14.7 Prototyping

During what stage is a prototype produced?

• Conception and Initiation

• Planning and design

• Monitoring and controlling

• Executing

What is a prototype?

• a task in a project that must be completed before another task can start

• a 'mock up' of a software or manufactured solution

• tasks that must be completed on time

• programming new software for a specified purpose

A prototype... (3 answers)

• problems can be identified

• is used to test and improve a design concept

• is used to make actual observations and gather necessary feedback

• is used in the design process to generate new and different ideas.

• cheap to do

Evolutionary / Incremental prototyping is:

• An initial prototype is developed, reviewed, improved based on feedback and so on...

• You make a prototype for a client as soon as possible, then act on feedback to produce the final solution.

Throwaway / rapid prototyping is:

• An initial prototype is developed, reviewed, improved based on feedback and so on...

• You make a prototype for a client as soon as possible, then act on feedback to produce the final solution.

Advantages of evolutionary / Incremental prototyping is: (2 answers)

• Users can get more familiar with parts of the system as it is developed

• Easier and cheaper to make changes before creating a final product

• Clients are heavily involved at the start, rather than throughout the process

• Only one prototype is produced, so money/time is not wasted

Choose three advantages of throwaway/rapid prototyping:

• Requirements are finely tuned early in the process, so more cost effective

• Lots of opportunities to develop ideas based on feedback

• Clients are heavily involved throughout the process

• Can be the quickest method of obtaining feedback from users

• First prototype is discarded, so materials and time are not wasted

What is a disadvantage of evolutionary / Incremental prototyping?

• Difficult to know when to stop developing the prototype and complete the development

• Development can be too quick with no time to review

• Clients are heavily involved at the start, rather than throughout the process

Figure 1 shows what type of prototyping?

• Evolutionary prototyping

• Throwaway prototyping

• Developmental prototyping

• Requirement prototyping

Figure 2 shows what type of prototyping?

• Evolutionary prototyping

• Throwaway prototyping

• Critical prototyping

• Requirement prototyping