That earned them the collective name of the
WS-* speci?¬?cations.
Today the WS-* speci?¬?cations cover most of the key aspects of
cross-platform software communication. Many of them already
enjoy the status of industry standards rati?¬?ed by entities such as
OASIS or the W3C. Many products on the market, from the
most diverse vendors or Open Source projects, leverage those
standards for interoperating out of the box across different platforms.
Such ubiquity, coupled with advanced security capabilities,
constitutes the ideal foundation for implementing a truly inclusive
Identity Metasystem. In the next several sections, we familiarize
you with some of the most important WS-* speci?¬?cations,
to the extent to which we can later understand what their roles
are in the Identity Metasystem architecture.
Basics
The main idea behind web services is simple: Use a universally
understandable format for describing your data and de?¬?ne a
way to describe how you want to communicate with your software.
That is achieved through a number of speci?¬?cations that
build on one another.
XML
The Extensible Markup Language (XML) is an immensely popular
markup language, which has the advantage of being readable
cross-platform and, when the complexity and size permits
it, by humans as well.
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