Portability must be included as part of a thoroughgoing review/rewrite of the section of eduPerson (200806) on "Identifier Concepts:"
1) uniqueness
2) persistence
2a) reassignable
3) mutable
3a) resynchable
4) palatable
5) opacity
6) correlatable
7) privacy
8) portable
Many of these properties need to have more possible values than True or False.
Here's a trial run with further revisions (dependency is indicated by indentation)
University of Wisconsin-Madison
Name Identifier Properties ePPN UUID PVI ePTID
Scope wisc.edu wisc.edu wisc.edu wisc.edu
- Uniqueness within scope global within scope global
Reversable reversible reversible reversible reversible
Persistence persistent persistent persistent persistent
Transparency transparent opaque opaque opaque - Palatibility palatable no palatable no
Mutable mutable on approved user request mutable only in case of mistaken identity mutable only in case of mistaken identity mutable - Reassignable potentially no potentially no?
- Resynchable resynchable no no resynchable
Correlatable correlatable correlatable correlatable only within specific application group
Portable no potentially no no
NOTE: Name identifiers are a threat to privacy to the extent that they are transparent, reversable, resynchable,
correlatable and portable