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Describe briefly models which define the operations on classes.
The three models which are used to define operations on classes are as:
Object Model = data dictionary + Object model diagram
Dynamic Model = global event flow diagram + State diagrams
Functional Model = constraints + Data flow diagrams.
Explain the Fundamental concepts of object-orientation Software developers, data base administrators (DBAs) need to be familiar with fundamental concepts of object-orientation.
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what is primary key
Cardinality shows the number of instances of an entity associated with another entity participating in a relationship. Depend on the cardinality binary relationship can be further
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