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Going forward, attributes from additional specifications and standards will be added (including a master set from FICAM and one from the state of Virginia). One open issue is whether the current list of attribute metadata is adequate or whether there would be value in carrying additional metadata elements in a general purpose registry of this sort.
Reference: The
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Currently Defined Set of Forty-six Attribute Classes
Account, Address, Affiliation, Application, Assurance
Birthdate, BirthPlace
Citizenship, Contact, Country
DN, Date, Description
Email, EmailMetadata, Entitlement
Format
Gender, Group
HostName
Identifier
Language, Link, Locale, Location
Manager
Name
Organization
Password, Phone, Photo, Pointer, Position, Preference, Presence, Privacy, Profile
Role
Salutation, Search, StateOrProvince, StatusMessage, SuperiorNode
Tag, Timezone
URL