You can apply a weighting to task assignments. Weightings give you a way to quantify how time should be spent. For example, in your company the tasks performed by the job secretary might include word processing:

• Word processing 75%
• Answering phones 10%
• Filing 10%
• Making travel arrangements 5%

If you add a task assignment (taking minutes, perhaps) to the task profile, you have to change the weighting percentages of all the tasks.