iAnywhere Water System User Manual

Defining associations
98
Association properties
An association has the following properties:
Property Description
Maximum
length
Name Name of the association 254
Code Reference name for the association 254
Comment Descriptive comment for the association —
Stereotype Subclassification of an association derived from
an existing one. Extends the semantics of an
association without changing it's structure
—
Aggregation/
composition
Indicates whether the association is an
aggregation or a composition
—
Role A One end of an association. Each role can have a
name and a cardinality. You can make a role
navigable or not, or change its visibility
254
Role B One end of an association. Each role can have a
name and a cardinality. You can make a role
navigable or not, or change its visibility
254
Multiplicity Minimum and maximum number of instances that
the association can have
—
Ordering Indicates that the association is included in the
ordering that sorts the list of associations by their
order of creation.
—
Navigable Indicates whether or not information can be
transmitted between the two objects that are
linked by the relationship
—
Changeability Specifies if the value of the association can be
modified or not once the object has been
initialized
—
Visibility Visibility of the association, whose value denotes
how it may be seen outside its enclosing name
space
—