R878 - modelint/shlaer-mellor-metamodel GitHub Wiki

R878 / 1:Mc

Identifier Select selects using exactly one Identifier

Identifier is used to select by zero, one or many Identifier Select

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By definition, an Identifier Select action uses an Identifier as all or part of its selection criteria. This guarantees the selection of zero or one instance. Note that a Class may define more than one Identifier and any of these will do.

Any given Identifier may or may not be used in any number of Identifier Select actions.