software design videos and tutorials
Gang of Four (GOF) design patterns were quite centered on OOP languages. Now that we have dynamic and functional languages on the JVM, there are quite a few other patterns that come in handy with these capabilities. This presentation explores patterns that enable us to make better use of closures …
Much of Domain-Driven Design (DDD) is all about object-oriented design. The challenge with elegant designs is that they all start out ugly. But our domain objects don’t need to stay as anemic, data-centric property bags. With a small set of well-honed refactoring techniques, we can turn an ugly domain model …
Code Contracts provide a language-agnostic way to express coding assumptions in .NET programs. The contracts take the form of preconditions, postconditions, and object invariants. Contracts act as checked documentation of your external and internal APIs. The contracts are used to improve testing via runtime checking, enable static contract verification, and …
In software engineering, aspects are concerns that cut across multiple modules. They can lead to the common problems of concern tangling and scattering: concern tangling is where software concerns are not represented independently of each other; concern scattering is where a software concern is represented in multiple remote places in …
