Fact type role

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Definition:	role that specifically characterizes its instances by their involvement in an actuality that is an instance of a given fact type

Source:	SBVR	Meaning	Concepts

Concept type:	concept type

Necessity :	Each fact type role is in exactly one fact type.

Necessity :	No fact type role is an object type.

reference scheme	a placeholder that represents the fact type role

reference scheme	a variable that maps to the fact type role

reference scheme	a characteristic that has the fact type role

Note:

A fact type role is fundamentally understood as a point of involvement in actualities that correspond to a fact type. Its incorporated characteristics come from the fact type - what the fact type requires of instances of the role. It is possible that two fact type roles incorporate the same characteristics, such as when a binary fact type means the same thing when roles are reversed, as in ‘person is married to person’."A fact type role is fundamentally understood as a point of involvement in actualities that correspond to a fact type. Its incorporated characteristics come from the fact type - what the fact type requires of instances of the role. It is possible that two fact type roles incorporate the same characteristics, such as when a binary fact type means the same thing when roles are reversed, as in ‘person is married to person’." cannot be used as a page name in this wiki.

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