RIA Services versus WCF Services

Question

I\'m rewriting an LOB application whose architecture is like this:

Silverlight && Windows Mobile -> WCF -> Entity Framework -> Database.

Answer 1

.NET RIA Services had been named as WCF RIA Services in PDC which was held in November 2009. Since it is built on top of WCF, hence the name WCF RIA Services.

You'll need to use WCF RIA Services for building N tier application involving database(or any information that needs to be carried along the tiers).