12.1.3 Different Development Lifecycles

Which model is best suited for a project with a clear set of requirements and no expected changes during the development process?

• a) Waterfall Model

• b) Iterative Model

• c) RAD

Answer explanation

What is the main principle of the Waterfall model?

• a) Iterative development

• b) Rapid prototyping

• c) Linear, sequential development

• d) Component-based development

Answer explanation

Which development model is best suited for a project with changing requirements?

• a) Waterfall

• b) Iterative

• c) RAD

Answer explanation

A software company is working on a project to develop a website for a school. The school principal has some ideas about the appearance of the website but is unclear about all the details of the solution. The principal would like to see an initial version of the website.

Identify a life cycle method that would be appropriate in this case.

• Rapid Application Development (RAD) Model

• Iterative Model

• Waterfall Model

• This is the correct answer (its not)

Answer explanation

The following diagram shows the incomplete waterfall model of the program development life cycle.

Complete the diagram.

• 
• 
• 
• 

Answer explanation

LOL

How does the Iterative model handle requirements changes?

• a) Changes are incorporated into the next iteration

• b) Changes are incorporated into the current iteration

• c) Changes are not incorporated at all

• d) Changes are incorporated into the final version

Answer explanation

In the Iterative model, changes are incorporated into the next iteration of the development process. This is because the Iterative model uses a repetitive process of creating a working version, gathering feedback, and making adjustments. Therefore, if the requirements change, the development team can incorporate those changes into the next iteration of the development process. This allows for greater flexibility and adaptability in the development process, as the team can respond to changing requirements as they arise.

How does the Waterfall model handle requirements changes?

• a) Changes are incorporated into the next stage of development

• b) Changes are incorporated into the current stage of development

• c) Changes are not incorporated at all

• d) Changes are incorporated into the final version

Answer explanation

The Waterfall model is a linear, sequential development process in which each stage of the development process is completed before moving on to the next stage. There is little to no overlap between the stages, and changes or adjustments to the requirements are not easily incorporated into the development process once a stage is completed. This means that if the requirements change during the development process, it can be difficult or impossible to incorporate those changes into the final product. This is one of the main drawbacks of the Waterfall model, as it can lead to a final product that does not meet the needs of the end-users or customers.