Microsoft Office Tutorials and References
In Depth Information
Assigning material resources to tasks
When you assign a material resource to a task,
its label value appears in the Units column.
Because Bound galley proofs is a material resource, it cannot do work. Therefore,
assigning a material resource does not affect the duration of a task.
Click Close to close the Assign Resources dialog box.
Variable consumption rates for material resources
You just assigned a material resource with a fixed amount, or fixed consumption rate,
to a task. Another way to use material resources is to assign them with a variable
consumption rate. The difference between the two rates is as follows:
▪ A fixed consumption rate means that, regardless of the duration of the task to
which the material resource is assigned, an absolute quantity of the resource will
be used. For example, pouring concrete for a house foundation requires a fixed
amount of concrete no matter how long it takes to pour it.
▪ A variable consumption rate means that the quantity of the material resource
consumed depends on the duration of the task. When operating a generator, for
example, you will consume more fuel in four hours than in two, and you can
determine an hourly rate at which you consume the fuel. You enter a variable
consumption rate in units per time period; for example, you enter “2/h” to record the
consumption of two gallons of fuel per hour. After you enter a variable
consumption rate for a material resource’s assignment, Project calculates the total quantity
of the material resource consumed based on the task’s duration.
The advantage of using a variable rate of consumption is that the rate is tied to
the task’s duration. If the duration changes, the calculated quantity and cost of the
material resource will change as well. When you need this level of cost tracking for
a material resource, use a variable consumption rate.