SE3 UML Amended

Question 1

In UML, what are Use Cases

Answer 1

Shows interactions with users

Shows the functionality of a system from a users perspective

Question 2

In UML, what is an activity diagram

Answer 2

Shows the sequence of tasks in a process
Describes a system function represented by a use case
Can represent the three structural components of all procedural languages
- sequences, selections and iterations

Question 3

In UML, what is a Class Diagram

Answer 3

Shows data elements and their relationships
Shows attributes, operations and relationships among classes
Provides a high level basis for systems architecture and a low-level basis for the allocation of data and behaviour to individual classes and object instances

Question 4

In UML, what is a State Diagram

Answer 4

A state describes a particular condition that a modeled element may occupy for a period of time while it awaits some event or trigger
Movement from one state to another is dependent upon events that occur within the passage of time

Events - change, call, signal, relative time

Question 5

What are class stereotypes

Answer 5

particular kinds of classes that will be encountered again and again during requirements modelling

Question 6

Name three class stereotypes

Answer 6

Boundary, Entity, Control

Question 7

What is a boundary class

Answer 7

models the interaction between system and its actors

manage the transfer of information across boundaries

Question 8

What is an entity class

Answer 8

models information and associated behaviour of an individual, real-life object or real life event
Storing information

Question 9

What is a control class

Answer 9

represents coordination, sequencing, transactions and control of other objects