System Development Models

Question 1

Key characteristics of Agile Development

Answer 1

• needs of the customer
• quickly developing new functionality (to meed needs)
• iterative / repetitions

Question 2

Key characteristics of Waterfall Development

Answer 2

• sequential development

- result: development of finished product

Question 3

Key characteristics of Spiral Development

Answer 3

• easy said: many rounds of waterfall

- produces a number of fully specified + tested prototypes

Question 4

Four principles of Agile

Answer 4

• INDIVIDUALS AND INTERACTIONS over processes and tools
• WORKING SOFTWARE over comprehensive documentation
• CUSTOMER COLLABORATION over contract negotiation
• RESPONDING TO CHANGE over following plan

Question 5

Seven stages of waterfall

Answer 5

1. System requirements
2. Software requirements
3. Preliminary design
4. Detailed design
5. Code and debug
6. Testing
7. OPS & Maintenance

Question 6

The Spiral model is also known as:
A = “…”
B = “…”

Answer 6

A = metamodel
B = model of models

Question 7

What does the Spiral model allow?

Answer 7

multiple iterations of waterfall-style process

Question 8

What is the result of each “loop” of the Spiral model?

Answer 8

development of a new system prototype

Question 9

What solution to the major criticism of the waterfall model does the Spiral model provide?

Answer 9

allows developers to return to the planning stages (demands change)