Instance dialog box

Instances

A node instance is an instance of a node. Nodes represent a kind of executable unit, whereas node instances represent examples of communicating nodes. Through clustering associations, node instances can present the instances that they contain, such as objects or components.

A component instance is an instance of a component. The semantic range of components starts from a C++ source code, documentation, an executable library, from the component model dedicated to business objects such as Java ejb, for example. Component instances can be deployed in specific node instances, and their behavior is specific.

The "Instance" dialog box contains four tabs - "Properties", "Notes", "Tagged values" and "Stereotypes". For information on these standard dialog box tabs, please see "Standard dialog box tabs".

The "Properties" tab of the "Instance" dialog box

The "Properties" tab of the "Instance" dialog box is used to enter values for an instance.

The "Properties" tab of the "Instance" dialog box

Key:

· "Name": This is the name of the instance.

· "Constant": This is used to specify that the value of the instance cannot change.

· "Max" and "Min": These are used to express the maximum and minimum values of the instance.

· "Expression of value": This is the expression of the initial value in the target language, used to instantiate the object.

· "Instantiate": This combobox is used to indicate the element to be instantiated.