Unit 8- Estimating

Question 1

1- Analogous

Answer 1

Uses actual values from other projects.

Careful not to compare to a bad project

Question 2

1- Analogous

Answer 2

Uses actual values from other projects.

Careful not to compare to a bad project

Question 3

2- Parametric

Answer 3

Uses historical data from projects.

Question 4

3- Analytical

Answer 4

Uses a detailed specification and breakdown of the scope to estimate time and cost for each element of work, which can then be summed to provide a total
estimate

Question 5

4- Delphi

Answer 5

Group of experts (3-7 in total)
• moderator, the project manager, experts and representative of
the development team

Question 6

Delphi pros and cons

Answer 6

Pros:
• Consensus-based estimation technique for estimating effort
• Useful when estimating time to do a task
• Participation of experienced people
• People who would do the work are providing estimates
• Anonymity maintained throughout makes it possible for
everyone to express their results confidently
• A very simple technique
• Assumptions are documented, discussed and agreed
• Cons:
• Management support is required