The section ???Some De?¬?nitions??? formalizes some of the terms
used in the context of the Identity Metasystem.
The section ???Roles in the Identity Metasystem??? describes the
essence of the solution by introducing the entities and the relationships
that keep together the ecology de?¬?ned by the Identity
Metasystem. The discussion will still be at the model level, without
strong references to the actual rei?¬?cation of the solution in
today??™s technology landscape.
The section ???Components of the Identity Metasystem??? digs
deeper into the requirements that must be satis?¬?ed for making
one Metasystem possible. It will also lay the foundation for the
section ???WS-* Implementation of the Identity Metasystem??? later
in the chapter.
Some De?¬?nitions
The content of this section is long overdue. Through the book,
we introduce numerous concepts that are peculiar to the identity
management space. However, we have tried to avoid as
A system of systems
protects the investment
already committed
to in existing
technologies
The Identity Metasystem 113
Decoupling: A Winning Pattern
The Identity Metasystem aims to decouple identity-related operations from their
actual implementations.
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