Revision as of 17:40, 22 March 2023

Relationships

EDGY defines three types of relationships each of which can connect two elements to express their interplay. This limited number reflects a deliberately simplified model compared to other visual languages used in engineering practice.

Using just three relationships, various enterprise elements can be collected and connected:

A link relationship describes an association between two elements. A flow relationship describes a behaviour or dynamic sequence between two elements, and the passing of objects between them. A tree relationship describes a containment or aggregation between a parent and a child element of the same type.

The link relationship is an association between two elements. By default it is non-directional and unnamed and just shows that the two elements are related. Links can also be made directional by giving them a direction and a name. The flow and tree relationships are unidirectional, describing a source and a target endpoint. If a bi-directional connection between elements is intended, two relationships should be defined: one from element A to element B and one from B to A. All three relationships can be displayed visually as a line or arrow, but also expressed implicitly through proximity, containment, indentation or alignment on a grid.

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 =Relationships=
-The EDGY language defines three types of relationships
+EDGY defines three types of relationships each of which can connect two [[elements]] to express their interplay. This limited number reflects a deliberately simplified model compared to other visual languages used in engineering practice.
-each of which can connect source and target elements
-to express their interplay. This limited number reflects
-a deliberately simplified model compared to other
-visual languages used in engineering practice.
-Using just three relationships, various Enterprise
+Using just three relationships, various enterprise elements can be collected and connected:
-Elements can be collected and connected
-in Enterprise Design Boards:
-*A [[link]] relationship describes an association between two elements.
-*A [[flow]] relationship describes a behaviour or dynamic sequence between two elements, and the passing of structures between them.
-*A [[tree]] relationship describes a containment or aggregation between a parent and a child element of the same type.
-All relationships are unidirectional, they describe a source and a
+A [[link]] relationship describes an association between two elements.
-target endpoint. They can be displayed visually as a line or arrow, but
+A [[flow]] relationship describes a behaviour or dynamic sequence between two elements, and the passing of [[objects]] between them.
-also expressed implicitly through proximity, indentation or alignment
+A [[tree]] relationship describes a containment or aggregation between a parent and a child element of the same type.
-on a grid.
+The link relationship is an association between two elements. By default it is non-directional and unnamed and just shows that the two elements are related. Links can also be made directional by giving them a direction and a name. The flow and tree relationships are unidirectional, describing a source and a target endpoint. If a bi-directional connection between elements is intended, two relationships should be defined: one from element A to element B and one from B to A. All three relationships can be displayed visually as a line or arrow, but also expressed implicitly through proximity, containment, indentation or alignment on a grid.