Business Analysis 2 - Data modelling and requirements

What type of UML diagrams is used for data modelling?

• Use case diagrams

• Activity diagrams

• Class diagrams

• Sequence diagrams

• Deployment diagrams

How is the concept of having subtypes and supertypes in class diagrams called?

• Composition

• Specialisation

• Aggregation

• There is no name for it

What does aggregation mean?

• A class inherits the attributes of its parent class

• An object is composed of other objects

• Two classes are connected by a relationship

• Aggregation has no relationship with class diagrams

When modelling system data, the analysis of business scenarios can help identify...

• Classes

• Classes and their attributes

• Classes, their attributes, and methods

• Analysis of scenarios is not helpful in this case

What is the purpose of UML state machine diagrams?

• To understand the attributes of a class

• To understand the transition between states in response to events

• To understand the class hierarchy

• All of the above

What is CRUD?

• Class, Read, Update, Delete

• Class, Read, Undo, Do

• Create, Read, Undo, Do

• Create, Read, Update, Delete

Non-functional system requirements can be related to:

(Select all correct options)

• Data to be stored by the system

• Performance of the system

• Reliability of the system

• System outputs (e.g. reports)

How should the requirements be documented?

• A narrative (textual form)

• A requirements table

• Use case and other diagrams

• Any form, depending on the situation