Kutty,

The more productive resources you add, the less time an activity will take.

For example, you want to place 10000 ea. masonry units.

If Resource A can place 450 units per day, Resource B can place 300 units per day, and the crew is composed of 1 ea. Resource A and 2 ea. Resources B the crew will install 1x450+2x300 = 450+600 = 1050 units per day, the task will take 10000 units / (1050 units/day) = 9.52 days

If you add one resource B then the crew will be able to install 1x450+3x300 = 1350 units per day, the task will take 10000 units / (1350 units/day) = 7.40 days

You must model not only productive resources into your crew but also nonproductive as without these the productive will not be able to work and produce. In addition, it is important you model different resource productivity especially when using skills and each member of the skill pool have different productivity.

The above are very basic and simple concepts, production rates (Productivity) is the most basic estimating term of all, same as unit cost.

If your software use hour as the unit of work instead of a physical volume of work, similar to MS Project, then I would not be of any further help as this complicates the conceptual interpretation in a way I believe weird, unnecessary and therefore wrong. This inadequate use of concept/language is perhaps from time studies literature instead of the language of the estimator and the field.

When using hours as the unit of work then hours/hours would be the units for productivity, you must then define your own standard productive hour for each process, this wold be chaotic, insane.

Best regards,

Rafael

Shazia,

For Ramadan you can reduce work days of a week by 60% (6h/10h) so a 6 days work week would become roughly 4 days work week, this can be by simply by marking 2 more days per week as non-working days on the 6 day work week calender.

As far as I know Primavera P5/P6 do not allow changing individual month(s) working hours which means one calendar can be 6hr or 8hr or 10hr or xhr throughout.

So if what you have done is that you have a assigned a different less-hours (6h/d) calendar for the activities that you believe are going to occur in Ramadan, then you have to ask yourself, what if these activities slip beyond Ramadan, what will happen then!!! the calendar they are following is surely not valid!

I think other than the solution that I have mentioned there isn’t anything else you can do in Primavera.

Cheers,
Rami

Shazia,
You can define a calendar that work 10hrs normal and 6hrs on specific months. On your resource you can also assigned date for max unit/time to match your calendar and P6 will used that date assigned to resources.