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Smart Clients/Orcas I am extremely pleased to see the .NET Framework (and Microsoft) finally gain the offline sync services that I have been talking about for quite a few years in my work at Groove and Adesso . You will be able to do synchronization from WinForms and WPF apps that you could do from Groove apps (in my case WinForms) 4 years ago and Adesso 2-3 years ago now. OR/M Excellent introduction to NHibernate here more in a little bit Currently listening to Tarkus by Emerson, Lake & Palmer on album Tarkus Technorati Tags: .NET , Orcas , Data , OR/M , NHibernate , Software Architecture , , TDD , Agile , Agile Development , Extreme Programming , CLR , .NET Framework , Click Once , Microsoft Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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This is it, the big 150! The first New and Notable was on May 19, 2003 , (my first post was March 29, 2002 ) and I paid homage to the master, "I have always admired Mike's ability to look at the world out there and put it all into one great post, The Daily Grind . While I can't pretend to have Mike's writing ability, I would like to start moving to something similar instead of multiple seperate posts." I wish I had the discipline of Mike because if I posted daily I would be well towards 1000 instead of 150-) but hey I'm pretty proud of my record. I love this community and in the last 25 years this community (and Microsoft) have been real good to me and my family. I hope that what I have been picking here has been of good use to the community to keep you informed on key .NET activities as well as the architectural and design side. Thus, I go forth and pick: Entity Framework, ADO.NET 3, Orcas, MVP Summit One of the best writers in the community today is certainly Jeremy Miller . His latest post, MVP Summit Recapped: Linq for Entities, MonoRail, and Shameless Name Dropping , is a fine example of why. In one post, he is able to write quite elequently on complex subjects like the subtle design flaws in Entity Framework 3 and why WF 4 will rock your world. He is able to take a technology, stick to his design principles and stand his ground, educating and helping all involved achieve something better than was there before. He certainly wasn't the only one of us doing that but his post really captures the core design principles of no infrastructure code in business logic classes. Infrastructure is Infrastructure, business logic is business logic. We want the same thing: No marker interfaces, no codegen, no partial classes. Just plain "PO" and support for the Unit of Work pattern. David Laribee also talks on this area and makes clear that its a vision thing that doesn't really compare to NHibernate which is just OR/M; it's a full Read More...
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I have been working with the Office Live Services Beta for some months now. They just went live with my site over the weekend (although I still have to work on the domain name transfer) and it looks pretty good! I have a new Header and Home Page design. I have added my How-To STS/Window Authentication with ADAM/AD, Roles in AzMan with WCF to the refurbished WCF page . I added a new Domain Driven Design page under Software Engineering . My Presentations, as always are here . Hey, what else am I going to do while I am waiting for my flight? I would like and appreciate any and all feedback as comments here. What's good? What's bad? Knowing my blog and its subjects, what would you like to see? Technorati Tags: .NET , Windows Communication Foundation , WCF , Software Architecture , INETA , MVP , .NET Framework 3 , Microsoft Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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This says it all. Technorati Tags: .NET , Agile , Agile Development , Extreme Programming , ORM , Data , Entity Framework , ADO.NET 3.0 , Orcas , MVP , Visual Studio , VSTS , Team System , Microsoft Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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Today, the "breakout" sessions begun. In other words, we started drilling down with the product groups; for me that is Solution Architect. Some of the sessions I can't even name as even the code words are not public but I did want to mention that we had a great session and discussion (on the present) with Jack Greenfield on "The Future of Software Factories and Q &A with Jack Greenfield." Leaving out the future, we had a great discussion on a topic I generated when I told Jack that although I buy the notion totally of Software Factories (we use WSSF, CAB, Smart Client Factory to mention just a few) I had a really hard time buying the notion of Software Product Lines as it really smacked to me of Big Design Up Front, something I abhor as an Agile Architect. The answer was a good one, revolving around the idea of harvesting best practices, frameworks, etc of Product #1, #2 and it doesn't have to be some huge heavyweight notion of designing the product line in advance. I think that's how I understood it. Technorati Tags: .NET , Software Factories , Software Architecture , MVP , Microsoft Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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Ah Saturday morning where we can sleep in, ah no wait...I have kids to wake me up at the crack of dawn... Software Architecture The PAG folks continue to deliver their goodness with their first weekly drop of the new version of the Smart Client Software Factory and they looked like they brought over some of the cool stuff from the Mobile version: What’s New In this drop, you have the first look at: • New Application Blocks. We have ported over four application blocks that were previously available as part of the Mobile Client Software Factory. We may refactor, remove, replace, this code in the future (we value your input), but we currently have the following: o Disconnected Agent Application Block. This application block provides management features for execution of Web services from occasionally connected smart clients. With a disconnected service agent, the device can maintain a queue of Web service requests when offline (disconnected) (emphasis mine) and then replay them when a connection to the server application becomes available. o Connection Monitor Application Block. This application block monitors and exposes the available connections and the associated networks. o Endpoint Catalog Application Block. This application block provides features to expose the physical addresses and other details of remote services. o Data Access Application Block. This application block provides support for SQL Server Compact Edition. This application block will be replaced when the factory migrates to the next version of Enterprise Library. Jeremy Miller continues his excellent posts and talks about something Steve and I approach in our architecture: Don't Let the Database Dictate Your Object Model . I have to admit to being dragged a bit by Steve into this approach with OR/M and dropping the whole data-centric database-out view I have had for many years. Also see his My Least Favorite Kind of Requirements Undocumented WCSF Feature: Global Exception Handling Udi tackles Can, or Read More...
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Architecture/SOA Blaine Wastell has posted that PAG planning an update of the Smart Client Software Factory to be released in late April of this year. They are encouraging feedback at http://www.codeplex.com/smartclient and enter critical items into the issue tracker ( http://www.codeplex.com/smartclient/WorkItem/List.... ). From where I sit, they have their Priority 1 stuff right with WPF Interoperability. We absolutely need to be able to move to WPF with the existing CAB/SCBAT infrastructure I have been listing posts on WS-RM and its implementation in WCF. Harry Pierson, has an autopost that builds on his recent epiphany about WCF and long running services. He speaks about his conversation with Shy and " At some point in the three years between March 2003 and February 2006, WS-RM went from being the enabler of long running services to "yet another misnamed WS-* protocol". And with it, WCF lost (never had?) the ability to support long running services (as I've written previously )." The main point is that it does not support RM-based durable messaging. As Harry says, "As I said before, lack of support for WS-RM based durable messaging isn't that big a deal. As long as you understand WCF's sweet spot - the current version's sweet spot anyway - and don't try and make it be something it's not, you should be fine. Furthermore, Shy mentions the need for an "interoperable Queued Messaging specification" and wrote that it's something he "expect that we will get to it in the near future". Here's hoping that spec is less flexible than WS-ReliableMessaging." CLR/Tools/Agile/TDD The most indispensable tool in the .NET universe, Reflector, has gone through a big update to V5! As Jamie states , "This is a significant update with lots of refinements and new features. Perhaps most significantly it includes support for C# 3.0 language features such as LINQ query expressions, lambda expressions and extension methods. See my screencast about using Reflector 5.0 from VS Orcas." He also Read More...
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In a post on January 25th , I said, "I posted yesterday that we had shipped our Enterprise Collateral Management solution based on our new architecture. As I said, we still have a lot more to do ." I provided a concise list of the methodologies, technologies and tools that we used in our 14 month cycle. To update where we are now, it will be necessary for me to give a little more context. First, when I mention "our company", we are actually a Division exclusively devoted to Collateral Management. This division, in turn is part of a much larger worldwide company that has at least 6 more financial sector products dealing with other aspects of managing risk. That company then, in turn is part of a huge Ratings company. The rest of the products are (mostly) integrated into one suite that we sell. Ours is not. One reason is that the various products have been organized into self-contained product groups. That means that we had our own development, marketing, sales, product and management for just Collateral Management. Five or six weeks ago, our company went through a rather large reorganization that aligned things by a global R&D, global Marketing, etc. I think this is an extremely good thing. Our product is now "owned" by R&D which also owns all the other products that are part of the suite and otherwise and we are detached from product so we can focus on development. We can also look at integrating into the suite and bi-directional learning. One consequence of this is now instead of my boss reporting to a VP of Collateral Management, he reports to a Senior Director in R&D who owns a product out of our large offices in Manhattan. The cool thing is that Josh Madden is a 20 year+ veteran developer/architect like me who has done great things in the Financial area for companies like Reuters. He gets development. The other cool thing is that his other product group also uses a lot of Agile techniques and greatly appreciates our total XP environment. One more thing: Read More...
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Data/ADO.NET Orcas Two from the ADO.NET team: Entity Client and Nulls - LINQ to DataSets Part 3 Software Architecture/SOA/CAB Udi answers, Can or should SOA be implemented without Web Services? David Chappell on The Three Faces of SOA Eric Newcomer: WS-* vs. REST is not the question Another architect with a chronicle of How CAN and TDD helps doing better designs WCF/CardSpace Richard Turner gives an insightful report on RSA2007 especially on the "demo showed Wachovia 's website running on Corillian 's online banking platform using Arcot Systems ' security engine to generate managed cards and process token requests." Corrillian and Wachovia's work will be important for all of this in this sector as more and more backs embrace CardSpace and Identity management. We are seeing a lot of movement in this area. Jorgen provides some great links on Interoperability with WCF . This is an area that I am becoming more involved with Java systems communicating with our WCF Services. Dr. Nick continues with More Poison Message Handling Tomas on Writing a WCF Transport Channel - Part 1 Agile Architecture Uncertain Planning Nick talks about The minimum amount of architecture needed for Test Driven Design . .NET Framework 3/WF .NET Framework 3.0 training kit for WF, WCF and CardSpace [via Mike ] .NET 3.0 Middleware Technologies Day: Third Incarnation David Chappell: Why Workflow Matters WF, WCF and CardSpace training materials posted Technorati Tags: .NET , Smart Client , PAG , CAB , Software Architecture , Windows Communication Foundation , WCF , Windows Workflow , WF , Agile Architecture , TDD , .NET Framework 3 , ADO.NET , Orcas , Microsoft I'm listening to Street Life by Roxy Music on the album Stranded (Remastered) Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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Found some time to blog. Smart Client/UI Architecture V2 of the User Interface Process Application Block (UIPAB) is out from PAG [via Mike ]. I must confess to being confused on how this is different than CAB as "designed to abstract the control flow and state management out of the user interface layer into a user interface process layer," which CAB does with MVP as well until I saw. "helps you write generic code for the control flow and state management for different applications types (for example, Web and Windows) and helps manage user's tasks in complex scenarios." So which do you use in Smart Clients and why? Software Design/DDD As I have stated our Architecture reflects a strong, "proper" DDD Layer . Teammate Steve, is also a big believer and we have both lost focus a bit on it as we have been swamped with other things. His post is a good reminder to check out the experience reports on the DDD site. One reader once said I was using buzzwords. I think not. Especially in a large Financial Collateral application it is vitally important to use the UbiquitousLanguage of the actual Collateral banking domain that the analysts use and design a business layer reflecting that. And yeah, I'm astonished how many .NET developers have never even heard of the fundamental DDD patterns when I talk about SOA/Architecture for INETA around the country Data/OR/M One thing that goes well with a true domain layer is an OR/M implementing the Domain Mapper pattern . The ADO.NET team (along with some bloggers), which lately found religion, talks about the Entity Data Model 101 - Part 2 WCF/Indigo Confused about all the many WCF configuration options? Tomas has an excellent post on understanding the admittedly complex WCF configuration schema. In return, you get fine-grained control Technorati Tags: .NET , Smart Client , PAG , CAB , Software Architecture , Windows Communication Foundation , WCF , Microsoft I'm listening to Paranoid Android by Radiohead on the album Edinburgh, Meadowbank Read More...
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WPF/Avalon One thing I had forgotten about in Avalon is the XAML Browser Apps (XBAPS) sandboxed in the browser. Karen Corby has two posts here on features and the second on security levels . [Found via Lester's WPF Blog ] One of the things I am looking at architecturally for 2007, is rationalizing the different code bases and development frameworks for UI (i.e. the grand convergence of the smart client and browser client). So in that, I would like to rationalize our WinForms/CAB code base and our soon to possibly be ASP.NET projects and have one WCF code base. So the question is; is it XBAPS or WPF/e? Walt reminds us all that there is no Cider goodness in the Orcas drop and " In the meantime, use the beta version of Expression Blend, to layout your controls. The Visual Studio 2005 extensions are very rough around the edges ." Yup. Sahil on WPF Freeable Objects Windows Workflow I talked about that WCF and WF are not at all currently integrated and how that will change in the Orcas timeframe. Microsoft has put up a sample showing how to use WCF from WF. [via Thom ] K. Scott Allan has a nice piece on Managing the Workflow Runtime from ASP.NET . WCF/Indigo Dominick Baier has an interesting post on ASP.NET Control for CardSpace WCF RSS/ATOM Endpoints for dasBlog Customizing the Metadata Resolver Architecture Welcome to the January 15, 2007 edition of Carnival of Enterprise Architecture. Technorati Tags: .NET , Windows Communication Foundation , Windows Presentation Foundation , WCF , WPF , Windows Workflow , Software Architecture , Microsoft Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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A N&N from Brussels Belgium where I am up in the middle of the night (again I wake up at 3AM!) with my sleep hours all screwed up. I am enjoying my week here nonetheless. I don't know quite what to make of Brussels. Some parts remind me quite a bit of Paris but there is this weird mix of "modern" glass buildings although the style is a bit "older" than such US buildings. I don't know, I'm jet lagged and probably making no sense. The (potential) customer we are visiting is actually quite large > 3,000 employees most in one large building and I have been working hard on a "High Level Technical Document." Its' certainly some BDUF but this is a large SaS type architecture across 3 data centers that has many Enterprise issues (levels of Failover, SLAs, SQL Server Hot Mirroring, Perimeter Zone Security, etc. to deal with and get right. Anyhow, the food is good and there is a lot of espresso-). Architecture The Open Group (the TOGAF guys) has scheduled what appears to be an interesting conference on Enterprise Architecture and SOA in San Diego [via Architecture Blog ] Avalon/WCF Karsten gives an update on the North Face In Store Explorer WCF application that floored many of us at PDC05 and has now been deployed . He also reminds, "Note that the white paper written about this application is still relevant and worth reading. The code samples all work just fine on the final bits and have some useful code as far as state management, image montages and a 3D carousel." My good friend and fellow Smart Client track speaker, Walt Ritscher has started a new WCF blog at http://wpfwonderland.wordpress.com - Subscribed! Check out XAML to IL Explained Part 1 , WPF/e Example - Game of Life WCF/Indigo/SOA Nicholas Allan has his best of 2006 (and what a year it was for him/them!). Also check out Zen Faults Other Ted Neward has his predictions for 2007 , of which I mostly agree with all of them but one of the best qualities of Ted Read More...
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I am SO busy with INETA trips and tons to do at work. Here is what I have stored up for the last week or so. WCF/SOA/Workflow/WF Tomas blogs about something I face every day in WCF with WCF ServiceHost Failures and IDisposable with "The "don't call Close()/Dispose() if faulted" behavior that ServiceHost requires does not work well with IDisposable; it demands a behavior different from the standard IDisposable pattern." We're having a lot of issues with dealing with failures and what to do with them but Tomas definetly states a fundamental problem. Tomas has also WCF, WF and BizTalk Sample Posted with some interesting stuff!! MTOM Interoperability between Oracle Application Server and Windows Communication Foundation Part1: From WCF to Oracle Jesus Rodriguez as well, " I am happy to see this progress: " The Web Services Interoperability Organization (WS-I) announced the publication of three new Working Group Drafts : the Basic Profile 1.2, Basic Security Profile 1.1 and the Reliable Secure Profile 1.0 Usage Scenarios. Advancement of these documents to Working Group Draft status is an invitation to the Web services community to provide technical feedback." I could just list every single post that Mike Taulty writes on WF; they are all that good! In particular, WF and Versioning , MetaStorm and the Workflow Designer , Little Workflow Foundation Sample I could and have done the same with "Nicholas Allen's" posts on Indigo: ListenUriBindingElement , Creating Faults Part 1, and Part 2 CLR How to avoid assembly loads , and Getting the list of loaded assemblies from Richard Lander James Higgs talks about Garbage Collection and the IDisposable interface WPF/Avalon Karsten has an awesome Avalon demo - "The Woodgrove Finance Application is a great demo of how WPF can be used to create better data visualization, in this case for financial data. I've posted the source code -- there are some good nuggets in here worth exploring." Introducing the XML Assembly Generator Data V1 of Data Read More...
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In comments to my post about our Agile project entering ship mode, a reader asked for more information about our use of CAB. While I intend to write more about OB and performance, here is a bunch of posts about CAB and our use of it during the last 14 months: Occasionally Connected Service Oriented Smart Clients New and Notable 93 New and Notable 94 Pair Programming at 33,000 Feet CAB Smart Clients in an Agile World Part 1 CAB Smart Clients in an Agile World Part 2 CAB, SCBAT and GAT New Drop of SCBAT Truckin' Along with Iteration 19 and Indigo/Contract First with Services BAT MSDN Architecture Webcast: Extending Microsoft patterns & practices ObjectBuilder Outlook Bar Workspace for CAB! How To: STS/Windows Authentication with ADAM/AD, Roles in AzMan with WCF Connecting up AzMan Roles with WCF Behaviors and CAB CTP and Diagnosing WCF, CAB and other Exceptions New and Notable 110 New and Notable 116 The Cabana Project and CAB Our Agile Project Goes into Ship/Performance Mode Technorati Tags: Software Development , Software Architecture , Agile , Agile Development , Extreme Programming , Smart Clients , CAB , SCBAT , OCC , MVP , Microsoft Share this post: Email it! | bookmark it! | digg it! | reddit! | kick it! Read More...
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So, I have been writing a bunch of posts over the last 14 months, how we have been using Agile, actually full Extreme Programming practices to build a multi-million dollar Enterprise Software platform and application for the banking sector. We certainly have seriously stressed Extreme Programming/Agile techniques to their limits as this is not a small piece of software, but a large Enterprise solution that gets sold into the top banks in the world. We certainly have proven that you can use Extreme Programming/Agile techniques to build a 1.8 million dollar Enterprise product family. have talked about being an Agile Architect and why it's neccessary, how we went to CTP in July , the Process we use, our tools , and even our failings . So, after 48 Iterations we finished all the functionality we had agreed with Business was necessary for a "Phase I" delivery of our Next Generation/V5.0 product, as our Next Generation architecture will span an ambitious set of goals and products on top of this platform. Business and Development agreed together that we would stop and start a three week Iteration of fixing bugs in our backlog, testing and eating our dog food. In Extreme Programming, you are really not supposed to carry over bugs out of the Iteration but this was extremely hard with one week Iterations. We turned out very well overall as all the testing found just over 100 total bugs for 14 months work which is an order of magnitude less bugs than our previous product development techniques. In addition, we have over 1,000 unit tests and the code is well factored, clean and maintanable. The best part is the whole team understands it, not individuals. I actually haven't written about it but I have been working as Agile Architect the last few months on the next phase and not as part of the Iterations directly. These involve a whole lot of Workflow, Reporting and much more. Anyhow, I made a stand with my management the last 3 weeks and insisted that I code and Read More...
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