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Activity Duration Estimates

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Activity Duration Estimates

Postby sdura Tue Feb 28, 2017 11:37 am

The senior analyst on a project came up with Activity Duration Estimates as follows:

Activity A: 10 days + a lag of 2 days

Activity B: 1 week + a lead of 3 days

The project manager who reviewed this came up with some objections to these estimates. What would they most likely be?

A The analyst should have included %variance information while mentioning the Activity Duration Estimate. This would indicate a range of possible results.

B Activity Duration Estimates should not include any lag or lead information.

C It is advisable not to mix up units such as days and weeks while coming up with Activity Duration Estimates.

D The Activity Duration Estimate should have also mentioned the predecessor or successor activity to which the lag or lead is attached.

I selected option C, but the answer says it is B. The reason I selected C from the given list is, in planning stage we recommend to use the same measurement units so all members follow the same and easy for estimation. In B, I felt activity duration estimates will have identified lead or lag at the end of its process considering the sequence of activities, so that it could be consolidated during develop schedule.
Posts: 1888
Joined: Sat Jan 04, 2014 3:55 pm

Re: Activity Duration Estimates

Postby manishpn Tue Feb 28, 2017 2:07 pm

yes we should have a uniform unit of measurements and that way i would agree with your choice..
However fundamental flaw is with activity duration now in absolute number of unit , you cannot have a duration with lead or lag.
Manish P
PMP, PMI - ACP, SAFe Agilist ... ification/
Posts: 9
Joined: Sat Jan 21, 2017 1:28 pm

Re: Activity Duration Estimates

Postby sdura Tue Feb 28, 2017 3:18 pm

Thanks Manish for clarifying.


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