1.2.3. Software Development

Question 1

What are the 7 stages of software development? (ADDTIEM)

Answer 1

analysis
design
development
testing
implementation
evaluation
maintenance

Question 2

What is the defenition of white box testing? (3 things)

Answer 2

• a form of testing carried out by software development teams,
• where the test plan is based on the internal structure of the program
• all of the possible routes through the program are tested

Question 3

What is TELOS?

Answer 3

a method of analysis used by designers to evaluate the feasibility of a project

used for analysis in waterfall method

Question 4

What 5 aspects does TELOS consider? (mneumonic)

Answer 4

Technical: is the project possible considering the technology available and accessible
Economic: can the project be financed in the short-term and the long-term?
Legal: can the project be solved within the law?
Operational: can the project be successfully implemented and maintained?
Scheduling: can the project be completed given the time available?

Question 5

What are agile methodologies? (2 things)

Answer 5

• a collection of methodologies, which aim to improve the flexibility of software development
• that responds quickly to changes in user requirements

Question 6

What are 3 advantages of waterfall programming?

Answer 6

1. straight forward to manage
2. clear structure
3. clear documentation

Question 7

What are the disadvantages of extreme programming methodologies?

Answer 7

1. high cost due to two people working on one project
2. teamwork and good communication is essential
3. end-user must be present during the development of the project
4. very little documentation

Question 8

What type of projects are spiral programming methodologies suited to?

Answer 8

large, risk-intensive projects with a high budget

Question 9

What type of projects are rapic application (RAD) programming methodologies suited to? (2 things)

Answer 9

• projects where high usability is required and user requirements may not be clear from the start or are continually changing
• suited to projects of a small to medium size with relatively low budget and short time-frame

Question 10

What is the defenition of an algorithm?

Answer 10

a set of instructions used to solve a problem

Question 11

What are 3 key qualities of algorithms?

Answer 11

1. must always reach a stopping condition
2. must be able to deal with invalid inputs
3. must always produce a valid output for any defined input