Architecture

Entity Services are services that are centered around an Entity. For example, a CustomerService or a ProductService. Most times these services focus on data and CRUD operations. These services can cause low cohesion and in turn cause high coupling. Instead, focus on capabilities of services, the data encapsulated and owned by the service. Focusing on capabilities will increase cohesion and lower coupling. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Entity Services I believe that the default way that systems are built and… Read More »AVOID Entity Services by Focusing on Capabilities

How do you persist your Aggregate using Entity Framework? Using a Repository to get/set your Aggregate Root? I see a lot of examples that bend over backward to make their Entities expose behaviors while try to encapsulate data. It doesn’t need to be difficult. And if you’re not using an ORM, what’s a way that you can capture the changes made by the Aggregate Root so that you can persist them writing SQL? YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Entity Framework… Read More »Aggregate (Root) Design: Behavior & Data

Are you tired of changing one part of a system, only to have another part break? Write stable code! Writing stable code can seem impossible. Trying to keep things from breaking can be a nightmare if you’re unaware of how your system is coupled. Understanding Afferent & Efferent coupling can guide you into insights about your software architecture & design. YouTube Check out my YouTube channel where I post all kinds of content that accompanies my posts including this video showing everything that is in this post. Coupling To illustrate coupling, I’m going to talk about it at a project/package/boundary level. You… Read More »Write Stable Code using Coupling Metrics