Originally posted by: Alessandro Cimbelli

Thank you in advance for any suggestion you will propose to help me to solve my modeling problem.

I have a task that represents the production of 100 pieces of a certain product (e.g. PROD_A). Right now I'm capable to increase the cumulFunction that tracks the available quantity of PROD_A only at completion of the whole task. Is there a way to constantly release partial portion of the total amount of produced PROD_A?

For example 25 pieces after 25% of task completion, other 25 pieces between 25%-50% of task completion and so on.

Is there a way to model this?

Thank you!

Hi,

what you could do is decompose your production interval into n sub intervals which will produce 1/n of the quantity.

regards

Originally posted by: Alessandro Cimbelli

Hi, thank you for your suggestion.
I actually did that and I had a problem with it. 
Basically, I have alternatives for the production of that task (e.g. PROD_A can be produced on machine A, B and C) and if I split the original task in sub-task I can't constrain them to go all together on the same tool alternative. If I would limit the task to go on a specific tool I would loose the alternative feature, If I don't do it, I can't be sure that the sub-task will be scheduled on the same tool all together. 
Is there a way to overtake this problem?
Thank you

Hi,

why don 't you use equality constraints on presenceOf for intervals ?

So all subtasks will be on the same machine

regards

Originally posted by: Alessandro Cimbelli

I solved with your suggestion, Thank you!