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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:
-
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