If you work at all with Internet-facing solutions, you know that the lack of an identity metasystem is a critical vulnerability in the design. Various consortiums have worked to define a system of identity--a platform-agnostic way of communicating and validating claims of identity. If you work with identity solutions or structures, you will find Beginning Information Cards and CardSpace: From Novice to Professional essential to understanding and successfully implementing CardSpace solutions.

Topics range from fundamental discussion of identity--including identity concepts,...