Duration is the time units when work could take place according to the
calendar, whether it does or not, between when the task starts and when it
ends. Work is the full-time equivalent number of hours of work the
resource(s) actually did perform. And elapsed time is the amount of time as
told by a clock between when work is first done and when it is finished. So
imagine a task beginning Monday at 8 am, ending Friday at 5pm, 1 person
working on it who does one hour a day for that whole week (the first hour
from 8am to 9am Mon and the last hour from 4pm to 5pm Fri with the rest
distributed however you feel like it. Assuming the default standard
calendar, that task has 40 hours of duration, 5 hours of work, and 105 hours
of elapsed time. If you add a second person who also works 5 hours like the
first, whether they're working together with the first or separately, work
goes to 10 hours but the duration and elapsed time remain the same. It
sounds like your management is looking for work and calling it duration.
Work is what you pay the resources for, duration is the number of work hours
you need to keep the lights on for it to be in-progress, and elapsed time is
the total time it takes as measured by the clock on the wall.
--
Steve House [MVP]
MS Project Trainer/Consultant
Visit
http://www.mvps.org/project/faqs.htm for the FAQs