NIntegrate is open source .NET enterprise SOA framework. It provides several reusable SOA components to solve specific enterprise SOA problems. Different from some other one-in-one SOA solution, NIntegrate is designed to be easily integrated with your company’s application frameworks.
Problems NIntegrate solves:
1) Decouple WCF configuration from Web.config/App.config files.
2) Dynamic query through WCF.
3) Flexible object mapping.
4) LRU dictionary & caching.
5) Single thread worker queue.
Read the article for details:
.NET Enterprise SOA – NIntegrate Practice
http://www.cnblogs.com/teddyma/articles/1651126.html