Node Association Properties

To view or edit a node association's properties, double-click its diagram symbol or Browser or list entry. The property sheet tabs and fields listed here are those available by default, before any customization of the interface by you or an administrator.

The General Tab contains the following properties:

Property

Description

Name/Code/Comment

Identify the object. The name should clearly convey the object's purpose to non-technical users, while the code, which is used for generating code or scripts, may be abbreviated, and should not normally include spaces. You can optionally add a comment to provide more detailed information about the object. By default the code is generated from the name by applying the naming conventions specified in the model options. To decouple name-code synchronization, click to release the = button to the right of the Code field.

Stereotype

Extends the semantics of the object beyond the core UML definition. You can enter a stereotype directly in this field, or add stereotypes to the list by specifying them in an extension file.

Role A

One side of a node association. Each role can have a name and a cardinality and be navigable.

Node A

Name of the node at one end of the node association. Use the tools to the right of the list to create, browse for, or view the properties of the currently selected node.

Multiplicity A

Multiplicity indicates the maximum and minimum number of instances of the node association. You can choose between:
  • 0..1 – zero or one

  • 0..* – zero to unlimited

  • 1..1 – exactly one

  • 1..* – one to unlimited

  • * – none to unlimited

For example, in a computer environment, there can be 100 clients and 100 machines but there is a constraint that says that a machine can accept at most 4 clients at the same time. In this case, the maximum number of instances is set to 4 in the Multiplicity box on the machine side:



Role B

One side of a node association. Each role can have a name and a cardinality and be navigable.

Node B

Name of the node at the other end of the node association. You can use the tools to the right of the list to create an object, browse the complete tree of available objects or view the properties of the currently selected object.

Multiplicity B

Multiplicity indicates the maximum and minimum number of instances of the node association. For more details, see Multiplicity A, above.

Keywords

Provide a way of loosely grouping objects through tagging. To enter multiple keywords, separate them with commas.