Hello Experts,

I wanted to know if "Bottom Up Estimation" can be used for Estimate Activity Durations? and if no, why not?

I was going through PMBOK and they mention that Bottom Up Estimation is a tool for Estimate Activity Resources and Estimate Costs.

So, not clear as to why this tool cannot be used for Estimate Activity Durations?

Please help clarify.

Thank you,

Regards,

Suiii