Microsoft Office Tutorials and References

In Depth Information

**Assigning work resources to tasks**

The scheduling formula: duration, units, and work

After you create a task but before you assign a resource to it, the task has duration

but no work associated with it. Why no work? Work represents the amount of effort

a resource or resources will spend to complete a task. For example, if you have one

person working full-time, the amount of time measured as work is the same as the

amount of time measured as duration. In general, the amount of work will match the

duration unless you assign more than one resource to a task or the one resource you

assign is not working full-time.

Project calculates work using what is sometimes called the
scheduling formula
:

Duration × Assignment Units = Work

Let’s look at a specific example and find these values in the Task Form. The duration

of task 3 is one week, or five working days. For the new book launch project, five days

equals 40 hours. When you assigned Toni Poe to task 3, Project applied 100 percent of

Toni’s working time to this task. The scheduling formula for task 3 looks like this:

6

40 hours (the same as one week) task duration × 100% assignment units = 40 hours

of work

In other words, with Toni assigned to task 3 at 100% units, the task should require 40

hours of work.

Here’s a more complex example. You assigned two resources, Jane Dow and Zac

Woodall, to task 9, each at 100% assignment units. The scheduling formula for task 9

looks like this:

24 hours (the same as three days) task duration × 200% assignment units = 48

hours of work

The 48 hours of work is the sum of Jane’s 24 hours of work plus Zac’s 24 hours of

work. In other words, as currently scheduled, both resources will work full-time on the

task in parallel for its three-day duration.