Week 3

Question 1

What is the major cause of system failures?

A.
Badly defined requirements

B.
Not enough functions in a system

C.
Wrong development formats used

Answer 1

A.
Badly defined requirements

Question 2

What does a use case diagram consist of?

A.
Actors and use cases

B.
Actors and flowcharts

C.
Use cases and data flow diagrams

Answer 2

A.
Actors and use cases

Question 3

Why would an organisation NOT start a new system development project?

Question 3Answer

A.
New business requirements

B.
New development software release

C.
Replacing an old system

Answer 3

A.
New business requirements

An organisation might start a new system development project for a number of reasons: new business requirements, replacing an old system, the merging of two existing systems due to acquisition and mergers and others.

Question 4

Which of the following is a common tool used to perform object modelling in developing object-oriented systems?

A.
Classes

B.
UML

C.
Use cases

Answer 4

B.
UML

Question 5

“Identifying external interfaces, both human and system-to-system. The technology of an existing system with which the system must interface can constrain its requirements and design.”

What does the statement above used for?

Question 5Answer

A.
Interacting with users

B.
Setting boundaries

C.
Writing requirements

Answer 5

C.
Writing requirements