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• Centrally managing 100+ websites without bankrupting a small company

  - by palintropos

  I'm mainly interested in opinions on the trade-offs between having a single central server all the websites connect to as opposed to each website mirroring a subset of the master database with all the products in it. For example, will I run into severe performance issues (or even security issues, or restrictions) making queries to an offsite database? Will we hit scalability issues we can't handle early on from the sheer bandwidth required to maintain this? If we do go with something like a script that keeps smaller databases (each containing a subset of the central master data) in sync, what sorts of issues will we likely encounter there? I would really like the opinions of people far more knowledgeable than I am regarding the pros and cons of both setups and what headaches we are likely to encounter. CLARIFICATION: This should not be viewed as a question about whether we should implement one database vs multiple databases. This question has been answered numerous times. The question is regarding the pros and cons for a deployment like this having the ability to manage all the websites centrally (one server) vs trying to keep them all in sync if they each have their own db (multiple servers). REAL-WORLD EXAMPLE: We are a t-shirt company, and we have individual websites for our different kinds of t-shirts, but we're looking at a central order management integrated with our single shopping cart (which is ColdFusion + MySQL). Now, let's say we have a t-shirt that's on 10 of our websites and we change an image for it. Ideally we would change that in one place and the change would propagate, but how would we set this up?

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• Pair Programming, for or against? [on hold]

  - by user1037729

  I believe it has many advantages over individual programming: Pros By pairing senior with relatively junior staff, the more junior can get up to speed with both project and computing experience, and the senior will re-think the problem in order to communicate with the junior, thus re-checking his own thinking (rubber duck principle!). At least 2 people will know about any single piece of work, if one person is away the other can cover, or if some one leaves a project knowledge transfer is easier. Two brains on a complex task is more effective, communication keeps the work free flowing and provides redundancy in decision making. Code is effectively reviewed as its being written, no need for a separate reviewing phase which requires a context switch as someone who has not been working on the piece in question would be required to understand and review the related code. Reviewing code on your own which you haven't written or architected is not fun, hence counter productive. Cons Less bandwith for performing tasks, lets say we have 4 devs, pair programming requires 2 devs per task, so we would be doing 2 tasks concurrently as a posed to 4. I believe this "Con" does not stand up as the pair programmed task would complete sooner and comes with a review built in for free! Ie the pair programming task would be more efficient and thus free up resources earlier. Less flexibility to chop and change tasks as two developers are tied into a task, when flexibility is required this could be a problem.

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• Working with Active Directory and Windows Small Business Server 2008

  - by AreYouSerious

  I have to say that in most of my time as a network engineer I have had the opportunity to play with servers, but mostly it's been to put our management software on, and that was about it. I have been a Systems Network Engineer for about three months now, and as such I have been respnosible for the configuration of our test devices... this being said, I have had to start working through how to configure and apply such things as GPO through a new forest, domain and OU. This being said I have configured about three different GPO's and applied them to different locations. The first laptop that I brought into the domain took the default Domain group Policy... this was cool, I got excited... then When I tried to bring in the second Laptop, it didn't take the policy. I looked at the configuration, and the default domain policy was applied to domain computers, however since the laptop resides in the SBS Computers of the OU that was created, SBS created individual policies for XP and Vista for that OU, which I was unaware of. So the default policy for that ou overrode the domain policy and none of the options that were defined in the Domain policy were applied... this being said, I am now working on putting the default Domain as an applicable policy in the OU, thus I won't have to reconfigure another policy to mirror the Domain Policy... here goes nothing!!!.... More to follow Later.

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• How to enable a Web portal-based rich enterprise platform on different domains and hosts using JS without customization/ server configuration

  - by S.Jalali

  Our company Coscend has built a Web portal-based communications and cloud collaboration platform by using JavaScript (JS), which is embedded in HTML5 and formatted with CSS3. Other technologies used in the core code include Flash, Flex, PostgreSQL and MySQL. Our team would like to host this platform on five different Windows and Linux environments that run different types of Web servers such as IIS and Apache. Technical challenge: Each of these Windows and Linux servers have a different host name and domain name (and IP address), but we would like to keep our enterprise platform independent of host server configuration. Possible approach to solution: We think an API (interface module with a GUI) is needed to accomplish this level of modularity and flexibility while deploying at our enterprise customers. Seeking your insights: In this context, our team would appreciate your guidance on: Is there an algorithmic method to implement this Web portal-based platform in these Windows and Linux environments while separating it from server configuration, i.e., customizing the host name, domain name and IP address for each individual instance? For example, would it be suitable to create some JS variables / objects for host name and domain name and call them in the different implementations? If a reference to the host/domain names occurs on hundreds of portal modules, these variables or JS objects would replace that. If so, what is the best way to make these object modules written in JS portable and re-usable across different environments and instances for enterprise customers? Here is an example of the implemented code for the said platform. The following Web site (www.CoscendCommunications.com) was built using this enterprise collaboration platform and has the base code examples of the platform. This Web site is domain-specific. We like to make the underlying platform such that it is domain and host-independent. This will allow the underlying platform to be deployed in multiple instances of our enterprise customers.

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• Developing an iOS app for a single device - licensing issue

  - by bfavaretto

  I'm developing an iOS app for a museum as a freelancer. It's a very simple video player, to be installed on a single iPad that will be part of a permanent exhibition, basically acting as a kiosk. It turns out the iPad is the ideal device for that if you're looking for a small and affordable touchscreen. The problem is: as far as I can tell, none of the Apple Developer Program options available will allow me to distribute an app like that. The relevant options are (from the link above): iOS Developer Program ($99/year) Select this program if you would like to distribute apps on the App Store as an individual, sole proprietor, company, organization, government entity or educational institution. iOS Developer Enterprise Program ($299/year) Select this program if you would like to develop proprietary apps for internal distribution within your company, organization, government entity or educational institution. The regular program requires distribution through the App Store. The Enterprise version is for internal distribution within my own organization. Neither is the case here! It seems like I'm doomed to violate Apple's terms of service (and I can think of at least two ways of doing that: jailbreaking, or changing the iPad's date so it won't know the provisioning profile expired). Is that really so, or did I get the descriptions wrong? Has anyone here been in a similar situation?

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• GUI based backup utility [closed]

  - by Chethan S.

  Possible Duplicate: Comparison of backup tools I have read favorable reviews for 'Back In Time' for the purpose stated above. Still I am posting this question as I have some demands in my mind. Few years back I was using ThinkVantage Rescue and Recovery by IBM on my Lenovo PC under Windows. That provided me nice features like compressed backups, boot time options - OS Repair, Restore entire OS, restore entire system to an older date, restore individual files etc. Out of these the feature I liked the most was compressed backups. Similar features are available in software like Norton Ghost too. In Back In Time I was surprised to see that the snapshot takes up same amount of space as that of the original contents, no compression at all. Furthermore, I was not able to find options to change the compression ratio etc. under settings. According to me compression of backups is a must have feature. Therefore, can anyone suggest me any other utility which can serve the purpose. I insist on GUI based tool since I don't want to mess up with backups!

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• What tools and knowledge do I need to create an application which generates bespoke automated e-mails? [on hold]

  - by Seraphina

  I'd like some suggestions as to how to best go about creating an application which can generate bespoke automated e-mails- i.e. send a personalized reply to a particular individual, interpreting the context of the message as intelligently as possible... (This is perhaps too big a question to be under one title?) What would be a good starting point? What concepts do I need to know? I'd imagine that the program needs to be able trawl through e-mails as and when they come in, and search for keywords in e-mail content, in order to write an appropriate reply. So there needs to be some form of automated response embedded in the code. Machine learning and databases come to mind here, as I'm aware that google incorporates machine learning already in gmail etc. It is quite tricky to google the above topic, and find the perfect tutorial. But there are some interesting articles and papers out there: Machine Learning in Automated Text Categorization (2002) by Fabrizio Sebastiani , Consiglio Nazionale Delle Ricerche However, this is not exactly a quick start guide. I intend to add to this question, and no doubt other questions will spark off this one. I look forward to suggestions.

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• Calculation of Milestones/Task list

  - by sugar

  My project manager assigned me a task to estimate the development time for an iPad application. Lets assume that I gave estimation of 15 working days. He thought that the number of days where too many and client needed the changes to the application urgently (as in most of cases). So, he told me: "I am going to assign two developer including you and as per my understandings and experience it won't take more than seven working days." Clarifications I was given the task of estimating development time for an individual. How could I be sure that 2 developers are going to finish it within 7 days? (I am new to team & I hardly know the others abilities) Questions Why do most of project managers / team leaders have understandings like: If one developer requires N days, Then two developers would require N/2 days, Do they think something like developer = s/w production machines? Should a team member (developer, not team lead or any higher post) estimate other developers work? I didn't deny anything in the meeting and didn't said, but what should be the appropriate answer to convince them that N/2 formula that they follow is not correct?

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• Successful Fusion CRM Bootcamp in Paris - July 24-24th

  - by Richard Lefebvre

  The first Fusion CRM Bootcamp for EMEA partners successfully took place in the Paris Pullmann Bercy hotel on July 24-26th. The agenda covered 14 Fusion CRM topics in depth, including detailed presentations and hands-on exercises, delivered by a team of Fusion CRM experts from Oracle Product Development. 89 participants represented 55 companies from 14 different countries, attended this event which was also a great opportunity to network with Oracle Product Development and Alliances & Channels executives during the breaks and the "Fusion Lounge" session each day after the training. As expressed by the participants in the event survey, the overall satisfaction reached to an impressive percentage of 85+ with the response of “met or exceeded the expectations” and with individual comments such as: On top of the presentation of Fusion CRM as a product, this event allowed to better understand Oracle's product and rollout strategy. The ability to meet the development team was really a bonus. Extremely valuable information given that enables integrators to go on the road of Fusion CRM Excellent organization, good product information coverage and demonstration Additional Fusion CRM bootcamps are planed across EMEA in the next quarters, although they will probably be under a different format which is still to be defined.

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• Advice and resources on collaborative environments

  - by Tjaart

  I need some advice on collaborative software environments. More specifically, I am looking for books and reference materials that can aid me in understanding team and code structures and the interactions thereof. In other words books, blogs or white papers explaining: Different strategies for structuring teams that share common code between each other but have distinct individual functions? To summarise my question I would like to know what would be a good source of knowledge if I were to set up teams in an organisation that shared code but each unit still remained autonomous. I have done some research on this subject and explored: code review tools, distributed VCS, continuous integration tools, Unit testing automation. The tough part about implementing these tools are to determine where a good place would be to start, which tools are low hanging fruit, which tools or methods provide higher success rates. If someone asks me about code quality reference I point them to Code Complete. I am looking for an equivalent guide on software team structures and tools to make this equation work better. I realise that this question is quite vague but it arose as "we need to share code between teams without breaking each others stuff and causing management headaches and reams of red tape" The answer is definitely not simple and requires changes on many levels, hence the question. If the question is too vague please vote to close or delete. I would accept any good starting point as an answer.

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• Do cross reference database tables have a place in domain driven design?

  - by Mike Cellini

  First some background. Let's say we have a system where a customer is placing an order in a web interface. The items that customer is ordering can priced in various ways. Sometimes including the cost of delivery and sometimes not at all. That pricing effectively depends on a variety of factors including the vendor's own pricing model, that vendor's individual contracts with customers as well as that vendor's contracts with its own suppliers. Let's assume that once a customer places an order for a particular item and chooses a contract if any, the method of delivery can be determined by variables on those contracts. Those delivery methods also live in their own table in the database and have various properties consumed downstream. It makes sense that a cross reference or lookup table would store that information. That table would be loaded into the domain and could then be used to apply the appropriate delivery method while processing the order. Does this make sense in the context of domain driven design? Or is my thinking too relational? Is this logic that should be built into it's own class/method (I mean beyond apply the cross reference table data)?

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• Necessary Infrastructure for large project with many components communicating through IPCs

  - by jluzwick

  I have a fairly in depth question which probably doesn't have an exact answer. As a software engineer, I am usually tasked with working on a program or project with minimal understanding of how other components or programs in the project interact with each other. When one program fails in a sea of multiple components and processes, what infrastructure elements are necessary to ensure that the problem can be accurately tracked to the violating application? More specifically, what infrastructure elements should be necessary for this large project and which are optional but very helpful. One such example I can think of is some form of a common logging infrastructure that allows for a developer or tester to easily browse through a log that contains numerous components for messages that might allude to the culprit program along with a "trail" of what happened before the issue occurred. I'm thinking of something similar to Androids alogcat tool. These necessary infrastructure elements should be language-agnostic. While these elements should be understood by all engineers on the team in question, which elements should be understood at great detail by the technical system engineers and what should the individual software engineers be responsible for adding to their tools to allow for such infrastructures to take hold? Please feel free to ask for clarification if something does not make sense as I understand this question is very broad and needs some refinement. I will refine as necessary from the answers and comments I receive. Thanks for any help!

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• Useful WatiN Extension Methods

  - by Steve Wilkes

  I've been doing a fair amount of UI testing using WatiN recently – here’s some extension methods I've found useful. This checks if a WatiN TextField is actually a hidden field. WatiN makes no distinction between text and hidden inputs, so this can come in handy if you render an input sometimes as hidden and sometimes as a visible text field. Note that this doesn't check if an input is visible (I've got another extension method for that in a moment), it checks if it’s hidden. public static bool IsHiddenField(this TextField textField) { if (textField == null || !textField.Exists) { return false; } var textFieldType = textField.GetAttributeValue("type"); return (textFieldType != null) && textFieldType.ToLowerInvariant() == "hidden"; } The next method quickly sets the value of a text field to a given string. By default WatiN types the text you give it into a text field one character at a time which can be necessary if you have behaviour you want to test which is triggered by individual key presses, but which most of time is just painfully slow; this method dumps the text in in one go. Note that if it's not a hidden field then it gives it focus first; this helps trigger validation once the value has been set and focus moves elsewhere. public static void SetText(this TextField textField, string value) { if ((textField == null) || !textField.Exists) { return; } if (!textField.IsHiddenField()) { textField.Focus(); } textField.Value = value; } Finally, here's a method which checks if an Element is currently visible. It does so by walking up the DOM and checking for a Style.Display of 'none' on any element between the one on which the method is invoked, and any of its ancestors. public static bool IsElementVisible(this Element element) { if ((element == null) || !element.Exists) { return false; } while ((element != null) && element.Exists) { if (element.Style.Display.ToLowerInvariant().Contains("none")) { return false; } element = element.Parent; } return true; } Hope they come in handy

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• The Increasing Focus on Architecture

  - by Bob Rhubart

  If you follow my updates on Twitter or on the OTN ArchBeat page on Facebook you have probably noticed that I'm a regular reader of Joe McKendrick's SOA blog on ZDNet. Usually I'm content to simply share a link on my social networks when I find one of McKendrick's posts interesting. But with a recent post, In the cloud era, let's start calling IT what it is: 'Innovation Team', McKendrick hit on a point that warrants more than a quick link: "IT is no longer just a department full of people who code, build and maintain systems. IT is the business partner that plans and strategizes what types of technology solutions the business needs to move forward." Of course, what McKendrick is describing is an increased focus on architecture. Assuming that McKendrick's assessment is correct — and I do — that expanding focus, from coding, building, and maintaining systems to planning and strategizing technology solutions that serve the business, isn't limited to the organizational level. The individual roles within the IT organization will also have to shift to a more broadly architectural mindset. McKendrick's post references Dr. Irving Wladawsky-Berger's assessment of cloud computing as a critical "third model" of computing to emerge in the 50-year history of Information Technology. As computing itself evolves, the underlying roles that make computing possible must evolve accordingly. That evolution will be defined by an increased focus on architecture.

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• How Do You Get Answers?

  - by Grant Fritchey

  We all learn differently. Some people really prefer to sit with a book. Others need class room time, with an instructor. Still others just want to do things themselves until they figure them out. And sometimes, it's all of the above. Since we all learn differently, is it any surprise that we ask questions differently? Some of us are going to want to phrase a very focused question that should yield a limited and concise answer. Others are going to want to have a long involved discussion with possible variations. There are those among us who will want to know whether or not their peers agree with a given answer. Still more are going to want to see lots of points of view dished out so they can understand things in a different way. Many of us want to know when a question has been asked that there is a hard, well defined answer. The rest are willing to read through a bevy of answers and discussion, deciding for ourselves who has come up with the best solution. Where am I going with this? Excellent question. Since we all ask questions in different ways isn't it great that we have places to go that let us ask questions and get answers in a way that's best suited to our individual preferences. Do you want the long-running discussion format? Then you should be hanging out on the forums over at SQL Server Central. Do you want specific answers with direct peer evaluation of the strength of those answers? Then you should be hanging out on the forums over at Ask SQL Server Central. You can get answers to your questions, and do it in a way that's most comfortable for you.

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• Over 300 "NetBeans Platform for Beginners" Sold

  - by Geertjan

  I've noticed that the authors of "NetBeans Platform for Beginners" have started exposing the number of sales they have achieved. Below, notice the '304' (which will probably change quite quickly) at the lower left end of this screenshot: That's pretty good since the book has only existed for a few months and developers tend to share books they buy in PDF format. That probably means there are 300 teams of software developers around the world who are using the book, which is pretty awesome. (Though it would help the authors significantly, I'm sure, if individual developers on teams would buy the book, rather than sharing one between them. Come on, let's support these great authors so that they'll write more books like this.) Also note that there is a set of reviewer comments on the page above: Plus, the book is updated at the end of each month, so it continues to grow and improve from month to month, for free for everyone who has bought it. If you've read the book and want to contribute a review like the above, contact walternyland @ yahoo dot com. Great work, guys! For anyone out there who hasn't got it yet: https://leanpub.com/nbp4beginners

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• Looking for an example of how a software project can be managed/deployed

  - by rguilbault

  My company is evaluating adopting off-the-shelf ALM products to aid in our development lifecycle; we currently use our own homegrown solutions to manage requirements gathering, specification documentation, testing, etc. One of the issues I am having is understanding how to move code between stages of development. We have what we call a pipeline, which consists of particular stops: [Source] - [QC] - [Production] At the first stop, the developer works out a solution to some requested change and performs individual testing. When that process is complete (and peer review has been performed), our ALM system physically moves the affected programs from the [Source] runtime environment to the [QC] runtime environment. This movement of code is triggered by advancing the status of the change request to match the stage of the pipeline. I have been searching the internet for a few days trying to find how the process is accomplished elsewhere -- I have read a bit about builds, automated testing, various ALM products, etc. but nowhere does any of this state how builds interact with initial change requests, what the triggers are, how dependencies are managed, how the various forms of testing are accommodated (e.g. unit testing, integration testing, regression testing), etc. Can anyone point me to any resources detailing specific workflows or attempt to explain (generically) how a change could/should be tracked and moved though the development lifecycle? I'd be very appreciative. Note: I've cleaned up the question to hopefully make it easier to understand. Also, I found another question (which I can't find now) that referenced this book, which sounds like it might be exactly what I am looking for -- not sure if I want to shell out the cash for it, though.

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• Have you Been Missing the 'About This Record' Functionality on the Customer Form...?

  - by MargaretW

  Do you have fond memories of the 'Help -> About This Record'  functionality that used to be available in the old Customer form - when it was a form, and not a java html screen?  Back in Release 11i, we had the ability to identify when the customer record had last been updated and by whom.  When some forms were replaced by Java HTML screens, you could identify some of this information via the 'About this Page' hyperlink at the bottom left hand corner of the HTML page.  You could enable this by enabling the FND: Diagnostics profile option, but many customers found this had an adverse effect on performance and additionally was not user-friendly.   Our customers tell us that this feature was widely used to identify owner/update information in many business processes, including auditing, customer entry/update, research and testing.  There have been various efforts to revert this feature by customising java pages, but this was not fully successful in some cases.  Oracle Support is happy to announce that this functionality has now been included in the Customer screens in Release 12.2 onwards.   You will be able to query the record history at customer level, at site level, at site address levels and for all tabs relating to the customer. Simply click on the 'Record History' icon, available in the Record History column on a summary screen, or via the same icon on the individual detail screen to display the following information: Last Updated Date: Last Updated By Creation Date Created By Last Update Login

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• Creating Ideal Customers with Modern Marketing

  - by Richard Lefebvre

  “Without that real-time perspective, it's just not possible to stay in step with what your customers want and need.” — Customer-Obsessed Marketing Is Your Next Competitive Edge Every business talks about focusing on the customer. But few actually deliver. Why? Because digital marketing technology can’t tell a compelling story. It lacks engaging dialogue with no connection beyond the transaction. It’s lost in translation because marketers don’t speak code. And it’s confusing to the customer because marketing and IT can’t connect process and data. Take a look at your digital marketing picture. From a distance it may look fine. But look up close. It’s fragmented and the dots are not connected. You need much higher resolution. Step back and see the big picture. Zoom in on the individual customer. But you’ll need Modern Marketing technology engineered with enterprise grade data management and proven cloud performance. Explore the people, processes, and technology of the Oracle Marketing Cloud. Create a culture of customer obsession. Simplify marketing across all channels to turn casual prospects into passionate advocates. Engage ideal customers with a meaningful experience. Personalize your brand narrative for each customer in every chapter of your story to increase engagement and revenue. Read the full article and watch the videos here

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• .NET XPath Returns No Results

  - by Stacy Vicknair

  When using XPath in .NET one of the gotchas to be aware of is that all namespaces must be named, otherwise you’ll end up with no results. Default namespaces that are specified with xmlns alone still need to be recognized in the XPath query! Say I had a bit of XML like what is returned from the QueryService web service in Sharepoint: 1: <?xml version="1.0" encoding="UTF-8"?> 2: <ResponsePacket xmlns="urn:Microsoft.Search.Response"> 3: <Response> 4: <Range> 5: ... 6: <Results> 7: <Document xmlns="urn:Microsoft.Search.Response.Document" relevance="849"> 8: ...   When consuming and navigating this response with XPath it is necessary to name all namespaces. Then those named namespaces must be used in reference to the individual element being requested (i.e. doc:Document). In VB: 1: Dim xdoc = new XPathDocument(reader) 2: Dim nav = xdoc.CreateNavigator() 3: Dim nsMgr = new XmlNamespaceManager(nav.NameTable) 4: nsMgr.AddNamespace("resp", "urn:Microsoft.Search.Response") 5: nsMgr.AddNamespace("doc", "urn:Microsoft.Search.Response.Document") 6:  7: Dim results = nav.Select("//doc:Document", nsMgr)   In C#: 1: var xdoc = new XPathDocument(reader); 2: var nav = xdoc.CreateNavigator(); 3: var nsMgr = new XmlNamespaceManager(nav.NameTable); 4:  5: nsMgr.AddNamespace("resp", "urn:Microsoft.Search.Response"); 6: nsMgr.AddNamespace("doc", "urn:Microsoft.Search.Response.Document"); 7:  8: var results = nav.Select("//doc:Document", nsMgr);

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• How can # of unique visitors be more than # of visits?

  - by Dallas

  I am confused as heck. When looking at a few individual pages, I am seeing weird results I hope someone can help explain. I am doing manual standard reports, and not creating or using a widget. For each of the two tests below, the metrics I am using are visits (not visitors) and unique visitors. I am using Page as my primary dimension and Page Title as secondary. I am filtering to include certain Pages. Example 1 - Looking at a single page... I see 731 unique visitors and 169 visits. How is this possible? Does google just flip them around for some reason? Example 2 - Looking at several pages combined... If you examine the timeline below , you can see that the numbers are all over the place. How is it possible to have more unique visitors than visits? What am I missing? I would suspect that if things were just flipped around, then I should still see one line that is always below the other line. Anyone clue me in to what may be happening here? I also notice that the visits column (just out of view) adds up to the total, but the unique visitors column clearly doesn't.

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• Rendering design. How can I effectively deal with forward, deferred and transparent rendering?

  - by user1423893

  I have many objects in my game world that all derive from one base class. Each object will have different materials and will therefore be required to be drawn using various rendering techniques. I currently use the following order for rendering my objects. Deferred Forward Transparent (order independent) Each object has a rendering flag that denotes which one of the above methods should be used. The list of base objects in the scene are then iterated through and added to separate lists of deferred, forward or transparent objects based on their rendering flag value. The individual lists are then iterated through and drawn using the order above. Each list is cleared at the end of the frame. This methods works fairly well but it requires different draw methods for each material type. For example each object will require the following methods in order to be compatible with the possible flag settings. object.DrawDeferred() object.DrawForward() object.DrawTransparent() It is also hard to see where methods outside of materials, such as rendering shadow maps, would fit using this "flag & method" design. object.DrawShadow() I was hoping that someone may have some suggestions for improving this rendering process, possibly making it more generic and less verbose?

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• What are solutions and tradeoffs to maintain search result consistency in a web application

  - by iammichael

  Consider a web application with a custom search function that must display the results in a paged manner (twenty per page with up to hundreds of thousands of total results) and the ability to drill down to individual results that maintain next/previous links to navigate through the results. Re-executing the search on each page request to get the appropriate results for that page of data can be too expensive (up to 15s per search). Also, since the underlying data can change frequently (e.g. addition of new results), re-executing could cause the next/previous functionality to result in inconsistent behavior (e.g. the same results reappearing on a later page after having been viewed on an earlier page). What options exist to ensure the search results can be viewed across multiple pages in a consistent manner, and what tradeoffs does each option have in terms of network, CPU, memory, and storage requirements? EDIT: I thought caching the query search results was an obvious necessity. The question is really asking about where to cache the result set and what tradeoffs might exist to each. For example, storing the ids of the entities in the result set on the client, or storing the IDs of the entities themselves in the users session on the web server, or in a temporary table in the database. I'm not looking specifically for a single solution as different scenarios may result in different approaches (and such a question would be more suited for stackoverflow.com rather than here), but more of a design comparison between the possible approaches.

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• M-Audio Delta 1010LT on 12.04

  - by user74039

  I have 12.04 64bit installed, my soundcard is a Delta 1010LT, it seems to be partially detected, I've been following steps here: https://help.ubuntu.com/community/SoundTroubleshooting/ lspci -v | grep -A7 -i "audio" shows this: 04:07.0 Multimedia audio controller: VIA Technologies Inc. ICE1712 [Envy24] PCI Multi-Channel I/O Controller (rev 02) Subsystem: VIA Technologies Inc. M-Audio Delta 1010LT Flags: bus master, medium devsel, latency 64, IRQ 22 I/O ports at ec00 [size=32] I/O ports at e880 [size=16] I/O ports at e800 [size=16] I/O ports at e480 [size=64] Capabilities: <access denied> Kernel driver in use: snd_ice1712 aplay shows this: **** List of PLAYBACK Hardware Devices **** card 0: M1010LT [M Audio Delta 1010LT], device 0: ICE1712 multi [ICE1712 multi] Subdevices: 1/1 Subdevice #0: subdevice #0 In the sound settings on the desktop all I see is the ICE1712 S/PDIF, which I don't use, I want to use the individual outputs on the card, I'm not so bothered about inputs, I just want the playback for now. If I open alsamixer in the console, I see all of the output and input channels, i've raised the volume on them but I don't get anything in the sound settings on the desktop and when I play any sound, I hear nothing. Can someone help?

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• Good practice on Visual Studio Solutions

  - by JonWillis

  Hopefully a relativity simple question. I'm starting work on a new internal project to create tractability of repaired devices within the buildings. The database is stored remotely on a webserver, and will be accessed via web API (JSON output) and protected with OAuth. The front end GUI is being done in WPF, and the business code in C#. From this, I see the different layers Presentation/Application/Datastore. There will be code for managing all the authenticated calls to the API, class to represent entities (business objects), classes to construct the entities (business objects), parts for WPF GUI, parts of the WPF viewmodels, and so on. Is it best to create this in a single project, or split them into individual projects? In my heart I say it should be multiple projects. I have done it both ways previously, and found testing to be easier with a single project solution, however with multiple projects then recursive dependencies can crop up. Especially when classes have interfaces to make it easier to test, I've found things can become awkward.

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