Is MEF a dependency injection framework?

Question

The recently announced managed extensibility framework (MEF) of .NET 4.0 - is it a dependency injection framework? Will Microsoft Unity from Patterns and Practices be obsole

Answer 1

I would like to add one mopre line which I have just read that MEF is not a part of Inversion of Control(as dependecny is said to be synonym of IOC) but it implements it. When we implement IOC via dependency injections we generally use Unity, which helps in discovering static dependencies but MEF allows us to increase the extensibility of our application without configuring the components statically, even they can be discovered at run time. There are other links as well which can help you more: Difference between Unity and MEF