Class | Description |
---|---|
Attribute |
Defines an attribute of an entity or an artifact An attribute can only belong
to one entity or artifact.
|
ConceptualModel |
A conceptual model consisting of entities and relationships
|
ConcModelInstances | |
Entity |
Defines an entity containing a set of attributes
|
EntityInstance |
Defines an instance of an entity with specific values for the attributes Can
store more than one value per attribute in the same instance but these are
only used for timestamp attributes.
|
EntityInstances | |
ForeignKey |
A foreign key consisting of the attribute which is a foreign key and the
entity and attribute to which it points (key or part of it)
|
Relationship |
Defines a relationship between entities and the corresponding cardinalities
The distinction between which node is source and which target is arbitrary.
|
ValueList |
Defines a list of values belonging to the same attribute with a pointer
to the current value which is used in testing inclusion dependencies.
|
Enum | Description |
---|---|
AttributeType |
Defines the four possibles types for attributes of artifacts or entities
|
Cardinality |
Defines the possible cardinalities of relationships between entities
|