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Concept: Barrier

System documentation


Superconcept: Role

Definition: Barrier is the Role played by an Entity which is the instrument of a Block.

Required Relationships:

played-by: the entity that's playing the role of barrier
in-event: the Block event that the Entity is engaged in

Other Common Relationships:

is-between: the two regions separated by the barrier

Examples:

  1. The dam blocked the river.
    Comment: In this example, the Barrier role is described with these properties:
    in-event: Block with object=river
    played-by: dam