterprise and its various silos of product information and descriptions Provides a “trusted source” of accurate product information to the internal organization and trading partners Data Lifecycle Repository for all design iterations Historical information Released, current information, with version management and time stamping Provides a single location to track and audit historical product information Communication PLM release finished product to ERP PLM is the master for Product Definition Captures information from disparate sources, including in-house data stores Recognizes the reality of today’s data “mess” across information silos Provides the ability to package product information to its audience in the desired, relevant format to meet their exacting business requirements Departmental R&D Manufacturing Quality Compliance Procurement Strategic Marketing Focus on Marketing and Sales Gathering information from other Departments, multiple sites, multiple suppliers A singular enterprise solution that leverages existing information silos and data stores Supply Chain Multi-site internal collaboration Supplier collaboration Customer collaboration Works with customers, exchanges / data pools, and trading partners to provide relevant product information packaged the way the customer desires Provides ability to provide trading partners and internal customers with information in a manner they desire, continuously Tools Data Management Collaboration Innovation Management Cleansing Synchronization Hub functions Consistent, clean and complete commercial product information The goals of both PLM and PIM, put simply, are to help companies make more profit from their products. PLM and PIM solutions can be easily added as they share some of the same goals, while coming from two different perspectives: the definition of the product and the commercialization of the product. Both can serve as a form of product “system of record”, but take different approaches to delivering value. Oracle Product Value Chain solutions offer rich new strategies for executives to collectively leverage Agile PLM, Product Data Hub, together with Enterprise Data Quality for Products, and other industry leading Oracle applications to achieve further incremental value, like Oracle Innovation Management. This is unique on the market today.

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  • Variant Management– Which Approach fits for my Product?

    - by C. Chadwick
    Jürgen Kunz – Director Product Development – Oracle ORACLE Deutschland B.V. & Co. KG Introduction In a difficult economic environment, it is important for companies to understand the customer requirements in detail and to address them in their products. Customer specific products, however, usually cause increased costs. Variant management helps to find the best combination of standard components and custom components which balances customer’s product requirements and product costs. Depending on the type of product, different approaches to variant management will be applied. For example the automotive product “car” or electronic/high-tech products like a “computer”, with a pre-defined set of options to be combined in the individual configuration (so called “Assembled to Order” products), require a different approach to products in heavy machinery, which are (at least partially) engineered in a customer specific way (so-called “Engineered-to Order” products). This article discusses different approaches to variant management. Starting with the simple Bill of Material (BOM), this article presents three different approaches to variant management, which are provided by Agile PLM. Single level BOM and Variant BOM The single level BOM is the basic form of the BOM. The product structure is defined using assemblies and single parts. A particular product is thus represented by a fixed product structure. As soon as you have to manage product variants, the single level BOM is no longer sufficient. A variant BOM will be needed to manage product variants. The variant BOM is sometimes referred to as 150% BOM, since a variant BOM contains more parts and assemblies than actually needed to assemble the (final) product – just 150% of the parts You can evolve the variant BOM from the single level BOM by replacing single nodes with a placeholder node. The placeholder in this case represents the possible variants of a part or assembly. Product structure nodes, which are part of any product, are so-called “Must-Have” parts. “Optional” parts can be omitted in the final product. Additional attributes allow limiting the quantity of parts/assemblies which can be assigned at a certain position in the Variant BOM. Figure 1 shows the variant BOM of Agile PLM. Figure 1 Variant BOM in Agile PLM During the instantiation of the Variant BOM, the placeholders get replaced by specific variants of the parts and assemblies. The selection of the desired or appropriate variants is either done step by step by the user or by applying pre-defined configuration rules. As a result of the instantiation, an independent BOM will be created (Figure 2). Figure 2 Instantiated BOM in Agile PLM This kind of Variant BOM  can be used for „Assembled –To-Order“ type products as well as for „Engineered-to-Order“-type products. In case of “Assembled –To-Order” type products, typically the instantiation is done automatically with pre-defined configuration rules. For „Engineered- to-Order“-type products at least part of the product is selected manually to make use of customized parts/assemblies, that have been engineered according to the specific custom requirements. Template BOM The Template BOM is used for „Engineered-to-Order“-type products. It is another type of variant BOM. The engineer works in a flexible environment which allows him to build the most creative solutions. At the same time the engineer shall be guided to re-use existing solutions and it shall be assured that product variants of the same product family share the same base structure. The template BOM defines the basic structure of products belonging to the same product family. Let’s take a gearbox as an example. The customer specific configuration of the gearbox is influenced by several parameters (e.g. rpm range, transmitted torque), which are defined in the customer’s requirement document.  Figure 3 shows part of a Template BOM (yellow) and its relation to the product family hierarchy (blue).  Figure 3 Template BOM Every component of the Template BOM has links to the variants that have been engineeried so far for the component (depending on the level in the Template BOM, they are product variants, Assembly Variant or single part variants). This library of solutions, the so-called solution space, can be used by the engineers to build new product variants. In the best case, the engineer selects an existing solution variant, such as the gearbox shown in figure 3. When the existing variants do not fulfill the specific requirements, a new variant will be engineered. This new variant must be compliant with the given Template BOM. If we look at the gearbox in figure 3  it must consist of a transmission housing, a Connecting Plate, a set of Gears and a Planetary transmission – pre-assumed that all components are must have components. The new variant will enhance the solution space and is automatically available for re-use in future variants. The result of the instantiation of the Template BOM is a stand-alone BOM which represents the customer specific product variant. Modular BOM The concept of the modular BOM was invented in the automotive industry. Passenger cars are so-called „Assembled-to-Order“-products. The customer first selects the specific equipment of the car (so-called specifications) – for instance engine, audio equipment, rims, color. Based on this information the required parts will be determined and the customer specific car will be assembled. Certain combinations of specification are not available for the customer, because they are not feasible from technical perspective (e.g. a convertible with sun roof) or because the combination will not be offered for marketing reasons (e.g. steel rims with a sports line car). The modular BOM (yellow structure in figure 4) is defined in the context of a specific product family (in the sample it is product family „Speedstar“). It is the same modular BOM for the different types of cars of the product family (e.g. sedan, station wagon). The assembly or single parts of the car (blue nodes in figure 4) are assigned at the leaf level of the modular BOM. The assignment of assembly and parts to the modular BOM is enriched with a configuration rule (purple elements in figure 4). The configuration rule defines the conditions to use a specific assembly or single part. The configuration rule is valid in the context of a type of car (green elements in figure 4). Color specific parts are assigned to the color independent parts via additional configuration rules (grey elements in figure 4). The configuration rules use Boolean operators to connect the specifications. Additional consistency rules (constraints) may be used to define invalid combinations of specification (so-called exclusions). Furthermore consistency rules may be used to add specifications to the set of specifications. For instance it is important that a car with diesel engine always is build using the high capacity battery.  Figure 4 Modular BOM The calculation of the car configuration consists of several steps. First the consistency rules (constraints) are applied. Resulting from that specification might be added automatically. The second step will determine the assemblies and single parts for the complete structure of the modular BOM, by evaluating the configuration rules in the context of the current type of car. The evaluation of the rules for one component in the modular BOM might result in several rules being fulfilled. In this case the most specific rule (typically the longest rule) will win. Thanks to this approach, it is possible to add a specific variant to the modular BOM without the need to change any other configuration rules.  As a result the whole set of configuration rules is easy to maintain. Finally the color specific assemblies respective parts will be determined and the configuration is completed. Figure 5 Calculated Car Configuration The result of the car configuration is shown in figure 5. It shows the list of assemblies respective single parts (blue components in figure 5), which are required to build the customer specific car. Summary There are different approaches to variant management. Three different approaches have been presented in this article. At the end of the day, it is the type of the product which decides about the best approach.  For „Assembled to Order“-type products it is very likely that you can define the configuration rules and calculate the product variant automatically. Products of type „Engineered-to-Order“ ,however, need to be engineered. Nevertheless in the majority of cases, part of the product structure can be generated automatically in a similar way to „Assembled to Order“-tape products.  That said it is important first to analyze the product portfolio, in order to define the best approach to variant management.

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  • Vitality of Product Information Management Showcased at OpenWorld 2012

    - by Mala Narasimharajan
     By Sachin Patel Can you hear the countdown clock ticking!! OpenWorld 2012 is almost here and as I write this Oracle is buzzing with fresh new ideas and solutions that will be showcased this year. What an exciting time for all of us to be in midst of a digital revolution. Whether it is Apple fans clamoring to find every new feature that has been added to the iPhone 5 or a startup launching a new digital thermostat (has anyone looked at the new one from Nest ), product information is a vital for companies to grow and compete in this cut-throat market. Customer today struggle to aggregate and enrich this product data from the myriad of systems they have in place to run their businesses and operations. Having a product information strategy is paramount to align your sales channels and operations with the most accurate and upto date product data. We have a number of sessions this year at OpenWorld where you can gain more insight into how Oracle’s next generation of Fusion Applications, in this case Fusion Product Hub can provide you with a solution to streamline and get control of your Product Master Data. Enabling Trusted Enterprise Product Data with Oracle Fusion Product HubTuesday, October 2nd 11:45 am, Moscone West 2022 Join me Sachin Patel, Director of Product Strategy and Milan Bhatia, VP of Development as we discuss how you can enable trusted product master data in your enterprise. In this session we plan to cover the challenges companies face today in mastering product data. The discussion will also include how Fusion Product Hub brings new and innovative features to empower your product data owners to create a holistic and rich product definition that can be leveraged across your enterprise. We will also be joined by Pawel Fidelus from Fideltronik an Early Adopter for Fusion Product Hub who will showcase their plans to implement Fusion Product Hub and the value it will bring to Fideltronik Multichannel Fulfillment Excellence in Direct-to-Consumer Market Thursday, October 4th, 12:45 am, Moscone West 2024 Do you have multiple order capture systems? Do you have difficulty in fulfilling orders for your customers across various channels and suppliers? Mark Carson, Director, Fusion DOO and Brad Kerr, Director, AGSS will be showcasing the Fusion Distributed Order Orchestration solution and how companies can orchestrate orders from multiple order capture systems and route them to the appropriate fulfillment system. Sachin Patel, Director Product Strategy for Product MDM will highlight the business pain points in consolidating and commercializing data from a Multi Channel Commerce point of view and how Fusion Product Hub helps in allowing you to provide a single source of truth to drive a singular and rich customer experience. Oracle Fusion Supply Chain Management: Customer Adoption and Experiences                                                Wednesday, October 3rd 10:15 am, Moscone West 2003 This is a great session to attend to learn about how Fusion Supply Chain Management and Fusion Product Hub Early Adopters, including Boeing and Fideltronik are leveraging Fusion Applications to improve their Supply Chain operations. Have a great OpenWorld and see you soon!!

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  • Best Practices To Build a Product Registration System?

    - by Volomike
    What are some practices I should use in a product registration system I'm building? I likely can't stop all malicious hacking, but I'd like to slow them down a great deal. (Note, I know only PHP.) I'm talking about things like encrypting traffic, testing the encryption from hacking like a man-in-the-middle attack, etc. The other concern I have is that this needs to work on most PHP5-based web hosting environments, which may not have mcrypt installed.

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  • Store comparison in variable (or execute comparison when it's given as an string)

    - by BorrajaX
    Hello everyone. I'd like to know if the super-powerful python allows to store a comparison in a variable or, if not, if it's possible calling/executing a comparison when given as an string ("==" or "!=") I want to allow the users of my program the chance of giving a comparison in an string. For instance, let's say I have a list of... "products" and the user wants to select the products whose manufacturer is "foo". He could would input something like: Product.manufacturer == "foo" and if the user wants the products whose manufacturer is not "bar" he would input Product.manufacturer != "bar" If the user inputs that line as an string, I create a tree with an structure like: != / \ manufacturer bar I'd like to allow that comparison to run properly, but I don't know how to make it happen if != is an string. The "manufacturer" field is a property, so I can properly get it from the Product class and store it (as a property) in the leaf, and well... "bar" is just an string. I'd like to know if I can something similar to what I do with "manufacturer": storing it with a 'callable" (kind of) thing: the property with the comparator: != I have tried with "eval" and it may work, but the comparisons are going to be actually used to query a MySQL database (using sqlalchemy) and I'm a bit concerned about the security of that... Any idea will be deeply appreciated. Thank you! PS: The idea of all this is being able to generate a sqlalchemy query, so if the user inputs the string: Product.manufacturer != "foo" || Product.manufacturer != "bar" ... my tree thing can generate the following: sqlalchemy.or_(Product.manufacturer !="foo", Product.manufacturer !="bar") Since sqlalchemy.or_ is callable, I can also store it in one of the leaves... I only see a problem with the "!="

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  • C#/.NET Little Wonders: The Predicate, Comparison, and Converter Generic Delegates

    - by James Michael Hare
    Once again, in this series of posts I look at the parts of the .NET Framework that may seem trivial, but can help improve your code by making it easier to write and maintain. The index of all my past little wonders posts can be found here. In the last three weeks, we examined the Action family of delegates (and delegates in general), the Func family of delegates, and the EventHandler family of delegates and how they can be used to support generic, reusable algorithms and classes. This week I will be completing my series on the generic delegates in the .NET Framework with a discussion of three more, somewhat less used, generic delegates: Predicate<T>, Comparison<T>, and Converter<TInput, TOutput>. These are older generic delegates that were introduced in .NET 2.0, mostly for use in the Array and List<T> classes.  Though older, it’s good to have an understanding of them and their intended purpose.  In addition, you can feel free to use them yourself, though obviously you can also use the equivalents from the Func family of delegates instead. Predicate<T> – delegate for determining matches The Predicate<T> delegate was a very early delegate developed in the .NET 2.0 Framework to determine if an item was a match for some condition in a List<T> or T[].  The methods that tend to use the Predicate<T> include: Find(), FindAll(), FindLast() Uses the Predicate<T> delegate to finds items, in a list/array of type T, that matches the given predicate. FindIndex(), FindLastIndex() Uses the Predicate<T> delegate to find the index of an item, of in a list/array of type T, that matches the given predicate. The signature of the Predicate<T> delegate (ignoring variance for the moment) is: 1: public delegate bool Predicate<T>(T obj); So, this is a delegate type that supports any method taking an item of type T and returning bool.  In addition, there is a semantic understanding that this predicate is supposed to be examining the item supplied to see if it matches a given criteria. 1: // finds first even number (2) 2: var firstEven = Array.Find(numbers, n => (n % 2) == 0); 3:  4: // finds all odd numbers (1, 3, 5, 7, 9) 5: var allEvens = Array.FindAll(numbers, n => (n % 2) == 1); 6:  7: // find index of first multiple of 5 (4) 8: var firstFiveMultiplePos = Array.FindIndex(numbers, n => (n % 5) == 0); This delegate has typically been succeeded in LINQ by the more general Func family, so that Predicate<T> and Func<T, bool> are logically identical.  Strictly speaking, though, they are different types, so a delegate reference of type Predicate<T> cannot be directly assigned to a delegate reference of type Func<T, bool>, though the same method can be assigned to both. 1: // SUCCESS: the same lambda can be assigned to either 2: Predicate<DateTime> isSameDayPred = dt => dt.Date == DateTime.Today; 3: Func<DateTime, bool> isSameDayFunc = dt => dt.Date == DateTime.Today; 4:  5: // ERROR: once they are assigned to a delegate type, they are strongly 6: // typed and cannot be directly assigned to other delegate types. 7: isSameDayPred = isSameDayFunc; When you assign a method to a delegate, all that is required is that the signature matches.  This is why the same method can be assigned to either delegate type since their signatures are the same.  However, once the method has been assigned to a delegate type, it is now a strongly-typed reference to that delegate type, and it cannot be assigned to a different delegate type (beyond the bounds of variance depending on Framework version, of course). Comparison<T> – delegate for determining order Just as the Predicate<T> generic delegate was birthed to give Array and List<T> the ability to perform type-safe matching, the Comparison<T> was birthed to give them the ability to perform type-safe ordering. The Comparison<T> is used in Array and List<T> for: Sort() A form of the Sort() method that takes a comparison delegate; this is an alternate way to custom sort a list/array from having to define custom IComparer<T> classes. The signature for the Comparison<T> delegate looks like (without variance): 1: public delegate int Comparison<T>(T lhs, T rhs); The goal of this delegate is to compare the left-hand-side to the right-hand-side and return a negative number if the lhs < rhs, zero if they are equal, and a positive number if the lhs > rhs.  Generally speaking, null is considered to be the smallest value of any reference type, so null should always be less than non-null, and two null values should be considered equal. In most sort/ordering methods, you must specify an IComparer<T> if you want to do custom sorting/ordering.  The Array and List<T> types, however, also allow for an alternative Comparison<T> delegate to be used instead, essentially, this lets you perform the custom sort without having to have the custom IComparer<T> class defined. It should be noted, however, that the LINQ OrderBy(), and ThenBy() family of methods do not support the Comparison<T> delegate (though one could easily add their own extension methods to create one, or create an IComparer() factory class that generates one from a Comparison<T>). So, given this delegate, we could use it to perform easy sorts on an Array or List<T> based on custom fields.  Say for example we have a data class called Employee with some basic employee information: 1: public sealed class Employee 2: { 3: public string Name { get; set; } 4: public int Id { get; set; } 5: public double Salary { get; set; } 6: } And say we had a List<Employee> that contained data, such as: 1: var employees = new List<Employee> 2: { 3: new Employee { Name = "John Smith", Id = 2, Salary = 37000.0 }, 4: new Employee { Name = "Jane Doe", Id = 1, Salary = 57000.0 }, 5: new Employee { Name = "John Doe", Id = 5, Salary = 60000.0 }, 6: new Employee { Name = "Jane Smith", Id = 3, Salary = 59000.0 } 7: }; Now, using the Comparison<T> delegate form of Sort() on the List<Employee>, we can sort our list many ways: 1: // sort based on employee ID 2: employees.Sort((lhs, rhs) => Comparer<int>.Default.Compare(lhs.Id, rhs.Id)); 3:  4: // sort based on employee name 5: employees.Sort((lhs, rhs) => string.Compare(lhs.Name, rhs.Name)); 6:  7: // sort based on salary, descending (note switched lhs/rhs order for descending) 8: employees.Sort((lhs, rhs) => Comparer<double>.Default.Compare(rhs.Salary, lhs.Salary)); So again, you could use this older delegate, which has a lot of logical meaning to it’s name, or use a generic delegate such as Func<T, T, int> to implement the same sort of behavior.  All this said, one of the reasons, in my opinion, that Comparison<T> isn’t used too often is that it tends to need complex lambdas, and the LINQ ability to order based on projections is much easier to use, though the Array and List<T> sorts tend to be more efficient if you want to perform in-place ordering. Converter<TInput, TOutput> – delegate to convert elements The Converter<TInput, TOutput> delegate is used by the Array and List<T> delegate to specify how to convert elements from an array/list of one type (TInput) to another type (TOutput).  It is used in an array/list for: ConvertAll() Converts all elements from a List<TInput> / TInput[] to a new List<TOutput> / TOutput[]. The delegate signature for Converter<TInput, TOutput> is very straightforward (ignoring variance): 1: public delegate TOutput Converter<TInput, TOutput>(TInput input); So, this delegate’s job is to taken an input item (of type TInput) and convert it to a return result (of type TOutput).  Again, this is logically equivalent to a newer Func delegate with a signature of Func<TInput, TOutput>.  In fact, the latter is how the LINQ conversion methods are defined. So, we could use the ConvertAll() syntax to convert a List<T> or T[] to different types, such as: 1: // get a list of just employee IDs 2: var empIds = employees.ConvertAll(emp => emp.Id); 3:  4: // get a list of all emp salaries, as int instead of double: 5: var empSalaries = employees.ConvertAll(emp => (int)emp.Salary); Note that the expressions above are logically equivalent to using LINQ’s Select() method, which gives you a lot more power: 1: // get a list of just employee IDs 2: var empIds = employees.Select(emp => emp.Id).ToList(); 3:  4: // get a list of all emp salaries, as int instead of double: 5: var empSalaries = employees.Select(emp => (int)emp.Salary).ToList(); The only difference with using LINQ is that many of the methods (including Select()) are deferred execution, which means that often times they will not perform the conversion for an item until it is requested.  This has both pros and cons in that you gain the benefit of not performing work until it is actually needed, but on the flip side if you want the results now, there is overhead in the behind-the-scenes work that support deferred execution (it’s supported by the yield return / yield break keywords in C# which define iterators that maintain current state information). In general, the new LINQ syntax is preferred, but the older Array and List<T> ConvertAll() methods are still around, as is the Converter<TInput, TOutput> delegate. Sidebar: Variance support update in .NET 4.0 Just like our descriptions of Func and Action, these three early generic delegates also support more variance in assignment as of .NET 4.0.  Their new signatures are: 1: // comparison is contravariant on type being compared 2: public delegate int Comparison<in T>(T lhs, T rhs); 3:  4: // converter is contravariant on input and covariant on output 5: public delegate TOutput Contravariant<in TInput, out TOutput>(TInput input); 6:  7: // predicate is contravariant on input 8: public delegate bool Predicate<in T>(T obj); Thus these delegates can now be assigned to delegates allowing for contravariance (going to a more derived type) or covariance (going to a less derived type) based on whether the parameters are input or output, respectively. Summary Today, we wrapped up our generic delegates discussion by looking at three lesser-used delegates: Predicate<T>, Comparison<T>, and Converter<TInput, TOutput>.  All three of these tend to be replaced by their more generic Func equivalents in LINQ, but that doesn’t mean you shouldn’t understand what they do or can’t use them for your own code, as they do contain semantic meanings in their names that sometimes get lost in the more generic Func name.   Tweet Technorati Tags: C#,CSharp,.NET,Little Wonders,delegates,generics,Predicate,Converter,Comparison

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  • eReaderLookup Catalogs and Compares Over 100 eBook Readers

    - by Jason Fitzpatrick
    Although the Kindle and Nook get the most press time, there’s a world of ebook readers out there; eReaderLookup helps you search by price, size, screen type, storage, and other parameters to find the perfect ebook reader for your needs. Whether you’re trying to find a reader with an SD card slot, a large screen, or native support for an less-than-popular file format, you can plug it into eReaderLookup and see if a reader exists that fits your needs. If there is more than one reader that matches your search parameters you can easily compare them in a side-by-side setup to quickly compare the stats. Hit up the link below to take it for a spin. eReaderLookup [via MakeUseOf] How to Stress Test the Hard Drives in Your PC or Server How To Customize Your Android Lock Screen with WidgetLocker The Best Free Portable Apps for Your Flash Drive Toolkit

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  • bash and arithmetic comparison: double quotes or not?

    - by Martin
    when comparing two integers in bash, do we have to put double quotes ? In the official document http://tldp.org/LDP/abs/html/comparison-ops.html I can read that double quotes should appear every time... But what is the differences in the following examples: [ "$VAR" -eq "1" ] [ $VAR -eq "1" ] [ "$VAR" -eq 1 ] [ $VAR -eq 1 ] As I am curious, a took a look at Ubuntu init scripts in /etc/init.d and there are many usage of arithmetic comparison in it, at least [ "$VAR" -eq "1" ] and [ $VAR -eq 1 ] are used... but it seems no one really "knows" what is the official way to do it. Thanks !

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  • Comparison between these video cards?

    - by seedeg
    Currently I have a GeForce 8600GT as a video card. I started playing EVE online and it is not that smooth (Apart from the fact that my Windows 7 is starting to become slow so it needs a format). Now I have these 3 video cards on my mind: 1GB Gainward GF GT240 PCI-Express Video Card 1GB Gainward GF9800GT PCI-Express Video Card 1GB Gainward GF GT240-GS PCI-Express Video Card I tried comparing them from nvidia's site: HelpMeChoose but the GT240-GS is not available for comparison. However, when I tried comparing the GT240 with the 9800GT, the latter was the winner. You must keep in consideration that the cheapest one is the GT2400. The 9800GT is in the middle, and the one which is not available for comparison, the GT240-GS is the most expensive one (about 6 euros more than the 9800GT). Is the GT240-GS the best video card from these? Thanks in advance for your responses.

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  • Free WinMerge alternative with more clear line comparison

    - by sergdev
    I use WinMerge to compare text files, usually alogn with TortoiseSVN. It is pretty good. The only thing which is inconvenient for me is very rough line comparison. For instance, if I have two long lines without spaces and the only symbol is different in two string, WinMerge colors these two lines in the same color. I want the similar tool as WinMerge (free, under Windows), but with more fine grain line comparison. Does exist something like this? Thanks.

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  • .htaccess file size causes 500 Internal Server Error

    - by moobot
    As soon as my .htaccess goes over approx 8410 bytes, I get a 500 Internal Server Error. I don't think this is due to a bad redirect, as I have experimented with redirects in the .htaccess and then with just text that is commented out #. (no actual commands in the .htaccess file) Is there anything obvious that can cause this? Update: The site is on WordPress. Here are the redirects I was originally trying to add: RewriteEngine On ## 301 Redirects of old URLs to new # 301 Redirect 1 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^accesseries/underlay/prod_37\.html$ /product-category/accessories/underlays? [R=301,NE,NC,L] # 301 Redirect 2 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^accessories/acoustic-underlay/prod_29\.html$ /product/acoustic-underlay/? [R=301,NE,NC,L] # 301 Redirect 3 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^accessories/cat_4\.html$ /product-category/accessories/? [R=301,NE,NC,L] # 301 Redirect 4 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-flooring/accessories/cat_8\.html$ /product-category/accessories/? [R=301,NE,NC,L] # 301 Redirect 5 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-flooring/bamboo-floor/natural-strandwoven-bamboo-semi-gloss-wide-board-135mm-click/prod_151\.html$ /product/natural-strand-woven-bamboo-semi-gloss-wide-board-135mm-click/? [R=301,NE,NC,L] # 301 Redirect 6 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-flooring/bamboo-floor/strandwoven-chocolate-135mm-bamboo-flooring/prod_174\.html$ /product/strand-woven-chocolate-135mm-bamboo-flooring/? [R=301,NE,NC,L] # 301 Redirect 7 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-flooring/bamboo-floor/strand-woven-kempas-bamboo-flooring/prod_173\.html$ /product/strand-woven-kempas-bamboo-flooring/? [R=301,NE,NC,L] # 301 Redirect 8 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-flooring/bamboo-floor/strandwoven-walnut-wired-135mm-bamboo-flooring/prod_176\.html$ /product/strand-woven-walnut-wired-135mm-bamboo-flooring/? [R=301,NE,NC,L] # 301 Redirect 9 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-flooring/cat_7\.html$ /product-category/bamboo-floor/? [R=301,NE,NC,L] # 301 Redirect 10 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-bamboo-installation/info_8\.html$ /bamboo-installation/? [R=301,NE,NC,L] # 301 Redirect 11 RewriteCond %{QUERY_STRING} ^act=cart$ [NC] RewriteRule ^cart\.php$ /cart/? [R=301,NE,NC,L] # 301 Redirect 12 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^contact-us/info_2\.html$ /contact-us/? [R=301,NE,NC,L] # 301 Redirect 13 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^faqs/info_9\.html$ /faqs/? [R=301,NE,NC,L] # 301 Redirect 14 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-floating-timber-floor/black-butt-engineered-floating-timber/prod_213\.html$ /product/black-butt-engineered-floating-timber/? [R=301,NE,NC,L] # 301 Redirect 15 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-floating-timber-floor/doussie-engineered-floating-timber/prod_208\.html$ /product/doussie-engineered-floating-timber/? [R=301,NE,NC,L] # 301 Redirect 16 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-floating-timber-floor/smoked-oak-engineered-floating-timber/prod_217\.html$ /product/smoked-oak-engineered-floating-timber/? [R=301,NE,NC,L] # 301 Redirect 17 RewriteCond %{QUERY_STRING} ^act=thanks$ [NC] RewriteRule ^index\.php$ http://www.xxxxxxxxxx.com/? [R=301,NE,NC,L] # 301 Redirect 18 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=13$ [NC] RewriteRule ^index\.php$ /product-category/samples/bamboo-flooring-samples/? [R=301,NE,NC,L] # 301 Redirect 19 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=18$ [NC] RewriteRule ^index\.php$ /product/bamboo-plastic-composite/? [R=301,NE,NC,L] # 301 Redirect 20 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=2$ [NC] RewriteRule ^index\.php$ /product-category/bamboo-floor/? [R=301,NE,NC,L] # 301 Redirect 21 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=20$ [NC] RewriteRule ^index\.php$ /products/? [R=301,NE,NC,L] # 301 Redirect 22 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=3$ [NC] RewriteRule ^index\.php$ /product-category/floating-timber-floor/? [R=301,NE,NC,L] # 301 Redirect 23 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=5$ [NC] RewriteRule ^index\.php$ /product-category/laminate-flooring/? [R=301,NE,NC,L] # 301 Redirect 24 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=6$ [NC] RewriteRule ^index\.php$ /product-category/accessories/? [R=301,NE,NC,L] # 301 Redirect 25 RewriteCond %{QUERY_STRING} ^act=viewCat&catId=saleItems$ [NC] RewriteRule ^index\.php$ /product-category/clearance-sale/? [R=301,NE,NC,L] # 301 Redirect 26 RewriteCond %{QUERY_STRING} ^act=viewDoc&docId=3$ [NC] RewriteRule ^index\.php$ /faqs/? [R=301,NE,NC,L] # 301 Redirect 27 RewriteCond %{QUERY_STRING} ^act=viewDoc&docId=4$ [NC] RewriteRule ^index\.php$ /faqs/? [R=301,NE,NC,L] # 301 Redirect 28 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=137$ [NC] RewriteRule ^index\.php$ /product/laminate-flooring-goustein-wood/? [R=301,NE,NC,L] # 301 Redirect 29 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=164$ [NC] RewriteRule ^index\.php$ /product/modern-black-brushed-finish-strand-woven-flooring/? [R=301,NE,NC,L] # 301 Redirect 30 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=165$ [NC] RewriteRule ^index\.php$ /product/lime-wash-strand-woven-bamboo-flooring/? [R=301,NE,NC,L] # 301 Redirect 31 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=168$ [NC] RewriteRule ^index\.php$ /product/country-bark/? [R=301,NE,NC,L] # 301 Redirect 32 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=173$ [NC] RewriteRule ^index\.php$ /product-category/bamboo-floor/14mm-bamboo-flooring/? [R=301,NE,NC,L] # 301 Redirect 33 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=178$ [NC] RewriteRule ^index\.php$ /product/blue-gum-136-floating-timber/? [R=301,NE,NC,L] # 301 Redirect 34 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=199$ [NC] RewriteRule ^index\.php$ /product/jarrah-laminate-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 35 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=205$ [NC] RewriteRule ^index\.php$ /product/elm-12mm-laminate-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 36 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=209$ [NC] RewriteRule ^index\.php$ /product/iroko-engineered-floating-timber/? [R=301,NE,NC,L] # 301 Redirect 37 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=222$ [NC] RewriteRule ^index\.php$ /product/european-oak-engineered-floating-timber-sample/? [R=301,NE,NC,L] # 301 Redirect 38 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=236$ [NC] RewriteRule ^index\.php$ /product/black-forest-5mm-vinyl-flooring/? [R=301,NE,NC,L] # 301 Redirect 39 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=65$ [NC] RewriteRule ^index\.php$ /product/stair-nose/? [R=301,NE,NC,L] # 301 Redirect 40 RewriteCond %{QUERY_STRING} ^act=viewProd&productId=83$ [NC] RewriteRule ^index\.php$ /product/laminate-flooring-warm-teak/? [R=301,NE,NC,L] # 301 Redirect 41 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-flooring/12mm-laminate-flooring/blackbutt/prod_156\.html$ /product/blackbutt-12mm-laminate-floor/? [R=301,NE,NC,L] # 301 Redirect 42 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-flooring/12mm-laminate-flooring/tasmanian-oak/prod_171\.html$ /product/tasmanian-oak/? [R=301,NE,NC,L] # 301 Redirect 43 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-flooring/8-3mm-laminate-flooring/laminate-flooring-warm-teak/prod_8\.html$ /product/laminate-flooring-warm-teak/? [R=301,NE,NC,L] # 301 Redirect 44 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-flooring/accessories/cat_6\.html$ /product-category/accessories/? [R=301,NE,NC,L] # 301 Redirect 45 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-flooring/cat_5\.html$ /product-category/laminate-flooring/? [R=301,NE,NC,L] # 301 Redirect 46 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-flooring/country-classic-12mm-laminate/cat_19\.html$ /product-category/laminate-flooring/12mm-country-classic-laminate-floor/? [R=301,NE,NC,L] # 301 Redirect 47 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-laminate-installation/info_7\.html$ /laminate-installation/? [R=301,NE,NC,L] # 301 Redirect 48 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^privacy-policy/info_4\.html$ /faqs/? [R=301,NE,NC,L] # 301 Redirect 49 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^-quotation-request/info_5\.html$ /quotation-request/? [R=301,NE,NC,L] # 301 Redirect 50 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^rainbow-flooring/cat_16\.html$ /product-category/rainbow-flooring/? [R=301,NE,NC,L] # 301 Redirect 51 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^rainbow-flooring/walnut-rainbow-flooring/prod_112\.html$ /product/walnut-rainbow-flooring/? [R=301,NE,NC,L] # 301 Redirect 52 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/12mm-laminate-floor-samples/kempas-laminate-floor-sample/prod_195\.html$ /product/kempas-laminate-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 53 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/12mm-laminate-floor-samples/spotted-gum-laminate-floor-sample/prod_196\.html$ /product/spotted-gum-laminate-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 54 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/12mm-laminate-floor-samples/tasmanian-oak-laminate-floor-sample/prod_197\.html$ /product/tasmanian-oak-laminate-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 55 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/bamboo-flooring-samples/cat_13\.html$ /product-category/samples/bamboo-flooring-samples/? [R=301,NE,NC,L] # 301 Redirect 56 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/bamboo-flooring-samples/rosewood-strandwoven-bamboo-floor-135mm-click-sample/prod_191\.html$ /product/rosewood-strand-woven-bamboo-floor-135mm-click-sample/? [R=301,NE,NC,L] # 301 Redirect 57 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/cat_9\.html$ /samples/? [R=301,NE,NC,L] # 301 Redirect 58 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/floating-timber-floor-samples/iroko-engineered-floating-timber-floor-sample/prod_223\.html$ /product/iroko-engineered-floating-timber-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 59 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/floating-timber-floor-samples/jarrah-engineered-floating-timber-sample/prod_224\.html$ /product/jarrah-engineered-floating-timber-sample/? [R=301,NE,NC,L] # 301 Redirect 60 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/floating-timber-floor-samples/merbau-engineered-floating-timber-sample/prod_226\.html$ /product/merbau-engineered-floating-timber-sample/? [R=301,NE,NC,L] # 301 Redirect 61 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/floating-timber-floor-samples/spotted-gum-engineered-floating-timber-sample/prod_228\.html$ /product/spotted-gum-engineered-floating-timber-sample/? [R=301,NE,NC,L] # 301 Redirect 62 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^samples/floating-timber-floor-samples/sydney-blue-gum-engineered-floating-timber-sample/prod_220\.html$ /product/sydney-blue-gum-engineered-floating-timber-sample/? [R=301,NE,NC,L] # 301 Redirect 63 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^shop\.php/-laminate-flooring/accessories/laminate-flooring-accessories-click-stairnose/prod_251\.html$ /product/stair-nose/? [R=301,NE,NC,L] # 301 Redirect 64 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^shop\.php/-laminate-flooring/country-classic-12mm-laminate/country-classic-polar-white/prod_243\.html$ /product/country-classic-polar-white/? [R=301,NE,NC,L] # 301 Redirect 65 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^shop\.php/samples/12mm-laminate-floor-samples/country-classic-polar-white/prod_244\.html$ /product/country-classic-polar-white-sample/? [R=301,NE,NC,L] # 301 Redirect 66 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^shop\.php/samples/12mm-laminate-floor-samples/rustic-oak-12mm-laminate-floor/prod_248\.html$ /product/rustic-oak-12mm-laminate-floor-sample/? [R=301,NE,NC,L] # 301 Redirect 67 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^shop\.php/samples/vinyl-flooring-samples/cat_25\.html$ /product-category/samples/vinyl-flooring-samples/? [R=301,NE,NC,L] # 301 Redirect 68 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^shop\.php/vinyl-flooring/cat_24\.html$ /product-category/vinyl-floor/? [R=301,NE,NC,L] # 301 Redirect 69 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^solardeck-tiles/cat_22\.html$ /product-category/solardeck-tiles/? [R=301,NE,NC,L] # 301 Redirect 70 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^solardeck-tiles/solardeck-tiles/prod_206\.html$ /product/solardeck-tiles/? [R=301,NE,NC,L] # 301 Redirect 71 RewriteCond %{QUERY_STRING} ^$ RewriteRule ^terms-conditions/info_3\.html$ /faqs/? [R=301,NE,NC,L] I'm getting errors like this in my log: Invalid command 'aminate-flooring/tasmanian-oak/prod_171\\.html$', perhaps misspelled or defined by a module not included in the server configuration, referer: http://www.xxxxxxxx.com/laminate-installation/ Invalid command ',NE,NC,L]', perhaps misspelled or defined by a module not included in the server configuration Invalid command ',L]#', perhaps misspelled or defined by a module not included in the server configuration

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  • Windows product key is valid but wont activate

    - by pnongrata
    Last month, I needed to install Windows XP (Pro Version 2002 SP3) from a Reinstallation CD a co-worker gave me, and with a product key the IT team told me to use. Everything installed successfully and I have been using the XP machine for the last 30 days without any problems; however it kept reminding me to activate Windows, and of course, I never did (laziness). It now has me locked out of my machine and won't let me log in until I activate it. So I proceed to the Activation Screen which asks me: Do you want to activate Windows now? I choose "Yes, let's activate Windows over the Internet now.", and click the Next button. It now asks me: Do you want to register while you are activating Windows? I choose "No, I don't want to register now; let's just activate Windows.", and click the Next button. I now see the following screen: Notice how the title reads "Unauthorized product key", and how there are only 3 buttons: Telephone Remind me later Retry Please note that the Retry button is disabled until I enter the full product key that IT gave me, then it enables. However, at no point in time do I see a Next button, indicating that the product key was valid/successful. So instead, I just click the Retry button, and the screen refreshes, this time with a different title Incorrect product key Could something be wrong with the Windows XP reinstallation CD (do they "expire" after a certain amount of time, etc.)? Or is this the normal/typical workflow for what happens when you just have a bad product key? I ask because, after this happened I emailed IT and they supplied me whether several other product keys to try. But every time its the same result, same thing happening over again and again. So I guess it's possible that IT has given me several bad keys, but it's more likely something else is going on here. Any thoughts or ways to troubleshoot? Thanks in advance!

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  • Linux distributions comparison

    - by Daniel Cukier
    Does any good comparison exist (like a table of present features) between the many Linux distributions? What are the features and advantages on each distribution? (Ubuntu, Fedora, CentOS, etc.) What choice is better for what kind of user profile?

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  • Canonicalization of single, small pages like reviews or product categories [SEO]

    - by Valorized
    In general I pretty much like the idea of canonicalization. And in most cases, Google explains possible procedures in a clear way. For example: If I have duplicates because of parameters (eg: &sort=desc) it's clear to use the canonical for the site, provided the within the head-tag. However I'm wondering how to handle "small - no to say thin content - sites". What's my definition of a small site? An Example: On one of my main sites, we use a directory based url-structure. Let's see: example.com/ (root) example.com/category-abc/ example.com/category-abc/produkt-xy/ Moreover we provide on page, that includes all products example.com/all-categories/ (lists all products the same way as in the categories) In case of reviews, we use a similar structure: example.com/reviews/product-xy/ shows all review for one certain product example.com/reviews/product-xy/abc-your-product-is-great/ shows one certain review example.com/reviews/ shows all reviews for all products (latest first) Let's make it even more complicated: On every product site, there are the latest 2 reviews at the end of the page. So you see, a lot of potential duplicates. Q1: Should I create canonicals for a: example.com/category-abc/ to example.com/all-categories/ b: example.com/reviews/product-xy/abc-your-product-is-great/ to example.com/reviews/product-xy/ or to example.com/review/ or none of them? Q2: Can I link the collection of categories (all-categories/) and collection of all reviews (reviews/ and reviews/product-xy/) to the single category respectively to the single review. Example: example.com/reviews/ includes - let's say - 100 reviews. Can I somehow use a markup that tells search engines: "Hey, wait, you are now looking at a collection of 100 reviews - do not index this collection, you should rather prefer indexing every single review as a single page!". In HTML it might be something like that (which - of course - does not work, it's only to show you what I mean): <div class="review" rel="canonical" href="http://example.com/reviews/product-xz/abc-your-product-is-great/">HERE GOES THE REVIEW</div> Reason: I don't think it is a great user experience if the user searches for "your product is great" and lands on example.com/reviews/ instead of example.com/reviews/product-xy/abc-your-product-is-great/. On the first site, he will have to search and might stop because of frustration. The second result, however, might lead to a conversion. The same applies for categories. If the user is searching for category-Z, he might land on the all-categories page and he has to scroll down to the (last) category, to find what he searched for (Z). So what's best practice? What should I do? Thank you for your help!

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  • Canonicalization of single, small pages like reviews or product categories

    - by Valorized
    In general I pretty much like the idea of canonicalization. And in most cases, Google explains possible procedures in a clear way. For example: If I have duplicates because of parameters (eg: &sort=desc) it's clear to use the canonical for the site, provided the within the head-tag. However I'm wondering how to handle "small - no to say thin content - sites". What's my definition of a small site? An Example: On one of my main sites, we use a directory based url-structure. Let's see: example.com/ (root) example.com/category-abc/ example.com/category-abc/produkt-xy/ Moreover we provide on page, that includes all products example.com/all-categories/ (lists all products the same way as in the categories) In case of reviews, we use a similar structure: example.com/reviews/product-xy/ shows all review for one certain product example.com/reviews/product-xy/abc-your-product-is-great/ shows one certain review example.com/reviews/ shows all reviews for all products (latest first) Let's make it even more complicated: On every product site, there are the latest 2 reviews at the end of the page. So you see, a lot of potential duplicates. Q1: Should I create canonicals for a: example.com/category-abc/ to example.com/all-categories/ b: example.com/reviews/product-xy/abc-your-product-is-great/ to example.com/reviews/product-xy/ or to example.com/review/ or none of them? Q2: Can I link the collection of categories (all-categories/) and collection of all reviews (reviews/ and reviews/product-xy/) to the single category respectively to the single review. Example: example.com/reviews/ includes - let's say - 100 reviews. Can I somehow use a markup that tells search engines: "Hey, wait, you are now looking at a collection of 100 reviews - do not index this collection, you should rather prefer indexing every single review as a single page!". In HTML it might be something like that (which - of course - does not work, it's only to show you what I mean): <div class="review" rel="canonical" href="http://example.com/reviews/product-xz/abc-your-product-is-great/"> HERE GOES THE REVIEW</div> Reason: I don't think it is a great user experience if the user searches for "your product is great" and lands on example.com/reviews/ instead of example.com/reviews/product-xy/abc-your-product-is-great/. On the first site, he will have to search and might stop because of frustration. The second result, however, might lead to a conversion. The same applies for categories. If the user is searching for category-Z, he might land on the all-categories page and he has to scroll down to the (last) category, to find what he searched for (Z). So what's best practice? What should I do?

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  • Best practice while marking a bug as resolved with Bugzilla (versioning of product and components)

    - by Vincent B.
    I am wondering what is the best way to handle the situation of marking a bug as resolved and providing a version of component/product in which this fix can be found. Context For a project I am working on, we are using Bugzilla for issue tracking, and we have the following: A product "A" with a version number like vA.B.C.D, This product "A" have the following components: Component "C1" with a version number like vA.B.C.D, Component "C2" with a version number like vA.B.C.D, Component "C3" with a version number like vA.B.C.D. Internally we keep track of which component versions have been used to generate the product A version vA.B.C.D. Example: Product "A" version v1.0.0.0 has been produced from component "C1" v1.0.0.3, component "C2" v1.3.0.0 and component "C3" v2.1.3.5. And Product "A" version v1.0.1.0 has been produced from component "C1" v1.0.0.4, component "C2" v1.3.0.0 and component "C3" v2.1.3.5. Each component is a SVN repository. The person in charge of generating the product "A" have only access to the different components tags folder in SVN, and not the trunk of each component repository. Problem Now the problem is the following, when a bug is found in the product "A", and that the bug is related to Component "C1", the version of product "A" is chosen (e.g. v1.0.0.0), and this version allow the developer to know which version of component "C1" has the bug (here it will be v1.0.0.3). A bug report is created. Now let's say that the developer responsible for component "C1" corrects the bug, then when the bug seems to be fixed and after some test and validation, the developer generates a new tag for component "C1", with the version v1.0.0.4. At this time, the developer of component "C1" needs to update the bug report, but what is the best to do: Mark the bug as resolved/fixed and add a comment saying "This bug has been fixed in the tags v1.0.0.4 of C1 component" ? Keep the bug as assigned, add a comment saying "This bug has been fixed in the tags v1.0.0.4 of C1 component, update this bug status to resolved for the next version of the product that will be generated with the newest version (v1.0.0.4 of C1)" ? Another possible way to deal with this problem. Right now the problem is that when a product component CX is fixed, it is not sure in which future version of the product A it will be included, so it is for me not possible to say in which version of the product it will be solved, but it is possible to say in which version of the Component CX it has been solved. So when do we need to mark a bug as solved, when the product A version include the fixed version of CX, or only when CX component has been fixed ? Thanks for your personal feedback and ideas about this !

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  • Oracle Product Hub: Customer Perspectives at the OpenWorld

    - by Mala Narasimharajan
     By Rohit Tandon The Oracle Product Hub (OPH) Product Strategy team will be hosting a customer session dedicated to OPH at Oracle Openworld. Oracle Product Information Management strategy team will have the pleasure to present this session with Motorola Mobility Solutions.  . In this session, you will hear how Motorola Solutions utilizes OPH to meet their IT and business needs. Arif Girniwala, (MDM Lead, Motorola) and Chirag Jariwala (Manager, Deloitte Consulting) will cover the following topics amongst others: How does Motorola Solutions decide on what is Product Master Data for their enterprise? What are the Data Governance structures, Users, User roles, User Security etc. within Motorola Solutions?  How does Motorola Solutions integrate, synchronize and leverage OPH with Agile PLM?       4.  What is the Oracle Product Hub strategy and roadmap (Speaker - Sachin Patel, Director Oracle Product Hub Strategy)       5.  What are the implementation best practices for Oracle Product Hub (Speaker - Srikant Bevara, Sr. Manager, Oracle   Product Hub product management) If you're interested in hearing more about the above then I recommend attending this session: Customer Perspectives: Master Product Data: Strategies for Effective Product Information Management with Motorola Mobility Solutions (CON8834) Tuesday October, 2nd 10:15am - 11:15am Moscone West - 3001 We hope to see you at OOW 2012 and stay in touch via our future blogs!  For a list of all Oracle MDM sessions click here. 

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  • nVelocity - Template issue when attempting 'greater than' comparison on decimal property

    - by Bart
    I have a simple object that has as one of it's properties a decimal named Amount. When I attempt a comparison on this property as part of an nVelocity template, the comparison always fails. If I change the property to be of type int the comparison works fine. Is there anything extra I need to add to the template for the comparison to work? Below is a sample from the aforementioned template: #foreach( $bet in $bets ) <li> $bet.Date $bet.Race #if($bet.Amount > 10) <strong>$bet.Amount.ToString("c")</strong> #else $bet.Amount.ToString("c") #end </li> #end Below is the Bet class: public class Bet { public Bet(decimal amount, string race, DateTime date) { Amount = amount; Race = race; Date = date; } public decimal Amount { get; set; } public string Race { get; set; } public DateTime Date { get; set; } } Any help would be greatly appreciated.

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  • product suggestion based on user data

    - by Enkay
    I'm trying to add suggestions to product pages along the lines of : "Customers who purchased this item also purchased x and y". The way the data is compiled right now is a mysql table with 3 rows. PRODUCT | CUSTOMER |QUANTITY Product is the product ID. Customer is the customer ID. Quantity is the number of time that product was bought by that customer. For each product description page, the system needs to figure out which users bought that product, what other products those users bought, in what quantity and then return the 2 products that were bought the most by people who bought the current product. Hopefully this makes sense and someone can point me in the right directions as to what the mysql query should look like. Thanks.

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  • How to recover Windows Vista product key?

    - by empi
    Two years ago I've bought asus laptop with Windows Vista preinstalled. I also received recovery dvd with it. Now, I want to reinstall Windows and fully format the hard drive. However, the sticker with Windows product key under the laptop is unreadable. I tried recovering the key with ProduKey and similar software but they show another product key - it is different than the one from the sticker (I checked on another asus laptop and on my dell laptop). Do you know if I it is possible to reinstall the operating system with the product key obtained from ProduKey? If not, how can I retrieve the product key? It seems stupid that it was only placed on the sticker that is destroyed after some time if you frequently hold the laptop on your lap. I've tried ProduKey and Recover Keys and they show the same key. However, it's not the one from the sticker. Thanks in advance for help.

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  • Source code comparison app that doesn't require files?

    - by ZenBlender
    I'm looking for an easy-to-use, free source code comparison app for Windows, which will highlight differences side-by-side between two pieces of source code. Some apps get close to what I want, but are too restrictive by requiring you load in entire files and compare them in their entirety. Sometimes I just want to compare a section of my file, such as a single function, which may be in totally different locations in the two versions I'd be comparing, making it hard to find in both panes in large files. Basically, I'd like to be able to simply edit/copy/paste the content in both panes rather than have the restriction of using files. That way I can copy and paste one function into one pane and another into the other, editing/re-ordering as necessary. (Note that I realize there are other comparison app recommendation threads out there, but I'm having a hard time finding a free app that isn't a strict file-to-file comparison app) Thanks for any pointers or links, thanks!

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  • How to do the transition from project manager to product manager? [on hold]

    - by E. Topp
    I'm working as project manager / head of software for a small software company and was working on my own previously to this position. I want to however make the transition to product manager from my current position. You could ask about position differences, pitfalls of using project management processes and decision making as a product manager. What skill sets you need for the product manager job What are the position differences? What are the pitfalls of using project management processes and decision making as a product manager? What skill set is required for the product manager job? Is the transition easier for a project manager?

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