DataType [UML]:

A type with ⇒instances that can be identified by their values only.

Decision node [UML]:

The decision is a node in an ⇒activity where several optional flows branch. There is exactly one incoming ⇒edge and an arbitrary number of outgoing edges, each having a condition.

Dependency [UML]:

A relationship between two elements which describes that one element requires another element for its specification or implementation.

Deployment diagram [UML]:

A diagram that shows the hardware structure and the deployment of software. This diagram is not part of ⇒SysML.

Derive requirement [UML]:

A ⇒requirement that has been derived from another requirement.

Derived association/attribute [UML]:

An association or attribute that can be derived ...

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