attribute
An attribute is the description of a named element of a specified type in a class; each object of the class separately holds a value of the type.
Semantics
An attribute is a named element within a classifier that describes the values that instances of the classifier may hold. Every instance of the classifier or one of its descendants has a slot holding a value of the given type. All the slots are distinct and independent of each other (except for class-scope attributes, which are described later). As execution proceeds, the value held by a slot within an instance may be replaced by a different value of the type, provided the attribute is changeable.
A classifier forms a namespace for its attributes. Also included in the namespace are ...
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