Tag | Architecture Posts

For good or bad, Microsoft’s Entity Framework (EF) has become one of the most widely used ORM tools out there. While some may state that it's not among the better ones (or that it's not even a real ORM), it’s definitely the most convenient one: its Visual Studio integration and consequently its integration with the MS SQL Server database is unparalleled. This is especially relevant to people who haven’t used the concept of object-relational mapping before - there's almost no initial learning curve ...
The Distinguished Field is often seen as the weaker of the two types of Fields when handling Fields in BizTalk. After all, the Distinguished Field can’t be used as a filter on a message, and it’s slower than its big brother the Promoted Field. Well, today I’m here to dispel the myth of the wimpy Distinguished Field and place in the pantheon of power that equals, and in some ways exceeds the Promoted Field. MYTH: Getting the value of a Distinguished Field requires loading the entire message into memory. ...
· For the last decade, the majority of my dev work has leveraged the .NET Framework for construction of information systems. However, my interest has lain in numerical computing. · Is it possible to have an increasingly higher level of abstraction and at the same time achieve underlying high performance computing? The prevailing winds say no: C# is aimed at productivity, and C++ is for performance. Garbage collection was great, but do we still need it with the availability of smart pointers? Would ...
UPDATED Jul 3rd 2013: Added Art of Unit Testing Version 2 UPDATED Apr 11th 2013: Added Instant TFS 2012 and Project Server 2012 Integration How-to UPDATED Jan 12th 2013: Added Prof TFS Server 2012, TFS 2012 Starter, Pro ALM with VS 2012 and VS 2012 Cookbook UPDATED Dec 8th 2011: Added Kanban book by David Anderson “Send me a list of books to read” – that is what I am often asked. No more, as this list is an answer to those request! I have divided it into different subject areas, and each area hold ...
I cut my DBA teeth on IBM's DB2 UDB EEE (enough acronyms) back in the 90's. I have always appreciated the scalability that is available with a MPP architecture. So a couple of years ago I was excited to hear that SQL Server was going to have a MPP architecture available. Now I am at SQLPass Summit 2011 and seeing the PDW (Parallel Data Warehouse) and the hardware offerings by Dell and HP to scale that up and out. However, I was disappointed to learn that this technology does not extend to Analysis ...
Error: There is a temporary failure. Please retry later. (The request failed, because you exceeded quota limits for this hour. If you experience this often, upgrade your subscription to a higher one). Additional Information : Throttling due to resource : Connections." If you Google this issue, you only find different blogs and forums where geeks discussing this issue and giving suggestion to each other. Even when I counter this issue I also review my application architecture and I re-write the Azure ...
When we talk about UI Architecture, a common theme of Model-View-Something continues to come up. The question is, however, what is the something? Am I working with Model-View-Controller? Model-View-Presenter? Something else? The purpose of this blog is to explore the difference between MVC / MVP to give you an understanding of what they mean to accomplish, what are the differences and what situations best cater to each. Does it really matter? Does the difference really matter between MVC / MVP? Well, ...
Very interesting article if you want to understand how the routing and the whole architecture works in MVC framework. There are a lot more post to come from Simon.

An Introduction to ASP.NET MVC Extensibility

Control Objectives for Information and Related Technologies (COBIT)is a governance framework widely used by many enterprises to supports information and technology assets, defining process, areas and controls to successful delivery of IT Governance practices. First Question: "What is IT Governance?" IT governance is the responsibility of executives and the board of directors, and consists of the leadership, organisational structures and processes that ensure that the enterprise’s IT sustains and ...
So its been a few weeks since Microsoft’s Build conference, where they unveiled Windows 8 and shared what the developer story will be. I had blogged about Day 1 of the conference here, but I wanted to share some video I took with my colleagues Winson Woo and Jim Russell as my thoughts now that a bit of time has lapsed. So first, a video captured right after we got our hands on the Samsung tablet given to all attendees. Yes the tablet is nice, but this conference is all about the OS. Windows 8 as ...
The nice thing about unintended changes is that you never think it could happen until you get bitten by a nasty change. Microsoft did publish a complete list of breaking changes here which is complete to my knowledge. But although the intentional changes are listed there are side effects which can cause you to search for hours your (non) fault. One change was to create a new GAC for .NET 4 assemblies to prevent breaking applications which rely on the structure of the GAC introduced with .NET 2.0. ...
Something that took me a while to learn is how to be balanced when deciding on how to architect an application. Since at my current job I was thrown into a hybrid Architect/Developer position due to the small size of the company and my team, I didn’t really have any experience with doing it. After almost a year at it I decided to look back and see what I have done and how I can learn from mistakes and successes. Remember Why You Were Hired Why did your company hire you as a developer? If you answered ...
C++ is a very powerful language. Well written native C++ code can perform much better than managed languages like C# and Java due to optimizations that the managed systems are not able to perform during run-time compilation (if this is done at all, that is). This is great for developers who work on gaming technology for instance. For people concerned with game logic, performance isn’t necessarily priority number one, but productivity and the ability to express oneself without too much head banging. ...
All seats were taken at the September IASA Chapter meeting. I opened the meeting with a short introduction of the officers and members of the board of directors as well as mentioning the benefits and opportunities of an IASA membership. Quent Herschelman followed with an introduction of the IASA educational programs and announced the exciting news that the chapter will host an IASA core training in January 2012. You can find more details and can sign up for the training on the IASA global web page. ...
Matt Hidinger gave a high energy presentation around Onion Architecture for this month’s meeting. It was great seeing the history of this architectural approach including its connection to Jeffrey Palermo. Of course drinking from a fire hose takes a while to digest. Get the code and slides here. Please join us for our next meeting and get involved in the Chicago Information Architecture community. del.icio.us Tags: CITAG,Chicago Information Technology Architects Group,Jeffrey Palermo,Matt Hidinger,Onion ...
Last week I attended Build Windows conference and have been spending a considerable amount of time thinking how things have changed for developers. The initial reaction from most people was “Oh My God” with all the focus on WinRT and Metro UI and little mention of .Net, Silverlight, WPF, etc. You could almost feel the equal parts panic and excitement racing through the crowd. I was fortunate enough to have brought along my “Keep Calm and Carry On” T-Shirt to Anaheim. I wore it on Wednesday as it ...

Last week, Microsoft held their long awaited Build Windows (or simply "Build") conference in Anaheim CA. About 5000 people packed the convention center to discover the latest version of the Windows operation system: Windows 8.

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Technorati Tags: Windows 8 Just like many thousands of geeks around the world I downloaded the Windows 8 preview from Microsoft’s website: http://msdn.microsoft.com/e... and spent some time playing with it. Being an embedded developer I don’t have any powerful machine lying unused in my office, so I installed Windows 8 on a very low-spec machine, a 1.6GHz Atom with 1GB of RAM and a 120GB HD (taken from an old mac). First of all I must say that I’m pretty impressed by the responsiveness ...
Anyone that’s managing an enterprise IT with aging or outdated client/server systems is starting to feel the heat. Soon, their systems and applications will be obsolete and unsupported. At the same time, the industry as whole is seeking the fastest gateway to the latest .NET, HTML5 and mobile deployments including SaaS models. Right about now, there will be a knock on your door with team members offering their advice as to what you should do to ‘keep up’ with the latest trends and supported architectures. ...
What is Tulsa TechFest? It is a technical conference with currently the broadest topics in the United States, maybe the world. There are tracks covering everything enterprise architecture, software/web development, databases, project management, data security and this year for the first time - End Users, Social Media, Mobile, Enterpreneurs, Managers, BI & Reporting, Virtualization and Mentoring. It's primary focus is to provide training/teaching sessions that are immediately benefical to the ...
I was recently discussing some common flaws in application architecture with David Adsit (codeobsession.blogspot.com/) about wisdom in development. Have you ever looked at a system and seen somethings done that were either technically or procedurally difficult, and thought, "wow, it must have taken a lot of work and a lot of proficiency to get that done" but then said to yourself, "but doing it was a bad idea". One of the things that experience teaches that you don't get to pick up from simply gaining ...
In the world of custom web application development a critical component of our success is the hosting environment and services. We can choose to deploy our web applications using 3rd party hosting providers such as GoDaddy.com, Rackspace, DiscountASP.NET, or another provider, or we can choose to deploy to on premise servers either virtual or physical. In either case the web application must be serviced up to consumers by a web server software such as Internet Information Service (IIS), which is included ...
Just recently there was a great talk held by Herb Sutter at the C++ and Beyond conference. You can see the whole presentation at Channel 9. So why does C++ really matter anymore? All this time we’ve been talking about managed languages (Java, C#, Visual Basic.NET, the list goes on) increasing the productivity of development and being really the holy grail of computing where we don’t have to focus on memory allocation or really knowing anything about the underlying platform, for that matter. All this ...
We are getting rolling for the fall at the Chicago IT Architects Group. This month we will have Matt Hidinger presenting on the topic of Onion Architecture. Please join us as we discuss the decomposition of architectures by registering below. Register here del.icio.us Tags: Chicago Information Technology Architects Group,CITAG,Matt Hidinger ...
My Epiphany – Part 1 After reading Continuous Delivery, by Jez Humble and David Farley, I couldn’t help but think “wow! this is the key to becoming truly agile!”. I submit that may be a little overstated, but nonetheless by minor epiphany has grown into an outright passion for enabling rapid development AND delivery of small bite-sized pieces of applications. As we’re all well immersed into the Agile way these days (or, at least, we’re all trying!!), our common goal should be to provide customers ...
This post will focus upon introducing the concepts of AI algorithms, and is summerized from "Artificial Intelligence, A Modern Approach" – by Norvig and Russell - 3rd edition - http://aima.cs.berkeley.edu/ . Overview General Definition: study of agents that receive percepts from the environment and perform actions Weak AI hypothesis - assertion that software could simulate thought-like behavior - Can machines think – is considered an ill-defined question (does a submarine swim?). Strong AI hypothesis ...
More and more companies are turning to companies who host cloud applications such as SalesForce. I may be mistaken, but I thought we used to call these ASPs (Application Service Providers). Whatever we call them they are the latest trend in IT services especially in larger corporations. So what does this trend mean for those of us who design, build and integrate systems? It means a new set of challenges, considerations and opportunities. The more you know about these areas going into a project the ...
This blog will help you prepare for an upcoming release of SQL Azure that will offer support for Data Federation. While no date has been provided for this feature, I was able to test an early preview and compiled a few lessons learned that can be shared publicly. Note however that certain items could not be shared in this blog because they are considered NDA material; as a result, you should expect additional guidance in future posts when the public Beta will be made available. What is Data Federation? ...
I have a need for a highly responsive web page that must at least appear to be "pushed" information from the server as it happens, much like you'd see with an HTTP protocol based chat window. The client will utilize JavaScript, and will use JQuery and its UI plugins, and will use its AJAX support to call the requests that will only return when there is data to be "pushed". I know HTML 5 includes support for WebSockets, but I feel it is too soon to rely on them, as the spec is not yet finished and ...
CE 7 introduces a new boot loader framework, BLDR (platform\common\src\common... Some people like its powerful and flexbility, others may feel its too complicate as a boot loader framework. Despite to the favor, it is already there; so let's take a look at its features. Unlike the previous BL framwork (CE7 still provides it in platform\common\src\common\... is a monolithic library, the new framework has more architecture structure. It not only defines main body but also provides rich components, ...
Erik Russell and Giles Marino were our speakers for the June 2011 IASA South East Florida Chapter meeting. Attendees filled all available seats at the Microsoft office conference room where the event was held. This highlights the high interest in Enterprise Architecture as a career track and chartered project role. Also in attendance were our Board of Directors and Alex Funkhouser, President, Sherlock Technology. Rainer Habermann, Chapter President, kicked off the meeting by introducing our speakers ...
IASA South East Florida Chapter Meeting 06/21/2011 Meet 6:00PM Present. 6:30 PM Giles Marino and Erik Russell Architecture Case Study Sign up for this exciting event at: http://www.fladotnet.com/ Posted: Rainer Habermann, President IASA South East Florida Chapter ...
Architectural descisions is a part of the software development process that often gets lost over time - at least most of them do. Yes we do make diagrams and solution description, but what about the descisions that were just natural to make? The desciosions that were just obvious? What happens to those in the future - try to ask yourself why you chose a decorator pattern over a facade five years ago - can you remember? We all make descisions everyday - some are small and some are big. A lot of the ...
It is no big news that whatever the architecture you plan and implement, soon or later you'll start to see some code "bad smells". In the early phase of implementation you might do some team training and explain how your developer team should write code using the planned architecture and design (patterns). Despite this effort, you cannot expect people to just follow your implementation recommendations every time. At first, you might consider using gated-checkins or CI builds with VS code analysis. ...
In the month of May we met again for the .NET Usergroup, and I presented some introductory material into software design and architecture. The talk was aimed at looking into new ways of software design and managing of complex software components by using domain driven approach. I talked about best practices, coding patterns and DDD, TDD and DataObjects.NET (http://dataobjects.net). I advocated for best practices presented by the best practices team http://msdn.microsoft.com/e... ...
Workflow 4 State Machine – Distributed Tracking Visualization · Disclaimer: This post requires an understanding of WF 4.0.1 , WCF and WPF. · Before I explain the how, look at the following image for the what: I am debugging a REMOTE workflow STATEMACHINE instance, and from tracking information sent from server, I am able to highlight the current state in my client! Visual Workflow Tracking Sample – a Big Ball of Mud · Workflow 4 provides the System.Activities.Presentat... class which ...
This morning I was reading through some of my usual blogs and came across some very interesting and updated information relating to BizTalk performance and hyper-threading. The two source pages are: http://appfabriccat.com/201... http://msdn.microsoft.com/e... If you take a look at these pages, you can see that the recommendations on hyper-threading and the BizTalk platform ...
Has the cloud backlash started? Stallman's cloudburst when he railed against the dangers of allowing our data to be locked up offsite and online (http://www.guardian.co.uk/... was perhaps predictable, but he is not the only voice to have suggested that cloud vendors are overselling the benefits and ignoring the risks. On the one hand we have some very large corporations (Amazon, Google and Microsoft in particular) pushing the advantages of migrating ...
Kevin Williamson has a great post on the overall flow of things from the point of publishing of your package up on the Windows Azure Developer Portal to Run(). These are good things to know as many times you need to inject steps, tasks, context at various stages of your service instance’s lifetime. http://blogs.msdn.com/b/kwi... Windows Azure Role Architecture - Windows Azure - Troubleshooting & Debugging - Site Home - MSDN Blogs ...
TechEd 2011 got us talking about the next Visual Studio version called vNext. The update adds multiple small and subtle performance improvements as well as major new ALM tools. These tools focus on helping developers work in the so called Virtuous Cycle, which consists of development and operation in a continuous loop. The major tools concentrate on requirements gathering, agile planning, stakeholder feedback, test coverage analysis and much much more. You can see the full session by Cameron Skinner ...
“Design Patterns 100? is a prerequisite for .NET Developers. (Part 5 – Excerpts from July 2010 – PhillyNJ.NET Presentation) Continuing our discussion from Part-4 we ask. What are the “Gang of Four” (GoF) Behavioral Patterns and where can we find them in the .NET Framework? Chain of Responsibility Pattern – A way of passing a request between a chain of objects Command Pattern – Encapsulate a command request as an object Interpreter Pattern – A way to include language elements in a program Iterator ...
“Design Patterns 100? is a prerequisite for .NET Developers. (Part 4 – Excerpts from July 2010 – PhillyNJ.NET Presentation) Continuing our discussion from Part-3 we ask. What are the “Gang of Four” (GoF) Structural Patterns and where can we find them in the .NET Framework? Let’s look at a list of the Strutural Patterns as defined by the GoF. Adapter Pattern – is used to match interfaces of different classes Bridge Pattern – is used to separate an object’s interface from its implementation Composite ...
8:39 AM Supporting the Exchange and Lync communities. Exchange 2010 News Certification News: Microsoft Certified Master:Exchange 2010 Overview of the Cert FAQ Resources: Microsoft Exchange team blog Gary Siepser’s PowerShell examples Bhargav Shukla’s blog Jedi Hammond’s blog (exchangemaster.wordpress.com) Mike Pfeiffer’s blog (mikepfeiffer.net) C7 Solutions team blog (c7solutions.com) Tim McMichael’s blog Mike Lagase’s blog Pasted from <http://www.microsoft.co... ...
Materials for the PHILLNJ.NET Presentation – August 24, 2010 On August 24, 2010 I demonstrated the “Repository Pattern” which is a Enterprise Architecture Design Pattern and the foundation of Domain Driven Design (DDD) which is primary in loose coupling your applications design. At this presentation I demonstrated the use of the “Repository Pattern” combined with other subjects such as Unit Testing, Custom Mocking with LINQ & Generics. I also gave out a limited number of CD with the code and ...
Let’s focus on Exam 70-583 this time. This exam is PRO: Designing and Developing Windows Azure Applications. This guide itself will be a different approach to preparing for the exam itself. Instead of just taking the individual topics, let’s review the topic in as much information as we can. Here is a set of resources to get started. This is the topic I will be presenting at TechEd North America 2011, so expect more information after 5/18/2011. Here is the link to the session: http://northamerica.msteche... ...
There was already a version of MVVM Light on Nuget before. However the old version did not support Windows Phone 7. This is now corrected. Also the new version now adds a ViewModelLocator to your project and includes it in App.xaml. What is NuGet? NuGet is a mechanism allowing to add packages (assemblies, source code…) to an existing project. All versions of MVVM Light are supported (WPF3.5, WPF4, Silverlight 3, Silverlight 4, Windows Phone 7). In order to install NuGet and learn more about this ...
Windows Azure Cloud Computing Scenarios Notes: (http://wabcdemos.cloudapp.... Things to consider for architecture: Does It improve bottomline? http://azureroi.cloudapp.net/ http://www.microsoft.com/wi... Does it improve strategy? Independent scaling break down components into the smallest unit When increasing capacity, cost doesn't go up much, when scaling down, capacity doesn't suffer a huge drop ...
In this Issue: David Catuhe, Paul Sheriff, Bill Steele, Den Delimarsky, Bill Burrows, Doug Rathbone, Matthias Shapiro, Jason Alderman, Jessica Fosler, John Garland, WindowsPhoneGeek, Jesse Liberty, and Jeff Prosise. Above the Fold: Silverlight: "Silverlight 5’s New and Improved Threading Architecture" Jeff Prosise WP7: "Silverlight Game Development webcasts" Bill Steele Shoutouts: Jesse Liberty has a short post up describing some of the features we can expect with the Tooling in Mango From SilverlightCream.com: ...
Sometimes, the way that LINQ to Twitter materializes queries into entities isn’t immediately clear. It’s easy to get confused until you see the patterns or make a correlation between the Twitter API results and their representations as LINQ to Twitter entities. In this post, I’ll explain some of the logic behind the design of LINQ to Twitter entities and demonstrate an example of one of the more oddly designed entity types, Search. Note: They'll be talking about MVC3 during multiple sessions at Tech-Ed. ...
Check out the Top Five most popular news at SilverlightShow for April 18-24, 2011. Here are the top 5 news on SilverlightShow for last week: New SilverlightShow Webinar: Getting started with the Silverlight 5 Beta Silverlight 5 – Elevated Trust In-Browser Windows Phone 7 and WCF Don’t Play Nicely Silverlight 5’s New and Improved Threading Architecture Using Custom Markup Extensions in Silverlight 5 Visit and bookmark SilverlightShow. Stay in the 'Light ...