Property::isNavigable()

Association and Property - some cases - with dot notation and ownership indicators

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:02: UML 101 for model-based systems engineering with SysML

Slide kind

UML Class Diagram

The dot shows that the model includes a Property of the type represented by the Classifier touched by the dot. This Property is owned by the Classifier at the other end.

Source

Unified Modeling Language 2.5.1

The dot is to be drawn integral to the graphic path of the line, at the point where it meets the Classifier, inserted between the end of the line and the side of the node representing the Classifier.

Source

Unified Modeling Language 2.5.1

Ownership of Association ends by an associated Classifier may be indicated graphically by a small filled circle, which for brevity we will term a dot.

Source

Unified Modeling Language 2.5.1

Aggregation type, navigability, and end ownership are separate concepts, each with their own explicit notation. Association ends owned by classes are always navigable, while those owned by associations may be navigable or not.

Source

Unified Modeling Language 2.5.1

Navigability notation was often used in the past according to an informal convention, whereby non-navigable ends were assumed to be owned by the Association whereas navigable ends were assumed to be owned by the Classifier at the opposite end. DEPRECATED.

Source

Unified Modeling Language 2.5.1

Association and Property - some cases

Gallery

Tutorial

TRAIL: Webel's ultimate guide to Systems Modeling Language (v1) with MagicDraw/Cameo

Section

01:02: UML 101 for model-based systems engineering with SysML

Slide kind

UML Class Diagram

These multiplicities may be assumed if not shown on a diagram. To avoid confusion, any multiplicity other than the default should always be shown on a diagram.

Source

OMG Systems Modeling Language (SysML) 1.7

A part or shared association has a default multiplicity of [0..1] on the black or white diamond end. A unidirectional association has a default multiplicity of 1 on its target end.

Source

OMG Systems Modeling Language (SysML) 1.7

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