Instance
An instance is a run-time entity with identity, that is, something that can be distinguished from other run-time entities. It has a value at any moment in time. Over time the value can change in response to operations on it.
One purpose of a model is to describe the possible states of a system and their behavior. A model is a statement of potentiality, of the possible collections of objects that might exist and the possible behavior history that the objects might undergo. The static view defines and constrains the possible configurations of values that an executing system may assume. The dynamic view defines the ways in which an executing system may pass from one configuration to another. Together, the static view and the various dynamic ...
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