If your interested Microsoft released " Office Business Applications" OBAs Their first target is a Reference Application Pack for Loan Origination Systems.
Thanks Mike now every one and their mother will think they can build an LOS and Wholesale system.
Video: Microsoft Loan Origination Reference Architecture
Building Distributed Applications
Architecting Regulatory-Compliant Architectures
Building Distributed Applications
Architecting Enterprise Loan Workflows and Orchestrations
Building Distributed Applications
Office Business Applications: Building Composite Applications Using the Microsoft Platform