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• Speaking at SPTechCon Boston 2012

  - by Brian Jackett

  I will be speaking at SPTechCon Boston 2012.  This will be my 3rd time speaking at SPTechCon and 4th time attending.  The conference has steadily been growing over the past few years and is one of the biggest non-Microsoft run conferences for SharePoint in the US.  I’ll be presenting two topics which I have given before but this time around with some updated content.  Registration is currently open and you can save $200 (on top of the current early bird discount of $400) by using the code "JACKETT” during registration.  I highly recommend joining for valuable learning and networking.   Where: SPTechCon Boston 2012 Title: PowerShell for the SharePoint 2010 Developer Audience and Level: Developer, Intermediate Abstract: PowerShell is not just for SharePoint 2010 administrators. Developers also get access to a wide range of functionality with PowerShell. In this session we will dive into using PowerShell with the .Net framework, web services, and native SharePoint commandlets. We will also cover some of the more intermediate to advanced techniques available within PowerShell that will improve your work efficiency. Not only will you learn how to automate your work but also learn ways to prototype solutions faster. This session is targeted to developers and assumes a basic familiarity with PowerShell. Slides and Code download: coming soon   Title: Integrating Line-of-Business Applications with SharePoint 2010 Audience and Level: Developer, Intermediate Abstract: One of the biggest value-adding enhancements in SharePoint 2010 is the Business Connectivity Services (BCS). In this session, we will overview the BCS, demonstrate connecting line-of-business applications and external systems to SharePoint through external content types, and walk through surfacing that data with external lists. This session is targeted at developers. No prior experience with the BCS is required, but a basic understanding of SharePoint Designer 2010 and SharePoint solutions is suggested. Slides and Code download: coming soon         -Frog Out

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• Oracle University Seminars April/May/June 2012

  - by A&C Redaktion

  Normal 0 21 false false false DE X-NONE X-NONE MicrosoftInternetExplorer4 /* Style Definitions */ table.MsoNormalTable {mso-style-name:"Table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-priority:99; mso-style-qformat:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"Times New Roman","serif";} Oracle University's Expert Seminars are exclusive events delivered by top experts with years of experience in working with Oracle products. The seminars topics cover the breadth of the Oracle portfolio and are aimed at helping you to get the most of your Oracle products and to stay connected with new technologies. We currently have the following events scheduled: RAC Performance Tuning Online with Arup Nanda - 30 Apr 2012 Understanding Explain Plans & Index Utilization Online with Dan Hotka - 8-9 May 2012 Writing Optimal SQL & Troubleshooting & Tuning with Jonathan Lewis, Düsseldorf, 9-10 May 2012 Flashback Techniques in Oracle11g with Carl Dudley, München, 14 May 2012 Minimize Downtime with Rolling Upgrade using Data Guard with Uwe Hesse, München, 16 May 2012 Enterprise Business Intelligence 11g Advanced Development Online with Mark Rittman – 24-25 May Mastering Backup & Recovery with Francisco Munoz Alvarez, Düsseldorf, 29-30 May 2012 Real World Java EE 6 – Re-thinking Best Practice with Adam Bien, München, 15 Jun 2012

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• Book Review: Professional WCF 4

  - by Sam Abraham

  My Investigation of WCF internals have set the right stage to revisit Professional WCF 4 by Pablo Cibraro, Kurt Claeys, Fabio Cozzolino and Johann Grabner. In this book, the authors dive deep into all aspects of the WCF API in a reading targeted towards intermediate and advanced developers. Book quality so far as presentation, code completeness, content clarity and organization was superb. The authors have taken a hands-on approach to thoroughly covering the WCF 4.0 API with three chapters totaling 100+ pages completely dedicated to business cases with downloadable source code readily available. Chapter 1 outlines SOA best-practice considerations. Next three chapters take a top-down approach to the WCF API covering service and data contracts, bindings, clients, instancing and Workflow Services followed by another carefully-thought three chapters covering the security options available via the WCF API. In conclusion, Professional WCF 4.0 provides a thorough coverage of the WCF API and is a recommended read for anybody looking to reinforce their understanding of the various features available in the WCF framework. Many thanks to the Wiley/Wrox User Group Program for their support of our West Palm Beach Developers’ Group.   All the best, --Sam

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• Reading Open Source Projects

  - by Hossein

  About my programming knowledge: I have basic knowledge of programming. Have never worked in a team project. Have done, only, a couple of small solo projects. Problem: Consider a typical open source project. We want to know about the project, so that we can contribute, test it, just out of curiosity, etc. The documentations do not describe the code architecture, usually, so RTFM(!) wouldn't apply here. They usually tend to describe how to use the software, not how it is designed. Mailing Lists in big projects are very crowded. Tens of e-mails are send in just an hour. also, following the mailing list to know the project is like understanding a film when you have arrived late, when half of the film is gone or even worse. Obviously, the code is not like a novel. So, you can't start from downloading the source code and just "start from the first page and so on"! Question: How should one understand open source project? What are the steps to do in an open source project, to understand how the whole thing works and get into speed with the "under the hood"?

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• Painting with pixel shaders

  - by Gustavo Maciel

  I have an almost full understanding of how 2D Lighting works, saw this post and was tempted to try implementing this in HLSL. I planned to paint each of the layers with shaders, and then, combine them just drawing one on top of another, or just pass the 3 textures to the shader and getting a better way to combine them. Working almost as planned, but I got a little question in the matter. I'm drawing each layer this way: GraphicsDevice.SetRenderTarget(lighting); GraphicsDevice.Clear(Color.Transparent); //... Setup shader SpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, SamplerState.LinearClamp, DepthStencilState.None, RasterizerState.CullNone, lightingShader); SpriteBatch.Draw(texture, fullscreen, Color.White); SpriteBatch.End(); GraphicsDevice.SetRenderTarget(darkMask); GraphicsDevice.Clear(Color.Transparent); //... Setup shader SpriteBatch.Begin(SpriteSortMode.Immediate, BlendState.AlphaBlend, SamplerState.LinearClamp, DepthStencilState.None, RasterizerState.CullNone, darkMaskShader); SpriteBatch.Draw(texture, fullscreen, Color.White); SpriteBatch.End(); Where lightingShader and darkMaskShader are shaders that, with parameters (view and proj matrices, light pos, color and range, etc) generate a texture meant to be that layer. It works fine, but I'm not sure if drawing a transparent quad on top of a transparent render target is the best way of doing it. Because I actually just need the position and params. Concluding: Can I paint a texture with shaders without having to clear it and then draw a transparent texture on top of it?

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• What is the reason for section 1 of LGPL and what is the implication for section 9.

  - by Roland Schulz

  Why was section 1 added to LGPLv3? My understanding of section 3&4 is, one can convey the combined work under any license and with no requirements from GPLv3 (besides those explicitly stated as requirements in LGPLv3 3&4). Given that, why is section 1 necessary. Wouldn't that sections 3&4 by themselves already imply anyhow what section 1 explicitly states? I assume that I'm missing something and section 1 isn't redundant. Assuming that, does this have implications for other sections in GPLv3? E.g. does conveying a covered work under sections 3&4 fall under the patent clause of section 10 of GPLv3? Why does section 1 not also state an exception for section 10? Put another way. Is the Eigen FAQ correct by stating: LGPL requires [for header only libraries] pretty much the same as the 2-clause BSD license. It it true that for conveying object files including material from LGPLv3 headers no GPLv3 patent clauses apply?

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• What to include in metadata?

  - by shyam

  I'm wondering if there are any general guidelines or best practices regarding when to split data into a metadata format, as oppose to directly embedding it within the data. (Specific example below). My understanding of metadata is that it describes data (without the need to actually look at the data), allowing for data to be quickly search/filtered for easy access. Let's take for example a simple 3D model format. The actual data file itself is a binary file containing vertices and colors. Things like creation date, modified data and author name would be things that describe the binary data, so I would say these belong as metadata (outside of the binary file). But what if the application had no need to search or filter by these fields? Would it be acceptable to embed these fields directly into the binary data itself? Could they be duplicated in both the binary data and the meta data, or would this be considered bad practice? What about more ambiguous fields such as the model name, which could be considered part of the data itself, but also as data describing the binary data?... How do you decide which data to embed in the actual binary file, as opposed to separating into a more flexible metadata format? Thanks!

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• I know fundamental programming. But how do I get started in game development now?

  - by Rohan Menon

  I'm a 20 year old programming student. I know fundamental programming in BASIC, C, C++ and JAVA. What I wanted to ask is, where do I go from here? Are there any books that the community can mention that will help me develop a game or at least learn game development? I've had a lot of ideas and really want to make some sort of prototype to see if I'm suited for the industry. I really don't mind learning any new languages but I need to know what I should begin with. A good book that will help with a little more understanding as I go up will be very helpful. Maybe a tutorial to develop some basic 2D games like a side-scroller, snake or pocket tanks in an easy to understand SDK? I know that to get some credit under your belt, you need to be able to make a few games on your own. Also, what platform should I start on? The PC, iOS or Android (as an introduction) for now. I don't want to get into high level game design just yet. Just something a bit basic to help out in future development. Anything pointing me in the right direction will be really really helpful. Edit: Also, I want to say that I'm looking towards this from a game designer's point of view more than a game programmer. I want suggestions on any SDKs or easy to use programs I can use to understand game design. Then delve deeper into the programming after that. Not as employment but as developing your own games (for now).

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• Register Now, Free Webinar! Driving Self-Service Learning with UPK Knowledge Center

  - by Kathryn Lustenberger

  UPK Proficiency Forum  Driving Self-Service Learning with UPK Knowledge Center July 16, at 11 am Pacific Join Oracle University for the next UPK Proficiency Forum on July 16, at 11 am Pacific. Beth Renstrom and Kathryn Lustenberger from UPK Product Management at Oracle will present an exciting session on "Driving Self-Service Learning with UPK Knowledge Center. Knowledge Center is a powerful, web-based knowledge repository that delivers an out-of-the-box deployment method for UPK content, enables extensive tracking and reporting, and can serve as content repository for UPK and non-UPK content. Hear how your organization can use Knowledge Center to centralize both UPK and non-UPK assets to provide self-service, role-based, curriculum-style learning. Understand how Knowledge Center can be used to deploy a collaborative user and expert environment where users can turn knowledge into productivity, ensure on-going user competency, and measure organizational readiness across your organization. You will walk away from this session with a better understanding of Oracle’s User Productivity Professional; Knowledge Center and all the benefits it has to offer your organization. You won’t want to miss this Free seminar! Attendance is limited. Register Now!

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• Why do some people hate Dart? [closed]

  - by Hassan

  First, I'd like to note that this question is not intended to compare two languages or technologies, but is only asking about criticisms aimed at a language. I've always thought it a good idea to somehow get rid of Javascript. It works, but it's just so messy. I think many will agree with me there. And that's how I interpreted Google's release of Dart. It seems to me like a very good alternative to Javascript. Now, it looks like some are not very happy that Google has released this new language. Take a look at this Wikipedia page to see what I'm talking about. If you don't feel like reading it, I'll tell you now that some seem to think that Dart is similar to Microsoft's VBScript, in that it only works on Microsoft's browsers. This goes against the web's openness. But it's my understanding that Dart can be compiled to Javascript, which will allow it to be run on any modern browser (as the Wikipedia article also states). So my question is: are these criticisms valid? Is there a real fear that Google is trying to control the web's front-end to be more compatible with its browser?

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• Question about mipmaps + anisotropic filtering

  - by Telanor

  I'm a bit confused here and maybe someone can explain this to me. I created a simple test texture for my terrain which is nothing more than a solid green color with a black grid overlayed on top of it. If I look at the terrain in the distance with mipmapping on and linear filtering, the grid lines become blurry fairly quickly and further back the grid is pretty much invisible. With these settings, I don't get any moire patterns at all. If I turn on anisotropic filtering, however, the higher the anisotropic level, the more the terrain looks like it did with without mipmapping. The lines are much crisper nearby but in the distance I start to see terrible moire patterns. My understanding was that mipmapping is supposed to get rid of moire patterns. I've always had anisotropic filtering on in every game I play and I've never noticed any moire patterns as a result, so I don't understand why it's happening in my game. I am using logarithmic depth however, could that be causing any problems? And if it is, how do I resolve it? I've created my sampler state like so (I'm using slimdx): ssa = SamplerState.FromDescription(Engine.Device, new SamplerDescription { AddressU = TextureAddressMode.Clamp, AddressV = TextureAddressMode.Clamp, AddressW = TextureAddressMode.Clamp, Filter = Filter.Anisotropic, MaximumAnisotropy = anisotropicLevel, MinimumLod = 0, MaximumLod = float.MaxValue });

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• Efficient mapping layout in 2D side-scroller, and collisions between character and the world

  - by Jack

  I haven't touched Visual Studio for a couple months now, but I was playing a game from the '90s toady and had an epiphany: I was looking for something what i didn't need, and I wasn't using what I knew correctly. One of those realizations was collision, so let me tell you a bit about my project that I was working on. The project's graphics looks like Mario or Dangerous Dave, etc., you get the idea - old-school pixels. So anyway I remember trying to think of something else than AABB for character form, but I couldn't think of anything. Perhaps I could get a suggestion for this? Another thing is the world - I don't want it to be just linear world, I want mountains, etc.. My idea is to use triangles, and no idea yet what to do if I want just part of the cube, say 3/4 or 2/4 or whatever. Hard-coding such things seems inefficient. P.S. I am not looking at the precision level offered by Box2D. Actually I remember trying to implement it at first, but I failed as my understanding of C++ wasn't advanced enough, as it'll be mentioned below. P.P.S. I am programming in C++, and I haven't done it for a couple months now. I have no means of testing it either, as my PC is broken down, and this one can barely run games from late '90s, not to speak about a compiler or a program with inefficient resource management... I am also not an expert (obviously), I don't even know if I can consider myself an average programmer. In short, I am simply curious about my thoughts and my past experience when programming the game. I may come back to it when my PC is fixed, I'm already filling a note about these things.

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• Whois status "pending delete" with expiration date in November 2011???

  - by Sylver

  A friend of mine is in the process of being scammed by a domain registrar and I am trying to sort out the mess. However I could use a hand understanding some of the details. He paid for 2 years of domain name registration on 6 november 2009. The whois record reads: Domain ID:XXXXXXXXXX Domain Name:XXXXXXXXX.ORG Created On:06-Nov-2009 09:23:12 UTC Last Updated On:17-Dec-2010 00:15:10 UTC Expiration Date:06-Nov-2011 09:23:12 UTC Sponsoring Registrar:OnlineNIC Inc. (R64-LROR) Status:CLIENT TRANSFER PROHIBITED Status:HOLD Status:PENDING DELETE SCHEDULED FOR RELEASE Registrant ID:ONLC-XXXXXXX-X Registrant Name:My friend's name ... Registrant Email:Old email The registrar charged a renewal fee a week ago and is now asking an extra $150 to "reclaim" the domain name, even though the domain name is apparently still in my friend's name and it looks like there is still another 10 months before the expiry date. The expiration date on the WhoIs record looks right (Nov 2011), so I don't understand why the domain status says "PENDING DELETE SCHEDULED FOR RELEASE". Can someone explain me better what the deal is and explain what I need to do get the domain name transfered to a more honest registrar? I already have a registrar for my own domain names, been using them for 10 years without problems, so I know where to transfer the domain names to, I just don't know how to proceed.

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• IIM Calcutta &ndash; EPBM 14 &ndash; Campus Visit &ndash; Day 2 &ndash; IS_Strategy and Internationa

  - by Ram Shankar Yadav

  Hey Guys~ So the second day of the week starts, and we were all set for coming sessions on : - IS & Strategy and, - Changing Geo-politics & Business Environment We did our daily chores, rushed for breakfast, and reached Auditorioum, almost on time. IS & Strategy session was quite informative and interactive, and the prof. gave lot of examples, and it really gives us solid understanding by relating things with examples. Then goes the lunch, but the IS session over shoot for 15 minutes so our idea of taking a nap in lunch was not working out, but anyway we did our lunch and tried to sleep for 10-15 minutes. We got back and session on International Business started. Frankly, it’s a great topic, but we had tough time to be attentive, and it was hard to keep ourselves awake :P Anyhow the session came to an end, and we went to Library, and roamed around campus. Got back, had dinner, and went for a night walk, and ice-cream party. Lastly we did went to the platform inside the lake, and had a gag session, got back and  did “ITC eChaupal” case study. We have planned to visit Kali Mandir tomorrow, so I’ve to sleep for few hours…GN! Stay tuned for more… ram :)

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• Improve Customer Experience with Real-Time Scheduling

  - by ruth.donohue

  Recently, my husband rearranged his busy work schedule so that he could stay home an entire afternoon to wait for the alarm company to reset the password to our alarm system, only to discover at the end of the afternoon that the field service rep wasn’t going to be able to make the appointment after all. And, the company asked him to reschedule and block off time for another afternoon. Needless to say, my husband wasn’t happy with that experience. Unfortunately, customer experiences like this happen every day. As a business, you can’t afford these types of encounters. It’s too easy for your customers to turn to one of your competitors once they’ve reached the point of frustration. Customer experience and customer loyalty are more important than ever. So how can you prevent something like this from occurring? With the newly available Siebel Field Service Integration with Oracle Real-Time Scheduler, your service organization can: Create cost-optimized plans and schedules to improve operating efficiencies Deliver more accurate ETA’s and shorten appointment windows Minimize the impact of in-day events such as delays on site, sickness, poor weather conditions, and vehicle breakdowns Rather than requiring them to wait for an entire afternoon, imagine asking customers to be available for only an hour. And being able to commit to that time by working around unforeseen events and understanding the impact of delays or re-routings before they become customer issues. What would your customer experience and customer satisfaction be like then? Learn more about the Siebel Field Service Integration with Oracle Real-Time Scheduler: Register for and attend the upcoming webcast on Thursday, March 10th at 8:30 AM Pacific Time Read the press release, data sheet, and solution brief Visit the Siebel Field Service webpage

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• Which web framework or technologies would suit me?

  - by Suraj Chandran

  Hi, I had been working on desktop apps and server side(non web) for some time and now I am diving in to web first time. I plan to write a scalable enterprise level app. I have worked with Java, Javascript, Jquery etc. but I absolutely hate jsp. So is there any framework that focuses on developing enterprise level web apps without jsp. I liked Wicket's approach, but I think there is a little lack of support of dynamic html in it and jquery(yes i looked at wiquery). Also I feel making wicket apps scalable would take some sweat. Can Spring MVC, Struts2 etc. help me make with this with just using say Java, JavaScript, and JQuery. Or are there any other options for me like Wicket. Please do forgive if anything above looks insane, I am still working on my understanding with enterprise web apps. NOTE: If you think that I should take a different direction or approach, please do suggest!

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• Exadata X3 Sales/Pre-Sales/Support Resell Rights Enablement Day

  - by mseika

  Dear Partner, Avnet and Oracle would like to invite you to a FREE Exadata X3 Sales/Pre-Sales/Support Resell Rights Enablement Day which is taking place on Wednesday 16th January 2013 at the Oracle London City offices in Moorgate. We will give you the opportunity to get an in depth understanding of how hardware and software is engineered to work together to create the power and scalability of Exadata. The session will focus on Oracle Exadata fundamentals, features, components and capabilities. The event will be a day long and will give you the opportunity to put any questions to the presenters that will help you understand how to spot an Exadata opportunity and position Exadata in an opportunity.   Register Now Register now or call our Hotline on 01925 856999. When Wednesday 16th January 2013 Duration: 9.30am to 17.00pm Where Oracle Corporation UK Ltd. One South PlaceLondon EC2M 2RB. For directionsplease see thelocation map.   Cost No charge Contact Us Avnet Technology Solutions LimitedClarity House103 Dalton AvenueBirchwood ParkWarringtonWA3 6YBUKT: 01925 856900 F: 01925 856901 E: [email protected] Or find us online:Avnet websiteLinkedInTwitterFacebook

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• Beyond S&OP: Integrated Business Planning

  - by Paul Homchick

  In most corporations, planning is done at the department level — leaving disconnects and gaps across different departments. Finance sets revenue and profit goals with minimum validation from Manufacturing that the company has the resources, material, capacity, or demand to reach these goals. On the operations side, Manufacturing is developing plans to balance demand and supply but seldom knows if the resulting "plan" will meet the budgets on which the company's revenue and profit goals are based. The Sales department agrees to quotas that meet Finance's revenue goals without a complete understanding of what manufacturing can deliver. Integrated Business Planning (IBP) bridges these gaps in corporate planning systems. Integrated Business Planning integrates the financial planning provided by EPM systems with operations planning provided by Sales and Operations Planning solutions. This means that revenue goals and budgets are validated against a bottom-up operating plan, and that the operating plan is reconciled against financial goals. When detailed changes are made to the operations plan, planners can immediately see the big picture impact of the changes. IBP also addresses one the CFO's big concerns—the reliability of the revenue forecast. Operating plans are updated daily or weekly from a precise forecast based on current market conditions. These updated plans are then made available so that financial analysts are working with data that best represents what is going to happen - not what they projected would happen based on last quarter's data. For a discussion in more depth, see my article: Improve Reliability of Financial Forecasts with Integrated Business Planning in Supply & Demand Chain-Executive Magazine.

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• Beyond S&OP: Integrated Business Planning

  - by Paul Homchick

  In most corporations, planning is done at the department level — leaving disconnects and gaps across different departments. Finance sets revenue and profit goals with minimum validation from Manufacturing that the company has the resources, material, capacity, or demand to reach these goals. On the operations side, Manufacturing is developing plans to balance demand and supply but seldom knows if the resulting "plan" will meet the budgets on which the company's revenue and profit goals are based. The Sales department agrees to quotas that meet Finance's revenue goals without a complete understanding of what manufacturing can deliver. Integrated Business Planning (IBP) bridges these gaps in corporate planning systems. Integrated Business Planning integrates the financial planning provided by EPM systems with operations planning provided by Sales and Operations Planning solutions. This means that revenue goals and budgets are validated against a bottom-up operating plan, and that the operating plan is reconciled against financial goals. When detailed changes are made to the operations plan, planners can immediately see the big picture impact of the changes. IBP also addresses one the CFO's big concerns—the reliability of the revenue forecast. Operating plans are updated daily or weekly from a precise forecast based on current market conditions. These updated plans are then made available so that financial analysts are working with data that best represents what is going to happen - not what they projected would happen based on last quarter's data. For a discussion in more depth, see my article: Improve Reliability of Financial Forecasts with Integrated Business Planning in Supply & Demand Chain-Executive Magazine.

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• Will a polled event system cause lag for a server?

  - by Milo

  I'm using a library called ENet. It is a reliable UDP library. The way it works is a polled event system like this: ENetEvent event; /* Wait up to 1000 milliseconds for an event. */ while (enet_host_service (client, & event, 1000) > 0) { switch (event.type) { case ENET_EVENT_TYPE_CONNECT: printf ("A new client connected from %x:%u.\n", event.peer -> address.host, event.peer -> address.port); /* Store any relevant client information here. */ event.peer -> data = "Client information"; break; case ENET_EVENT_TYPE_RECEIVE: printf ("A packet of length %u containing %s was received from %s on channel %u.\n", event.packet -> dataLength, event.packet -> data, event.peer -> data, event.channelID); /* Clean up the packet now that we're done using it. */ enet_packet_destroy (event.packet); break; case ENET_EVENT_TYPE_DISCONNECT: printf ("%s disconected.\n", event.peer -> data); /* Reset the peer's client information. */ event.peer -> data = NULL; } } It waits up to 1000 milliseconds for an event. If I'm hosting say 75 event driven card games and a lobby on the same thread as this code, will it cause any problems. If my understanding is correct, the process will simply sleep until there is an event, when there is one, it will process the event then come back here where potentially 5 or so events have queued up since so enet_host_services would return right away and not cause lag. I have been advised not to use multiple threads, will that be alright like this? Thanks

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• UML Diagrams of Multi-Threaded Applications

  - by PersonalNexus

  For single-threaded applications I like to use class diagrams to get an overview of the architecture of that application. This type of diagram, however, hasn’t been very helpful when trying to understand heavily multi-threaded/concurrent applications, for instance because different instances of a class "live" on different threads (meaning accessing an instance is save only from the one thread it lives on). Consequently, associations between classes don’t necessarily mean that I can call methods on those objects, but instead I have to make that call on the target object's thread. Most literature I have dug up on the topic such as Designing Concurrent, Distributed, and Real-Time Applications with UML by Hassan Gomaa had some nice ideas, such as drawing thread boundaries into object diagrams, but overall seemed a bit too academic and wordy to be really useful. I don’t want to use these diagrams as a high-level view of the problem domain, but rather as a detailed description of my classes/objects, their interactions and the limitations due to thread-boundaries I mentioned above. I would therefore like to know: What types of diagrams have you found to be most helpful in understanding multi-threaded applications? Are there any extensions to classic UML that take into account the peculiarities of multi-threaded applications, e.g. through annotations illustrating that some objects might live in a certain thread while others have no thread-affinity; some fields of an object may be read from any thread, but written to only from one; some methods are synchronous and return a result while others are asynchronous that get requests queued up and return results for instance via a callback on a different thread.

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• Installation experiences with NDepend under Win7/64 with restricted user permissions

  - by Marko Apfel

  Today Patrick gives me a new license for his static code analysis tool NDepend for my fresh machine with Win7/64. This platform is new for me, so some things are different to Win XP. Maybe that till yet some of these things are not well enough understandanded from me. So i stepped in some traps. Here are my notes to get NDepend running. Download of NDepend Professional Edition from http://www.ndepend.com/NDependDownload.aspx   Extracted to c:\program files (x86)\NDepend   Started NDepend.Install.VisualStudioAddin.exe this failed with Okay – sounds plausible.   Copy NDependProLicense.xml to this folder   Next try with NDepend.Install.VisualStudioAddin.exe opens the integration dialog   Registering in Visual Studio failed with   Manually unblock as described (first solution hint)   and here comes my largest understanding problem. After unblocking this file   and closing this dialog the next opening shows the blocking again: Why? So the same error during integration pops up.   Okay – tried the second solution hint with copying folders Copy all to a full accessable folder under c:\temp\   Now the installation works   looks good   copying the folders back to c:\program files (x86)\NDepend   starting Visual Studio failed with     Okay – copying the folder to a private application folder c:\users\apf\My Applications\NDepend   Installing again   Now Visual Studio runs and NDepend is integrated Nevertheless my machine is only used by me, i prefer “all user”-installations. The described way works sadly only for my account.

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• Requesting quality analysis test cases up front of implementation/change

  - by arin

  Recently I have been assigned to work on a major requirement that falls between a change request and an improvement. The previous implementation was done (badly) by a senior developer that left the company and did so without leaving a trace of documentation. Here were my initial steps to approach this problem: Considering that the release date was fast approaching and there was no time for slip-ups, I initially asked if the requirement was a "must have". Since the requirement helped the product significantly in terms of usability, the answer was "If possible, yes". Knowing the wide-spread use and affects of this requirement, had it come to a point where the requirement could not be finished prior to release, I asked if it would be a viable option to thrash the current state and revert back to the state prior to the ex-senior implementation. The answer was "Most likely: no". Understanding that the requirement was coming from the higher management, and due to the complexity of it, I asked all usability test cases to be written prior to the implementation (by QA) and given to me, to aid me in the comprehension of this task. This was a big no-no for the folks at the management as they failed to understand this approach. Knowing that I had to insist on my request and the responsibility of this requirement, I insisted and have fallen out of favor with some of the folks, leaving me in a state of "baffledness". Basically, I was trying a test-driven approach to a high-risk, high-complexity and must-have requirement and trying to be safe rather than sorry. Is this approach wrong or have I approached it incorrectly? P.S.: The change request/improvement was cancelled and the implementation was reverted back to the prior state due to the complexity of the problem and lack of time. This only happened after a 2 hour long meeting with other seniors in order to convince the aforementioned folks.

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• MATLAB: Best fitness vs mean fitness, initial range

  - by Sa Ta

  Based on the example of Rastrigin's function. At the plot function, if I chose 'best fitness', on the same graph 'mean fitness' will also be plotted. I understand well about 'best fitness' whereby it plots the best function value in each generation versus iteration number. It will reach value zero after some times. I don't understand about 'mean fitness'in the graph plotted. What do those 'mean fitness' values mean? How does the 'mean fitness' graph help to understand Rastrigin's function? What are the meaning of the term initial population, initial score and initial range? I wish to have a better understanding of these terms. The default value for initial range is [0,1]. Does it mean that 0 is the lower bound (lb) and 1 is the upper bound (ub)? Do these values interfere with the lb and ub values I set in the constraints? I try to better understand about lb and ub. If my lb is 0 and ub is 5, does it mean that my final point values will be within 0 and 5? If I know the lb and ub for my problem is between 0 and 5, do I just set the initial range as [0,5] at all times and may I assume that this is the best option for initial range, and I need not try it with any other values?

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• Can you say "Architect?"

  - by Bob Rhubart

  Photo by Jennifer Ortiz In his article, It's Time To Occupy IT, AIIM CEO and president John Mancini examines the evolution of "Systems of Engagement," the social technologies that are transforming how customers and employees relate to and interact with companies. Surviving the disruption that transformation entails is a matter of when, rather than if, a given organization embraces the change. But as Mancini points out, that transformation will require a "new breed" of IT professional: "While addressing this kind of challenge requires technical skills, it also requires process and customer acumen more often found in the business than in our IT departments. It requires a new type of information professional, whose expertise includes technical and domain knowledge, but who also has an idea of how the pieces of a process that spans the worlds of Systems of Record and Systems of Engagement should fit together. Gartner estimates that the demand for this new breed of information professional will grow by 50 percent by 2015." Though Mancini makes no reference to the title, the skills he desribes are those of the IT architect. While the specific definition of the role remains fodder for seemingly endless discussion and debate on various social networks and forums, the fact remains that the skills required for success in the evolving world of IT will increasingly involve a deep understanding of how all the pieces fit together.

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