SYSML11 — 8.3.1.2 Internal Block Diagram

.3.1.2 Internal Block Diagram: p.40: assert that value properties must be owned with AggregationKind 'composite' This would be consistent with the following from 8.3.1.2 Internal Block Diagram, Property types: ".. A part or value property is always shown on an internal block diagram with a solid-outline box. A reference property is shown by a dashed-outline box, consistent with UML .." Rewrite to include assertion that value properties must always be owned with AggregationKind 'composite': ".. A part or value property has AggregationKind 'composite' and is always shown on an internal block diagram with a solid-outline box. A reference property has AggregationKind 'none' or 'shared' and is shown by a dashed-outline box, consistent with UML .." (Please note also that this case also illustrates why it would be useful to have a clear stereotypes like ValueProperty throughout the SysML specification, as it affords a canonical point of documentation for such assertions and constraints.)

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