Microsoft BizTalk

Don't know ( or necessarily care ) about Microsoft implementation of business rules, but the specification and documentation deserve attention.

Developing BizTalk Server Applications

​http://msdn.microsoft.com/en-us/library/aa577497.aspx

Summary

• Developer Tools

• Using the BizTalk Messaging Engine

• Creating Schemas Using BizTalk Editor

• Creating Maps Using BizTalk Mapper

• Creating Pipelines Using Pipeline Designer

• Creating Orchestrations Using Orchestration Designer

• Creating and Using Business Rules

• Using Web Services

• Using WCF Services

• Developing and Configuring BizTalk Server EDI Solutions

• Developing and Configuring BizTalk Server AS2 Solutions

• International Considerations for Designing BizTalk Applications

• Deploying BizTalk Assemblies from Visual Studio into a BizTalk Application

• Creating a Single Sign-On Application

• Viewing Assemblies with the BizTalk Assembly Viewer

• Implementing Message Security

Messaging Engine

Schemas

Maps

Pipelines

Orchestrations

Business Rules

Web Services

BizTalk Server

Assemblies

Message Security