Walter Williams 
Security for Service Oriented Architectures [PDF ebook] 

This book examines both application and security architectures and illustrates the relationship between the two. Supplying authoritative guidance through the design of distributed and resilient applications, it provides an overview of the various standards that service oriented and distributed applications leverage to provide the understanding required to make intelligent decisions regarding their design. The book reviews recent research on access control for simple and conversation-based web services, advanced digital identity management techniques, and access control for web-based workflows.