SysML does NOT distinguish between 'assembly' and 'delegation' Connector kinds (because of its more complex support for nested ports). These Connector type classifications are only relevant in UML.

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Note kind
WARNING
Policy level
INFORMATIVE
UML keywords
ConnectorKind::assembly
ConnectorKind::delegation
SysMLv1.x keywords
nested Port
NestedConnectorEnd
Keywords
In MagicDraw/Cameo SysML models the underlying 'assembly' or 'delegation' can sometimes appear to switch, just ignore this completely, it is not meaningful in SysML.
Thanks to No Magic Support for clarifying this.
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