Windows Communication Foundation (WCF) is Microsoft’s next generation platform for distributed systems. Along with Windows Presentation Foundation (WPF) and Windows Workflow Foundation (WWF), WCF (code-named “Indigo”) is part of the WinFX platform, now officially named as .NET Framework 3.0. With such a diverse array of distributed technologies already floating around, each one with a distinct… Read More

The Dependency Inversion Principle deals with how to correctly design classes such that their dependency on one another causes the least amount of work in case of a change. Uncle Bob’s definition of DIP states: High-level modules should not depend on low-level modules. Both should depend on abstractions. Abstractions should not depend on details. Details… Read More

Another fundemental principle of object-oriented software design is the Open-Closed Principle. According to Uncle Bob (Robert Martin), this principle states that: Software entities (classes, modules, functions, etc.) should beopen for extension, but closed for modification. Essentially, what this means is that software’s design should be such that it’s behavior can be modified by extending the… Read More