The Value of Value Types
In domain driven design (DDD) we talk a lot about entities; objects that have identity and lifetimes that typically outlive their values. e.g. An account lives longer than the email address, name, …
Architecture
Build Analytics - better development understanding
Working with small teams is a lot of fun and I find it fairly easy to keep track of what is happening with version control and build systems. Errors and failures don’t come up that often and when they …
Service IoC containers
How can we get the benefits of IoC containers at a higher level - the services that we deploy into environments? Typical service tiers are implemented with a fronting load balancer that allocates …
Team Distribution Models and Conways Law
If Conway’s law applies the how we set up and organise teams should either be aligned to the architecture of the applicaiton or system being developed or application/system architecture will shift to …
I can't believe I missed this!
Just over 20 years ago Jack W. Reeves wrote an article in the C++ Journal entitled “What is Software Design?” and I missed it. Not only that but no one thought to point out that I was missing a very …
Encapsulating Databases
Small systems grow with success. As these systems grow they often take on more and more functionality either directly into the main system component or into sub-systems. As the systems grow in …
Insulating against failure using Caching Reverse Proxies
Reverse proxies have been around for a very long time and depending on your application either interesting additions or a key element to your architecture. Despite their long history I was recently …
Testing - what to test when
After tweeting that I wanted to have suggestions for blog entries I got a single reply asking for my thoughts on DAO and unit testing – essentially asking should DAO be unit tested. The problem with …
Post Redirect Get web interaction pattern
Post/Redirect/Get or Redirect after Post is an HTTP interaction pattern that can be used when developing web applications. I have been mentioning it quite a few times in my consulting work and thought …