A. True
B. False
Explanation: The statement mentioned is true and each activity represents one process step
A. Context Model
B. Behavioral Model
C. Data Model
D. Object Model
Explanation: Behavioral models are used to describe the dynamic behavior of an executing system. This can be modeled from the perspective of the data processed by the system or by the events that stimulate responses from a system.
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.
A. Activity
B. Data Flow Diagram (DFD)
C. State Chart
D. Component
Explanation: DFDs focus on system functions and do not recognize system objects.
A. True
B. False
Explanation: A data object encapsulates data only. There is no reference within a data object to operations that act on the data.
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.
A. Use Case, Sequence
B. Class, Object
C. Activity, State Chart
D. All of the mentioned
Explanation: Use case modeling is mostly used to model interactions between a system and external actors. Sequence diagrams are used to model interactions between system components, although external agents may also be included.