Community Server

For some time I've been caught between a rock and a hard place. In the project I'm working on I've got all sorts of constraints getting in my way. My left arm works with a big vendor product that has the capability to boil the ocean and an API to prove it, while my right builds a sensible domain model and an anti-corruption layer using a home ...

This is a petit I wrote for a book that didn't make it onto the bookshelves. It's a little different form what I usually write - I hope you'll enjoy it. “I don't get it.”, Nelson stood with his back against the whiteboard. -“This new technology should be much faster than a system older than me!” Nelson had been a ...

In both my “Better Domain Driven Design” and “Want SOA? Throw out your Web Services!” talks I’ve referred to the “Onion Architecture” as a mean for controlling your dependencies. The term was coined by Jeffery Palermo in his series of blog posts on it.. This style of design has come about as a ...

Back in September I gave a talk entitled “Better Domain Driven Design” at the JavaZone conference in Oslo. The recording of that talk is now available on the JavaZone web site. Just click the “Presentation” link on this page to watch it. Unfortunately my super cool opening titles aren’t in the video because the frame ...

''Code without tests is bad code. It doesn't matter how well written it is; it doesn't matter how pretty or object-oriented or well-encapsulated it is is. With tests, we can change the behavior of our code quickly and verifiably. Without them, we really don't know if our code is getting better or worse.''Michael C. Feathers Traditionally the term ...

Last night I was unable to sleep, so I started reading Domain Specific Development with Visual Studio DSL Tools and I was immediately reminded of my rant about software factories. Just like with the software factories provided by the Patterns and Practices team, the examples in the book are bad examples of what you should use a visual DSL ...

A while ago I posted a rant about software factories and maintainability. This post has grown popular, especially after Ayende refered to it in a post, and I have gotten quite a few requests to post the code for my alternative implementation of the Coho Winery membership service. The code is now available for download here.

While reading Scott Rosenberg's ''Dreaming in Code'', I was reminded of a reference to William Shakespeare's ''A Midsummer Night's Dream'' Jim McCarthy's ''Dynamics of Software Development''; Theses, The Duke of Athens opens the first scene in the fifth act with the following: ''Lovers and madmen have such seething brains,Such shaping ...

Many software projects experience disappointing productivity. Often productivity problems are inherent to the way we build software. Developers often find themselves churning out unproductive, non-business related code as a consequence of inappropriate architectural choices. Common example is the use of verbose data transfer objects in ...

A while ago Frans Bourma wrote about a mind-opening experience which he experienced during a talk Dr. Kersten Krab Thourup gave  on performance metrics. Kersten spoke about using AOP to instrument an application during development, and keeping the profiling capability in depolyed software to cater for profiling ''in-flight'' ...