Comment on Why the last 20% of work takes the same amount of time as the first 80%Comments−jacques_chester12yWhile doing some research for an article[1] I read a paper[2] in which the main causes of underestimating are given as:1. "Frequent requests for changes".2. "Overlooked tasks".Agile methodologies are good at placing #1 front and centre. But importing that fusty old concept, the checklist, might help a lot with #2.[1] http://confidest.com/articles/how-accurate-was-that-estimate...[2] Albert L. Lederer and Jayesh Prasad. "Nine Management Guidelines for Better Cost Estimating". Transactions of the ACM. February 1992.
Comments
While doing some research for an article[1] I read a paper[2] in which the main causes of underestimating are given as:
1. "Frequent requests for changes".
2. "Overlooked tasks".
Agile methodologies are good at placing #1 front and centre. But importing that fusty old concept, the checklist, might help a lot with #2.
[1] http://confidest.com/articles/how-accurate-was-that-estimate...
[2] Albert L. Lederer and Jayesh Prasad. "Nine Management Guidelines for Better Cost Estimating". Transactions of the ACM. February 1992.