Its structure consists of attributes and actions . Pattern Computer representation of a real world concept . The combined values of its measurable properties at some point in time. A property which has a measurable value. The value may vary over time.
Part object An object which is part of another object.
Part objects are used to model part or aggregation hierarchies. An autonomous self-contained object which is not a part object. An attribute which is a reference to a separate object. A single phenomenon normally alternates among its own actions. An association or binding of a name to some entity.