The Unified Modeling Language (UML) has become an effective standard for software modelling.How many different notations does it have ?

The Unified Modeling Language (UML) has become an effective standard for software modelling.How many different notations does it have ?

A. Three
B. Four
C. Six
D. Nine

Explanation: The different notations of UML includes the nine UML diagrams namely class, object, sequence, collaboration, activity, state-chart, component, deployment and use case diagrams.

Which level of Entity Relationship Diagram (ERD) models all entities and relationships ?

Which level of Entity Relationship Diagram (ERD) models all entities and relationships ?

A. Level 1
B. Level 2
C. Level 3
D. Level 4

Explanation: Level 1 ERD models all data objects (entities) and their “connections” to one another while Level 3 ERD models all entities, relationships, and the attributes that provide further depth. Thus option b is correct.

__________________ allows us to infer that different members of classes have some common characteristics ?

__________________ allows us to infer that different members of classes have some common characteristics ?

A. Realization
B. Aggregation
C. Generalization
D. dependency

Explanation: Generalization is an everyday technique that we use to manage complexity. This means that common information will be maintained in one place only.