What should I use in Prism- MEF or Unity?

Question

Found several good(related) questions here and here but all are nearly a year old.

I will like to know in the current context of Prism development what is better or at least scenario where each is better.

Answer 1

They are two approaches to solving some-what overlapping scenarios.

Unity shines when you are developing a modular application where users will be using a subset of the modules and modules are self-contained.

MEF shines when you have a lot of 3rd party developers creating plug-ins for your application - or several development teams publishing plugins.

We started out with Prism for core functionality and will be adding MEF for Widget-type functionality later - the idea being that border-line/customerspecific functionality will be delivered in MEF-plugins.

Both frameworks are really easy to get started with (MEF probably a bit 'simpler' from the get-go).

In my oppinion it really depends more on how your development strategy is structured rather than the application in question.