T2 - Use Case Diagram

Question 1

Explain the purpose of requirement analysis and stages required

Answer 1

The analysis provides insight into
How it works/ behave
Expected applications
Requirements by stakeholders

Eliciting: Attaining requirements
Analysis
Record

Question 2

Compare functional and non-functional requirement

Answer 2

Functional Requirement
high level overview of different applications 
Expected Application
Scope of the system
Interaction between systems

Non-Functional Requirements
Not directly related to the functional requirement.
Use ability: ease of use and quality service
Reliability: System needs to meet a service level agreement (accuracy, limited bugs)
Performance: Responsiveness
Supportability: System should be easily updated/modified and maintained
Security: Access Levels

Question 3

Explain what is a secondary Actor

Answer 3

System needs assistance to achieve its goal

Question 4

Explain the difference between a stakeholder and an actor

Answer 4

Stakeholder:
Provides system requirements
Determine what the system needs to succeed

Actor:
Actor is a entity outside the system and interact with the system to achieve a goal

Question 5

Define what use case modeling is NOT

Answer 5

Use cases does show how the system works
use case only shows what it should do (requirement analysis)
Only functional requirements
No tried to any language

Question 6

What is an include case

Answer 6

The Base is required to call on an include case for the base case is to be successful
The base case is dependent on the include case

Question 7

When do we use an extended use case

Answer 7

Extend case are conditional case that may or may not be executed

Add flexibility to maintain the use case

Question 8

Describe user case generalisation and the difference between generalised and specialised use case

Answer 8

use case that shares
same features
same goal

however each child case has additional features/use functions