Since the last installment in this little series, I've started to consider how Ruby/C# hybrid MEF applications might look. The result is yet another component-based calculator: Besides the Radiohead arithmetic , there is one reason to get excited... Ruby parts! (I bet you hadn't guessed.) The Ruby-based...

MEF is fascinating because of the way some initial assumptions led to a different flavor of composition technology from the ones we've seen for .NET to date. In my opinion, the most exciting ‘parameter variation’ in the design process for MEF was the idea that ‘parts’ should support...