Originally posted by: adelalb

Hello,

I'm a new to the software. I''m trying to model a scheduling problem as a constraint satisfaction problem.  I'm having a situation that I'm not able to address in the model :

Situation:  We need to schedule a set of sub-project s and their internal/sub tasks with precedence constraints between tasks. 

The characteristics of the problem are:

workers have to assign to tasks.

duration of tasks are in days
workers can do multiple  tasks in parallel. However, they can't work more than 8 hours in a day.

the contributions of each worker into each tasks are defined by percentage. For example, a manage can be allocated to task A for only 20% and that will cover the need of task A for a manger

Question: how can write a constraint to ensure a manager can't work more than 8 hours per day for all activities are being assigned to.

If you are using OPL, I suggest you ask in the OPL forum. If you are using one of the programming APIs for CPOptimizer, I suggest you ask in the CPOptimizer forum.

Originally posted by: adelalb

Thanks