Spiral Model

Spiral model was originally proposed by

• Winston

• Barry Boehm

• Dexter

• Royce

In the spiral model ‘risk analysis’ is performed

• In the first loop

• In the first and second loop

• In every loop

• At the center of the spiral

Identify the disadvantage of Spiral model

• High amount of risk analysis

• Strong approval and documentation control

• Doesn't work well for small projects

• Changes are implemented faster

Each loop in the spiral model represents

• Phase

• Design

• Documentation

• Test case

Spiral model is a combination of

• V-model and Incremental

• Incremental and Prototype

• Incremental and Waterfall

• Waterfall and Prototype

When to use spiral model

• requirements are complex

• cost and risk evaluation is important

• Significant changes are expected

• all of the above

Identify the Weakness of Spiral Model

• Easy to define objectives

• Time consumption is less

• model is complex

• Indefinite loop exists

Spiral model is developed in a series of incremental releases

• True

• False

Spiral model is a realistic approach to software development

• True

• False

How many spirals does the Spiral model contain

• 4

• 3

• 5

• None of the above