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Instances of a structured DataType are considered to be equal if and only if the structure is the same and the values of the corresponding attributes are equal.

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SysML Complex ValueType
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Unified Modeling Language 2.5.1
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About Object Management Group copyright in text extracts quoted from OMG specifications for educational purposes
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UML keywords
Type
DataType
Classifier
structured DataType
If a DataType has attributes (i.e., Properties owned by it and in its namespace) it is called a structured DataType. Instances of a structured DataType contain attribute values matching its attributes.
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Instances of a structured DataType are considered to be equal if and only if the structure is the same and the values of the corresponding attributes are equal.
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A DataType may be parameterized, bound, and used as TemplateParameters.
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DataTypes model Types whose instances are distinguished only by their value
A SysML ValueType may define its own properties and/or operations, just as for a UML DataType.
A DataType is a kind of Classifier. DataType differs from Class in that instances of a DataType are identified only by their value. All instances of a DataType with the same value are considered to be equal instances.
If a DataType has attributes (i.e., Properties owned by it and in its namespace) it is called a structured DataType. Instances of a structured DataType contain attribute values matching its attributes.
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A DataType may be parameterized, bound, and used as TemplateParameters.
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