UML Metamodel The UML metamodel defines model elements and their relationships for UML diagrams
UML Metamodel The UML metamodel defines model elements and their relationships for UML diagrams
e Every model element can have zero one or more constraint e Constraint is a model element e Draw metaModel
Every model element can have zero, one or more constraint. Constraint is a model element Draw metaModel
Element I Mode ELement+constrained Bement name: Name Constraint body: Boolean爬sin +constraint
Modelnlement name: String stereot elementType lClrsifier type spad DataType Class Interf implEmented Set AssociationClas t visibility: Visibility 0..1 Association otheryhd Associ盘 ti onEnd lower Lowerbound Attribute Operation upper Upperbound composition: boolea e的ete Peres食te
元对象设施( Meta-Object Facility/MoF) MOF Model M3层 元-元模型(meta-meta-tode1) IDL M2层 Meta-Model Meta-Model 元模型〔aeta- models) 层 UML Models Interfaces 模型( models) M0层
元对象设施 (Meta-Object Facility/MOF)