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  • Microkernel architectural pattern and applicability for business applications

    - by Pangea
    We are in the business of building customizable web applications. We have the core team that provides what we call as the core platform (provides services like security, billing etc.) on top of which core products are built. These core products are industry specific solutions like telecom, utility etc. These core products are later used by other teams to build customer specific solutions in a particular industry. Until now we have a loose separation between platform and core product. The customer specific solutions are build by customizing 20-40% of the core offering and re-packaging. The core-platform and core products are released together as monolithic apps (ear). I am looking to improvise the current situation so that there is a cleaner separation on these 3. This allows us to have evolve each of these 3 separately etc. I've read through the Mircokernel architecture and kind of felt that I can take apply the principles in my context. But most of my reading about this pattern is always in the context of operating systems or application servers etc. I am wondering if there are any examples on how that pattern was used for architecting business applications. Or you could provide some insight on how to apply that pattern to my problem.

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  • Five Ideas: Project Management

    - by Sylvie MacKenzie, PMP
     Except from Profit Magazine “For everyone to put on the project manager hat and standardize the way every single thing is done means that now the whole organization is on the same page as to what needs to occur from the time a hurricane hits Haiti and when a boat pulls in to unload supplies.” —Rich D’Addario, consulting project manager in the Primavera Global Business Unit at Oracle, on helping AmeriCares deliver aid to Haiti “Primavera P6 Analytics generates information that can help organizations improve their utilization and trim down overall operating costs. But more importantly, it gives organizations improved visibility.” —Yasser Mahmud, vice president of product strategy and industry marketing in Oracle’s Primavera Global Business Unit “Organizations are constantly looking for ways to improve the speed and precision of their decisions and work without creating environments and systems that limit their personnel through rigid structures and inflexible processes. The latest release of Primavera Portfolio Management meets this demand by further streamlining processes and supporting enhanced decision-making, helping drive better value from portfolios. In addition, the new UI clearly demonstrates Oracle's commitment to providing a seamlessly integrated enterprise project portfolio management product suite.” —Mike Sicilia, senior vice president, Oracle's Primavera “Make it a business project, not an IT project. All levels of functional management must have ownership, responsibility, and accountability for the success of the implementation.” —from Eaton Operations Services Manager Marcos Baccetto's 9 Project Management Tips “AEC firms must strategically pursue standardization opportunities in the project management area while preserving the spirit of entrepreneurism and flexibility at an individual project manager level. An enterprise technology platform doesn't only help with standardization of key project management processes across the enterprise; it also improves performance management, team collaboration and client specific reporting at an individual project level.” —Maneesh Chhabra is a director of Industry Strategy and Insight at Oracle

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  • Join the SOA and BPM Customer Insight Series

    - by Dain C. Hansen
    Summer is here! So put on your shades, kick back by the pool and watch the latest SOA and BPM customer insight series from Oracle. You’ll hear directly from some of Oracle’s most well respected customers across a range of deployments, industries, and use cases. You’ve heard us tell you the advantages of Oracle SOA and Oracle BPM. But this time, listen to what our customers are saying: See Rain Fletcher, VP of Application Development and Architecture at Choice Hotels, describe how they successfully made the transition from a complex legacy environment into a faster time-to-market shared services infrastructure as they implemented their event-driven Google API project. Listen to the County of San Joaquin, California discuss how they transformed to a services-oriented architecture and business process management platform to gain efficiency and greater visibility of mission critical information important to citizen public safety. Hear from Eaton, a global power management company, review innovative strategies for a successful application integration implementation, specifically the advantages of transitioning from TIBCO to using Oracle SOA and Oracle Fusion Applications.  Learn how Nets Denmark A/S implemented Oracle Unified Business Process Management Suite in just five months. Review the implementation overview from start to production, including integration with legacy systems. And finally, listen to Farmers Insurance share their SOA reference architecture as well as a timeline for how their services were deployed as well as the benefits for moving to an Oracle SOA-based application infrastructure.  Don’t miss the webcast series. Catch the first one on June 21st at 10AM PST with Rain Fletcher from Choice Hotels, and Bruce Tierney, Director Oracle SOA Suite. Register today!

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  • Get to Know a Candidate (6 of 25): Jill Stein&ndash;Green Party

    - by Brian Lanham
    DISCLAIMER: This is not a post about “Romney” or “Obama”. This is not a post for whom I am voting. Information sourced for Wikipedia. Stein is a physician with degrees from Harvard College and Harvard Medical School.  She serves on the boards of Greater Boston Physicians for Social Responsibility and MassVoters for Fair Elections, and has been active with the Massachusetts Coalition for Healthy Communities Jill Stein advocates a "Green New Deal" in which renewable energy jobs would be created to address climate change and environmental issues with the objective of employing "every American willing and able to work". Citing the research of Dr. Phillip Harvey, Professor of Law & Economics at Rutgers University, as evidence of the successful economic effects of the 1930s' New Deal projects, Stein would fund the plan with a 30% reduction in the U.S. military budget, returning US troops home, and increasing taxes on areas such as capital gains, offshore tax havens and multimillion dollar real estate. Stein plans on impacting what she sees as a growing convergence of environmental crises in water, soil, fisheries and forests, through the creation of sustainable infrastructure based in clean renewable energy generation and sustainable communities principles such as increasing intra-city mass transit and inter-city railroads, creating 'complete streets' that safely encourage bike and pedestrian traffic and regional food systems based on sustainable organic agriculture The Green Party of the United States was founded in 1991 as a voluntary association of state green parties. With its founding, the Green Party of the United States became the primary national Green organization in the United States, eclipsing the Greens/Green Party USA, which emphasized non-electoral movement building. The Green Party of the United States of America emphasizes environmentalism, non-hierarchical participatory democracy, social justice, respect for diversity, peace and nonviolence. Their "Ten Key Values," which are described as non-authoritative guiding principles, are as follows: Grassroots democracy Social justice and equal opportunity Ecological wisdom Nonviolence Decentralization Community-based economics Feminism and gender equality Respect for diversity Personal and global responsibility Future focus and sustainability The Green Party does not accept donations from corporations. Thus, the party's platforms and rhetoric critique any corporate influence and control over government, media, and American society at large. Stein has access to 403 electoral votes and is a write-in candidate in GA, IN, and MS Learn more about Jill Stein and Green Party on Wikipedia.

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  • HTG Explains: What Is Bitcoin, the Virtual Digital Currency?

    - by YatriTrivedi
    Bitcoin is a virtual currency that employs some very interesting principles. Here’s the skinny on what exactly it is and how the fascinating technology behind it works. Disclaimer: This is NOT financial or legal advice. This. Is. NOT. Financial. Or. Legal. Advice. This is not, in any way, shape, or form, financial or legal advice. We’re covering this topic because of the technological implementations it uses and the innovations it attempts to make. If you do anything because of this post, we are not responsible because this is NOT financial or legal advice. ^_^ Latest Features How-To Geek ETC Have You Ever Wondered How Your Operating System Got Its Name? Should You Delete Windows 7 Service Pack Backup Files to Save Space? What Can Super Mario Teach Us About Graphics Technology? Windows 7 Service Pack 1 is Released: But Should You Install It? How To Make Hundreds of Complex Photo Edits in Seconds With Photoshop Actions How to Enable User-Specific Wireless Networks in Windows 7 The History Of Operating Systems [Infographic] DriveSafe.ly Reads Your Text Messages Aloud The Likability of Angry Birds [Infographic] Dim an Overly Bright Alarm Clock with a Binder Divider Preliminary List of Keyboard Shortcuts for Unity Now Available Bring a Touch of the Wild West to Your Desktop with the Rango Theme for Windows 7

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  • Leveraging .Net 4.0 Framework Tools For Encrypting Web Configuration Sections

    - by Sam Abraham
    I would like to share a few points with regards to encrypting web configuration sections in .Net 4.0. This information is also applicable to .Net 3.5 and 2.0. Two methods can work perfectly for encrypting connection strings in a Web project configuration file:   1-Do It All Yourself! In this approach, helper functions for encrypting/decrypting configuration file content are implemented. Program would explicitly retrieve appropriate content from configuration file then decrypt it appropriately.  Disadvantages of this implementation would be the added overhead for maintaining the encryption/decryption code as well the burden of always ensuring sections are appropriately decrypted before use and encrypted appropriately whenever edited.   2- Leverage the .Net 4.0 Framework (The Way to go!) Fortunately, all needed tools for protecting configuration files are built-in to the .Net 2.0/3.5/4.0 versions with very little setup needed. To encrypt connection strings, one can use the ASP.Net IIS Registration Tool (Aspnet_regiis.exe). Note that a 64-bit version of the tool also exists under the Framework64 folder for 64-bit systems. The command we need to encrypt our web.config file connection strings is simply the following:   Aspnet_regiis –pe “connectionstrings” –app “/sampleApplication” –prov “RsaProtectedConfigurationProvider”   To later decrypt this configuration section:   Aspnet_regiis –pd “connectionstrings” –app “/SampleApplication”   The following is a brief description of the command line options used in the example above. Aspnet_regiis supports many more options which you can read about in the links provided for reference below.   Option Description -pe  Section name to encrypt -pd  Section name to decrypt -app  Web application name -prov  Encryption/Decryption provider   ASP.Net automatically decrypts the content of the Web.Config file at runtime so no programming changes are needed.   Another tool, aspnet_setreg.exe is to be used if certain configuration file sections pertinent to the .Net runtime are to be encrypted. For more information on when and how to use aspnet_setreg, please refer to the references below.   Hope this helps!   Some great references concerning the topic:   http://msdn.microsoft.com/en-us/library/ff650037.aspx http://msdn.microsoft.com/en-us/library/zhhddkxy.aspx http://msdn.microsoft.com/en-us/library/dtkwfdky.aspx http://msdn.microsoft.com/en-us/library/68ze1hb2.aspx

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  • Raspberry Pi and Java SE: A Platform for the Masses

    - by Jim Connors
    One of the more exciting developments in the embedded systems world has been the announcement and availability of the Raspberry Pi, a very capable computer that is no bigger than a credit card.  At $35 US, initial demand for the device was so significant, that very long back orders quickly ensued. After months of patiently waiting, mine finally arrived.  Those initial growing pains appear to have been fixed, so availability now should be much more reasonable. At a very high level, here are some of the important specs: Broadcom BCM2835 System on a chip (SoC) ARM1176JZFS, with floating point, running at 700MHz Videocore 4 GPU capable of BluRay quality playback 256Mb RAM 2 USB ports and Ethernet Boots from SD card Linux distributions (e.g. Debian) available So what's taking place taking place with respect to the Java platform and Raspberry Pi? A Java SE Embedded binary suitable for the Raspberry Pi is available for download (Arm v6/7) here.  Note, this is based on the armel architecture, a variety of Arm designed to support floating point through a compatibility library that operates on more platforms, but can hamper performance.  In order to use this Java SE binary, select the available Debian distribution for your Raspberry Pi. The more recent Raspbian distribution is based on the armhf (hard float) architecture, which provides for more efficient hardware-based floating point operations.  However armhf is not binary compatible with armel.  As of the writing of this blog, Java SE Embedded binaries are not yet publicly available for the armhf-based Raspbian distro, but as mentioned in Henrik Stahl's blog, an armhf release is in the works. As demonstrated at the just-completed JavaOne 2012 San Francisco event, the graphics processing unit inside the Raspberry Pi is very capable indeed, and makes for an excellent candidate for JavaFX.  As such, plans also call for a Pi-optimized version of JavaFX in a future release too. A thriving community around the Raspberry Pi has developed at light speed, and as evidenced by the packed attendance at Pi-specific sessions at Java One 2012, the interest in Java for this platform is following suit. So stay tuned for more developments...

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  • Bahnbrechend und einsatzbereit: Oracle 12c In-Memory-Option Launch in Frankfurt

    - by Anne Manke
    Seit der Ankündigung der Oracle 12c In-Memory-Databankoption in San Francisco auf der Openworld im letzten Jahr, ist die DB Community gespannt, was diese bahnbrechende Technologie für Ad-hoc-Echtzeitanalysen von Live-Transaktionen, Data Warehousing, Reporting und Online Transaction Processing (OLTP) bringen wird. Die Messlatte liegt hoch, denn Larry Ellison verspricht mit der neuen 12c In-Memory-Option eine 100-fach schnellerer Verarbeitung von Abfragen bei Echtzeitanalysen für OLTP Prozesse oder Datawarehouses eine Verdoppelung der Transaktionsverarbeitung eine 100%ige Kompatibilität zu bestehenden Anwendungen Daten werden im Zeilenformat und Spaltenformat (In-Memory) abgelegt, und sind dabei aktiv und konsitstent Cloud-ready ohne Datamigration eine Ausweitung der In-Memory-basierten Abfrageprozesse auf mehrere Server    Um nur einige Features zu nennen >> mehr Infos finden Sie hier! Abfragen werden mit der neuen 12c In-Memory-Datenbankoption schneller bearbeitet, als die Anfrage gestellt werden kann, so Larry Ellison. Am 17. Juni 2014 wird die 12c In-Memory auf einer exklusiven Launch-Veranstaltung in Frankfurt am Main vorgestellt. Auf der Agenda stehen Vorträge, Diskussionen und eine LiveDemo der In-Memory-Datenbankoption.  Melden Sie sich jetzt an! Ort & Zeit: 17. Juni 2014, 9:30 - 15:15 Uhr in Radisson Blu Hotel (Franklinstrasse 65, 60486 Frankfurt am Main) Agenda 9:30 Registrierung 10:00 Begrüßung Guenther Stuerner, Vice President Sales Consulting, Oracle Deutschland (in deutscher Sprache) 10:15 Analystenvortrag Carl W. Olofson, Research Vice President, IDC (in englischer Sprache) 10:35 Keynote Andy Mendelsohn, Head of Database Development, Oracle (in englischer Sprache) 11:35 Podiumsdiskussion (in englischer Sprache): · Jens-Christian Pokolm, Postbank Systems AG · Andy Mendelsohn, Head of Database Development, Oracle · Carl W. Olofson, Research Vice President, IDC · Dr. Dietmar Neugebauer, Vorstandsvorsitzender, DOAG 12:30 Mittagessen 13:45 Oracle Database In Memory Option    Perform – Manage – Live Demo Ralf Durben, Senior Leitender Systemberater, Oracle Deutschland (in deutscher Sprache) 14:30 In Memory – Revolution for your DWH – Real Time Datawarehouse – Mixed Workloads – Live Demo – Live Data Query Alfred Schlaucher, Senior Leitender Systemberater, Oracle Deutschland (in deutscher Sprache) 15:15 Schlusswort & Networking

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  • How can I get run Ubuntu Desktop on my Galaxy Nexus?

    - by Jack Senechal
    On the Ubuntu for phones site it advertises the desktop view feature: "The phone becomes a full PC and thin client when docked.". And there's the demo by Canonical of something similar running under Ubuntu for Android. I realize they're different systems, but the end effect is in both is to have a full Ubuntu system running on the phone. I've installed Ubuntu Touch Preview on my Galaxy Nexus (toro), and it's working as expected (no cellular signal, but wifi works, etc). But when I plug in a monitor via HDMI it just mirrors the phone's touch display. There's also currently no bluetooth support for attaching keyboard and mouse. Keyboard only kind of works via USB, and mouse not at all. I've also tried running Ubuntu under Android via VNC, but the lack of responsiveness of VNC makes it impractical for daily use. I'd consider that route again if there is some way to make the UI more responsive. So the question is, how can set up my phone to run Ubuntu Desktop in a way that's useable as a laptop replacement? Is there a way to enable Desktop View on Ubuntu Touch? Or can I run Ubuntu for Android as in the previously referenced demo? Plugging into a monitor would be OK, but I'd love to be able to use the desktop interface with mouse and keyboard through the phone's screen as well. Touch input and an onscreen keyboard would be a plus but is definitely not necessary.

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  • Fixed-Function vs Shaders: Which for beginner?

    - by Rob Hays
    I'm currently going to college for computer science. Although I do plan on utilizing an existing engine at some point to create a small game, my aim right now is towards learning the fundamentals: namely, 3D programming. I've already done some research regarding the choice between DirectX and OpenGL, and the general sentiment that came out of that was that whether you choose OpenGL or DirectX as your training-wheels platform, a lot of the knowledge is transferrable to the other platform. Therefore, since OpenGL is supported by more systems (probably a silly reason to choose what to learn), I decided that I'm going to learn OpenGL first. After I made this decision to learn OpenGL, I did some more research and found out about a dichotomy that I was somewhere unaware of all this time: fixed-function OpenGL vs. modern programmable shader-based OpenGL. At first, I thought it was an obvious choice that I should choose to learn shader-based OpenGL since that's what's most commonly used in the industry today. However, I then stumbled upon the very popular Learning Modern 3D Graphics Programming by Jason L. McKesson, located here: http://www.arcsynthesis.org/gltut/ I read through the introductory bits, and in the "About This Book" section, the author states: "First, much of what is learned with this approach must be inevitably abandoned when the user encounters a graphics problem that must be solved with programmability. Programmability wipes out almost all of the fixed function pipeline, so the knowledge does not easily transfer." yet at the same time also makes the case that fixed-functionality provides an easier, more immediate learning curve for beginners by stating: "It is generally considered easiest to teach neophyte graphics programmers using the fixed function pipeline." Naturally, you can see why I might be conflicted about which paradigm to learn: Do I spend a lot of time learning (and then later unlearning) the ways of fixed-functionality, or do I choose to start out with shaders? My primary concern is that modern programmable shaders somehow require the programmer to already understand the fixed-function pipeline, but I doubt that's the case. TL;DR == As an aspiring game graphics programmer, is it in my best interest to learn 3D programming through fixed-functionality or modern shader-based programming?

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  • FY11 plans &ndash; how can you increase your SOA business?

    - by Jürgen Kress
    Thanks for a fantastic FY10 was great to work with all of you! Yes with the economic crises the fiscal year was hard. SOA and Oracle Fusion Middleware do address this challenges and can help companies to save cost to integrate their systems, automate and change their processes. More when we publish our fiscal year results. What is on the agenda for FY11? Specialization: It is key that you become SOA & Application Grid Specialized. We will focus our activities and budgets on partners with Specialization! Sales campaigns: To support you in our joint business we will continue to run joint sales campaigns. With OFM 11g there is a great opportunity to generate service revenue to migrate and to consolidate on the platform. It is key that you do register your opportunities within the Open Market Model (OMM) to ensure sales alignment. Enablement. With the release of many new products and versions training is key. We will continue to offer training dedicated to your role: sales, pre-sales and implementation. Make sure that you check local partner training calendars and sign up for the next bootcamps Thanks for your support! Jürgen Kress

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  • Revolutionizing Digital Commerce

    - by bwalstra
    The confluence of the Internet, the pace of change in technology, and the demands of the value-conscious consumer are accelerating the evolution of the global digital marketplace at an unprecedented rate. Success in the new digital economy has become inextricably linked with the agility to launch innovative products, services, and new business models efficiently with minimal risk. A major obstacle to agility, and by extension to success in digital commerce, is the fact that by and large information technology (IT) infrastructure is tightly coupled with particular business models. Enterprises, through well intentioned but misconstrued costsaving belief, continue to customize existing infrastructure and create now silos to support new business models. In reality, this approach results in rigid, inflexible business processes and exposes the enterprise to unnecessary risks, higher opportunity costs, and lower profit margins. Oracle, a leading supplier of business solutions to the enterprise, is enabling the business strategies necessary to succeed in the digital economy by offering a modern, open, modular, and functionally comprehensive revenue management solution that decouples IT infrastructure from business models. Enterprises using the Oracle solution are able to focus on core competencies and innovate unimpeded, assuring that business and IT systems will seamlessly adapt to changing conditions of the digital economy. Revolutionizing Digital Commerce:  An Oracle Revenue Management Solution

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  • Opportunities in Development in our Swedish office

    - by anca.rosu
    Hi everyone, my name is Henrik and I joined the JRockit group in 2004. Before that my background was Microsoft, as both a Test Competence lead and as a Program Manager. As an Engineering Manager at Oracle I lead a team of 11 developers. I focus on people management and the daily operations of the department with a heavy focus on interaction and dependencies between the groups and departments here at the Stockholm development site. I also make sure my team deliver on our commitments. I would like to give you a brief summary of the Oracle JRockit team: -The development group in Stockholm delivers several products for the Oracle Fusion Middleware stack. Our main products are JRockitVE which allows you to run a Java Virtual Machine without an operating system, the JRockit Java Virtual Machine which is the default jvm for all Oracle middleware products, and the JRockit MissionControl, a set of tools that allows developers to monitor their applications at runtime and perform advanced latency analysis as well as in-production memory leak detection etc. -The office has several departments focusing on different aspects of the product development process, not only to build features and test them but everything from building the infrastructure needed to automatically build and test the products to sustaining engineering that tracks down bugs in customer systems and provide them with patches. Some inspirational lines around what the Oracle JRockit group can offer you in terms of progress, development and learning: - It is a unique chance to get insight and experience building enterprise class software for one of the worlds largest software companies. Here there are almost unlimited possibilities for the right candidate to learn about silicon features and how to implement support for this in software, and to compile optimizations. The position will also give insight into the processes needed to produce software at this level in the industry. If you have any questions related to this article feel free to contact  [email protected].  You can find our job opportunities via http://campus.oracle.com. Technorati Tags: Development,Sweden,Jrockit,Java,Virtual Machine,Oracle Fusion Middleware,software

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  • Commercial product using a GPL OS

    - by pfried
    we are planning to create a commercial product. The product consists of come MCUs and a small computer (we are developping on a raspberry pi at the moment). The computer needs an operating system as we would like keep things like WLAN and booting as simple as possible. We create some software running on this computer (node.js application). The most operating systems like Arch Linux are licenced under the GPL. The product we would sell contains the computer with preinstalled OS and software. This system operates as a central access point to MCU devices and is able to control them. We use other's software in our product. We do not modify their source code. The product (the computer part) consists of a computer, an OS and software we create. How does the use of an OS affect our own code (licence)? Is there a possibility of avoiding GPL for our own code? eg. shipping the software seperated? Are there any effects to other components of our product, eg. the MCU part? The node.js application delivers a WebApp to the client where it is executed. Are there any effects (As we would like to sell parts of the code as an additional App on the App Stores)? I know we make use of the work of the community and i respect this. The problem is: The software alone is kind of useless without the MCU devices. I do not expect a legal advice.

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  • PASS Business Intelligence Virtual Chapter Upcoming Sessions (November 2013)

    - by Sergio Govoni
    Let me point out the upcoming live events, dedicated to Business Intelligence with SQL Server, that PASS Business Intelligence Virtual Chapter has scheduled for November 2013. The "Accidental Business Intelligence Project Manager"Date: Thursday 7th November - 8:00 PM GMT / 3:00 PM EST / Noon PSTSpeaker: Jen StirrupURL: https://attendee.gotowebinar.com/register/5018337449405969666 You've watched the Apprentice with Donald Trump and Lord Alan Sugar. You know that the Project Manager is usually the one gets firedYou've heard that Business Intelligence projects are prone to failureYou know that a quick Bing search for "why do Business Intelligence projects fail?" produces a search result of 25 million hits!Despite all this… you're now Business Intelligence Project Manager – now what do you do?In this session, Jen will provide a "sparks from the anvil" series of steps and working practices in Business Intelligence Project Management. What about waterfall vs agile? What is a Gantt chart anyway? Is Microsoft Project your friend or a problematic aspect of being a BI PM? Jen will give you some ideas and insights that will help you set your BI project right: assess priorities, avoid conflict, empower the BI team and generally deliver the Business Intelligence project successfully! Dimensional Modelling Design Patterns: Beyond BasicsDate: Tuesday 12th November - Noon AEDT / 1:00 AM GMT / Monday 11th November 5:00 PM PSTSpeaker: Jason Horner, Josh Fennessy and friendsURL: https://attendee.gotowebinar.com/register/852881628115426561 This session will provide a deeper dive into the art of dimensional modeling. We will look at the different types of fact tables and dimension tables, how and when to use them. We will also some approaches to creating rich hierarchies that make reporting a snap. This session promises to be very interactive and engaging, bring your toughest Dimensional Modeling quandaries. Data Vault Data Warehouse ArchitectureDate: Tuesday 19th November - 4:00 PM PST / 7 PM EST / Wednesday 20th November 11:00 PM AEDTSpeaker: Jeff Renz and Leslie WeedURL: https://attendee.gotowebinar.com/register/1571569707028142849 Data vault is a compelling architecture for an enterprise data warehouse using SQL Server 2012. A well designed data vault data warehouse facilitates fast, efficient and maintainable data integration across business systems. In this session Leslie and I will review the basics about enterprise data warehouse design, introduce you to the data vault architecture and discuss how you can leverage new features of SQL Server 2012 help make your data warehouse solution provide maximum value to your users. 

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  • MAAS/JuJu Clarifications

    - by ectoskeleton
    I really love the concept of MAAS underlying an OpenStack implementation, but there are a few questions about MAAS that I am not entirely clear on. Should all hosts be set to network boot at all times or after they have been registered and allocated as a service, should they boot to disk? After juju bootstrap is executed, I turn on the machine that has been allocated (note WoL isn't working, I suspect it's being blocked on the network), the machine boot's up and then juju status executes correct, agent running and all that good stuff. If I 'reboot' the machine (testing power failure/problem whatever), juju status comes back but the agent-state is no longer in running state, and so far I have to destroy the environment and restart. In all cases I have never been able to deploy any services to any of the other nodes. I deploy the service with juju, note which node it was assigned, and then start the system. The system just boots up into a basic node. If I SSH to it I have to enter password, so it's not setting up the ssh key or anything. This is on Ubuntu 12.04.1 LTS systems and HP GL360G7 hosts. The MAAS management server is running as a VM but all on the same network. At this point I am not sure if I am doing something wrong or if there is a problem somewhere else. Is the idea that anytime a host is rebooted it should be rebuilt from the ground up, or is something else going on behind the scene to tell it to boot the local image. If the latter, why doesn't the agent start on a system that has been successfully setup before (juju bootstrapped system)?

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  • To encryption=on or encryption=off a simple ZFS Crypto demo

    - by darrenm
    I've just been asked twice this week how I would demonstrate ZFS encryption really is encrypting the data on disk.  It needs to be really simple and the target isn't forensics or cryptanalysis just a quick demo to show the before and after. I usually do this small demo using a pool based on files so I can run strings(1) on the "disks" that make up the pool. The demo will work with real disks too but it will take a lot longer (how much longer depends on the size of your disks).  The file hamlet.txt is this one from gutenberg.org # mkfile 64m /tmp/pool1_file # zpool create clear_pool /tmp/pool1_file # cp hamlet.txt /clear_pool # grep -i hamlet /clear_pool/hamlet.txt | wc -l Note the number of times hamlet appears # zpool export clear_pool # strings /tmp/pool1_file | grep -i hamlet | wc -l Note the number of times hamlet appears on disk - it is 2 more because the file is called hamlet.txt and file names are in the clear as well and we keep at least two copies of metadata. Now lets encrypt the file systems in the pool. Note you MUST use a new pool file don't reuse the one from above. # mkfile 64m /tmp/pool2_file # zpool create -O encryption=on enc_pool /tmp/pool2_file Enter passphrase for 'enc_pool': Enter again: # cp hamlet.txt /enc_pool # grep -i hamlet /enc_pool/hamlet.txt | wc -l Note the number of times hamlet appears is the same as before # zpool export enc_pool # strings /tmp/pool2_file | grep -i hamlet | wc -l Note the word hamlet doesn't appear at all! As a said above this isn't indended as "proof" that ZFS does encryption properly just as a quick to do demo.

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  • IT Optimization Plan Pays Off For UK Retailer

    - by [email protected]
    I caught this article in ComputerworldUK yesterday. The headline talks about UK-based supermarket chain Morrisons is increasing their IT spend...OK, sounds good. Even nicer that Oracle is a big part of that. But what caught my eye were three things: 1) Morrison's truly has a long term strategy for IT. In this case, modernizing and optimizing how they use IT for business advantage. 2) Even in a tough economic climate, Morrison's views IT investments as contributing to and improving the bottom line. Specifically, "The investment in IT contributed to a 21 percent increase in Morrison's underlying profit.." 3) The phased, 3-year "Optimization Plan" took a holistic approach to their business--from CRM and Supply Chain systems to the underlying application infrastructure. On the infrastructure front, adopting a more flexible Service-Oriented Architecture enabled them to be more agile and adapt their business and Identity Management helped with sometimes mundane (but costly) issues like lost passwords and being able to document who has access to what. Things don't always turn out so rosy. And I know it was a long and difficult process...but it's nice to see a happy ending every once in a while.

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  • Nvidia 740M still not working after Bumblebee installation

    - by Jon
    first of all, I have checked a lot of similar topics, but I still can't get my laptop to use Nvidia 740M. So first things first. I have a laptop Asus X550V(i5-3230, 4gb RAM, Nvidia 740M + Intel HD4000). I installed Ubuntu 13.10 alongside Win8(preinstalled) and both systems are running without problems. However, I have problem with second graphic card(Nvidia 740M), as Ubuntu doesn't recognize it. I installed bumblebee with this tutorial https://wiki.ubuntu.com/Bumblebee#Installation, but I still get error "Cannot access secondary GPU" error when trying to run ''optirun Steam'' in terminal. Then I tried to do this: [ERROR]Cannot access secondary GPU - error: [XORG] (EE) No devices detected. you need to edit the /etc/bumblebee/xorg.conf.nvidia (or /etc/bumblebee/xorg.conf.nouveau if using the noveau driver) and specify the correct BusID by following the instructions therein. But with lspci / VGA i get only info about Intel 4000, but no Nvidia. When I type only lspci, I get the line for Nvidia 740M,but after I edit the config file I still get second card error. Also, in /etc/bumblebee/xorg.conf.nvidia there wasn't BusID or anything similar, so I just added the whole line in device section. As I sad, I tried a lot of things to get it working, avoiding this forum(as I din't want to bother people with some solutions possible), but alas!, I had to bother you. If there is a need for some additional info, just say, no problem at all. Thank you very much in advance. :)

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  • Graduate expectations versus reality

    - by Bobby Tables
    When choosing what we want to study, and do with our careers and lives, we all have some expectations of what it is going to be like. Now that I've been in the industry for almost a decade, I've been reflecting a bit on what I thought (back when I was studying Computer Science) programming working life was going to be like, and how it's actually turning out to be. My two biggest shocks (or should I say, broken expectations) by far are the sheer amount of maintenance work involved in software, and the overall lack of professionalism: Maintenance: At uni, we were all told that the majority of software work is maintenance of existing systems. So I knew to expect this in the abstract. But I never imagined exactly how overwhelming this would turn out to be. Perhaps it's something I mentally glazed over, and hoped I'd be building cool new stuff from scratch a lot more. But it really is the case that most jobs are overwhelmingly maintenance, bug fixing, and support oriented. Lack of professionalism: At uni, I always had the impression that commercial software work is very process-oriented and stringently engineered. I had images of ISO processes, reams of technical documentation, every feature and bug being strictly documented, and a generally professional environment. It came as a huge shock to realise that most software companies operate no differently to a team of students working on a large semester-long project. And I've worked in both the small agile hack shop, and the medium sized corporate enterprise. While I wouldn't say that it's always been outright "unprofessional", it definitely feels like the software industry (on the whole) is far from the strong engineering discipline that I expected it to be. Has anyone else had similar experiences to this? What are the ways in which your expectations of what our profession would be like were different to the reality?

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  • Be There: Tinkerforge/NetBeans Platform Integration Course

    - by Geertjan
    Tinkerforge is an electronic construction kit. It exposes a number of API bindings, including, of course, Java. The nice thing also is that Tinkerforge products are open source, both on the hardware and software levels, so that you can take their bases as a starting point for your own modifications. "The TinkerForge system is a set of pre-built electronics boards that are built in such a way that you can stack the boards (known as bricks), attach accessories (known as bricklets), and have your prototype and and running quickly. Unlike systems, such as the Arduino or Launchpad, the TinkerForge has to be attached to a computer and the computer does all of the work. With an easy set of application programming interfaces (APIs) available in C/C++, C#, Java, PHP, and Ruby, the system is easy to interface and program over USB in a snap." (from this useful article) Henning Krüp, who has arranged several NetBeans Platform Certified Training Courses in the past, in the Nordhorn/Lingen area in Germany, had the inspired idea to focus the next course on integration with Tinkerforge. In other words, the whole course will be focused on creating a standalone Java desktop application that leverages the NetBeans Platform to interact with Tinkerforge! Interested in joining the course or setting up something similar yourself? The course organized by Henning will be held from 19 to 21 September, as explained here, together with contact details.  If you'd like to organize a similar course at a location of your choosing, leave a comment at the end of this blog entry and we'll set something up together!

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  • Why are bugs responsible for big deficiencies in functionality given such low priority?

    - by keepitsimpleengineer
    Well, first of all, change is inevitable and mostly good. Furthermore attempts at simplifying the User Interface such as Gnome 3, Unity to make Linux more inclusive hold much promise, even though they adversely affect my style of working. Additionally, though now retired, I have worked with computers for 47 years, and though I do nothing serious for others now, I still do heavy duty things. 10.04 LTS is my big workstation, and I had three 10.10 systems for Mythtv, and one of which is further adapted for video & related. The Mythtv were 10.10 because of a dormant bug regarding installing to 10.04. My work habits consistently use dual monitors and compiz cube and 3D windows with the computing horsepower to support them. The dual monitors with separate X screens has been not been functional since 11.04, and cube/3D windows not functional in Unity, and with diminished functionality Gnome. There is a bug filed (after upgrade to 12.04 amd64 Gnome Classic not properly draw second screen) I have mitigated the situation some by switching to Xubuntu and eschewing Unity. The question that comes to mind is why this bug is not given more attention in that it nearly cuts functionality in half for more competent workstations. Sample workspace... Please know that I appreciate all the hard work, dedication require to pull off something as big as Ubuntu et al.

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  • Cloud Computing - just get started already!

    - by BuckWoody
    OK - you've been hearing about "cloud" (I really dislike that term, but whatever) for over two years. You've equated it with just throwing some VM's in some vendor's datacenter - which is certainly part of it, but not the whole story. There's a whole world of - wait for it - *coding* out there that you should be working on. If you're a developer, this is just a set of servers with operating systems and the runtime layer (like.NET, Java, PHP, etc.) that you can deploy code to and have it run. It can expand in a horizontal way, allowing massive - and I really, honestly mean massive, not just marketing talk kind of scale. We see this every day. If you're not a developer, well, now's the time to learn. Explore a little. Try it. We'll help you. There's a free conference you can attend in November, and you can sign up for it now. It's all on-line, and the tools you need to code are free. Put down Facebook and Twitter for a minute - go sign up. Learn. Do. :) See you there. http://www.windowsazureconf.net/

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  • Data migration - dangerous or essential?

    - by MRalwasser
    The software development department of my company is facing with the problem that data migrations are considered as potentially dangerous, especially for my managers. The background is that our customers are using a large amount of data with poor quality. The reasons for this is only partially related to our software quality, but rather to the history of the data: Most of them have been migrated from predecessor systems, some bugs caused (mostly business) inconsistencies in the data records or misentries by accident on the customer's side (which our software allowed by error). The most important counter-arguments from my managers are that faulty data may turn into even worse data, the data troubles may awake some managers at the customer and some processes on the customer's side may not work anymore because their processes somewhat adapted to our system. Personally, I consider data migrations as an integral part of the software development and that data migration can been seen to data what refactoring is to code. I think that data migration is an essential for creating software that evolves. Without it, we would have to create painful software which somewhat works around a bad data structure. I am asking you: What are your thoughts to data migration, especially for the real life cases and not only from a developer's perspecticve? Do you have any arguments against my managers opinions? How does your company deal with data migrations and the difficulties caused by them? Any other interesting thoughts which belongs to this topics?

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  • Studentworker - being a superhero?

    - by Niklas H
    A couple of weeks ago I got a new job as a studentworker for a webagency. The job is 15-20 hours of week. Even though I am new in the company, I feel right at home and I enjoy working with my co-workers. To start of with, I was assigned to work on an internal tool in the company, in order to learn their systems and their development platform. The deadline for this project is this week, and I am right on time. But today (wednesday at noon) I received an email from my boss, asking me to do a new project that has a deadline at friday morning. The new assignment alone will be hard to finish on time, and on top of that I need to finish the other assignment on time. My question is: How do I handle my boss expecting me to be a superhero? EDIT: I will talk to my boss about delaying one of the projects. But another problem is that the new assignment will be hard to do on time (friday morning). I didn't have a say on the deadline - I just got a mail telling me the deadline. I am new in the company and want to stay, but I don't want to start off on the wrong foot with the boss.

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