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A name which uniquely identifies this attribute to all programs. [We decide not to expose a separate namespace, so it is up to the CAS plugins to make sure that no two attributes have the same name and to try, as much as possible, to ensure that the same attribute from different sources has the same name.]
A set of values. It is a set because one person may have several phone numbers, several E-Mail addresses, and several eduPersonAffiliations. He may, for example, be both a student and an employee.
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