Re-spun text for Identity Federation Definition

Re-spun text reflects discussion in:

http://lists.oasis-open.org/archives/security-services/200410/msg00040.h
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A broader discussion is found in:

http://lists.oasis-open.org/archives/security-services/200410/msg00040.h
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PROPOSED CHANGES to sstc-glossary-2.0-cd-02:

(1) identity federation, identity defederation respun:

Identity federation

A principal's identity is said to be federated between a set of
Providers, when there is an agreement between the providers on a set of
name-value pairs to be used to refer to the principal. 

Identity defederation

A principal's identity is said to be defederated between a set of 
providers, when the providers agree to stop referring to the principal
using a certain set of name-value pairs.

(2) The last sentence in the definition of account linkage would be
modified
to read:

Account linkage can be established by means of identity federation.

(3) No change to definition of account






http://lists.oasis-open.org/archives/security-services/200410/msg00002.h
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