role group

role group

This is a synonym for relationship group.

relationship group

This is used to refer to a group of relationships representing an attribute group.

attribute group

An association between a set of attribute value pairs that causes them to be considered together within a concept definition or postcoordinated expression.

Notes

• When an attribute group is represented as a group of defining relationships it is usually referred to as a relationship group.

Example

• has two different attribute groups:

  • is grouped with

  • is grouped with

• If these attributes were not grouped, this procedure would incorrectly classified as a subtype of .

• Relationship group

• Role group