Web services are a business-driven technology, as they have arisen from a need for on-demand services and just-in-time integration to enable the rapid exploitation of market opportunities. Security challenges have accelerated alongside the rapid advances in this domain. The security requirement standards address a number of security and dependability issues. Securing Web Services: Practical Usage of Standards and Specifications collects a complete set of studies that address the security and dependability challenges of Web services and the development of protocols to meet those challenges. Encompassing a complete range of topics including specifications for message level security, transactions, and identity management, this Premier Reference Source enables libraries to provide researchers with an authoritative guide to one of the most challenging technological topics of our time.