10 May, 2012. It was a Thursday. I’m going to give you a phrase of power. Use it wisely. Ready? I want to hear what you have to say. If you know a developer who ought to be presenting at conferences ...

1 June, 2016. It was a Wednesday. In many of my applications, the UI and API gravitate towards task-oriented UIs. Instead of “editing an invoice”, I “approve an invoice”, with specialized models, ...

13 May, 2014. It was a Tuesday. Domain events are one of the final patterns needed to create a fully encapsulated domain model – one that fully enforces a consistency boundary and invariants. The need ...

21 August, 2008. It was a Thursday. Services are first-class citizens of the domain model. When concepts of the model would distort any Entity or Value Object, a Service is appropriate. From Evans’ ...

12 August, 2008. It was a Tuesday. A question came up on the ALT.NET message board asking whether Value Objects should be used across service boundaries. Of course, the conversation took several ...

24 May, 2011. It was a Tuesday. I’ve built a few dozen security mechanisms in my career. Unfortunately, I kept getting it wrong, hence the need to keep building them. Over the years, though, I learned ...

13 October, 2016. It was a Thursday. A while ago, I blogged about using MediatR to build a processing pipeline for requests in the form of commands and queries in your application. MediatR is a ...

13 August, 2011. It was a Saturday. One of the biggest roadblocks with getting automated browser tests (we use WatiN) running in a Windows Continuous Integration environment is figuring out how to let ...

5 May, 2015. It was a Tuesday. CQRS is a simple pattern – two objects for command/queries where once there was one. These days just about every system I build utilizes CQRS, as it’s a natural ...

17 February, 2012. It was a Friday. If you write any code in JavaScript then you’ve probably used closures, but do you actually understand what they are and how they work? Taking the time to ...

20 November, 2012. It was a Tuesday. I’ve always been intrigued by the idea of stand up desks. Not because of potential health benefits or anything like that, but in general I get a bit tired of ...

29 April, 2016. It was a Friday. A common question I get asked, especially around a vertical slice architecture, is where does validation happen? If you’re doing DDD, you might want to put validation ...