please I need help on how to use the Process Flow to ensure that my base stock inventory remains constant despite varying demands. Here is an attachment of what I am doing. I have used process flow to set up an initial inventory (of 500, 350 and 750) at every start of the simulation at the three queues. However, I want a constant amount of (not below) say 400, 300, and 600 in my Queues 1 to 3 respectively. I need a guide in this respect.
The simulation model is attached below.
Delete the sink; break apart and connect the source and create activities; add a wait for event, and loop the end of that back to the create activity.
While what you have is fine - consider using an Object Process Flow rather than a general one and putting the information you need on queues as labels (eg. targetLevel).
As a student try this (or something similar) and if you get stuck at any step come back and tell us with what you're having an issue.
@Jason Lightfoot, thanks for your comment. I did as you recommended, but all my inventories still got exhausted. Besides no special mention or action was in place for the base stock I want to maintain. Here is the picture of what I did.
Maybe I did not capture your suggestion very well.
Do I need to put some parameters in the Wait for an Event feature? I am asking because I did just as you explained and still did not get any result. Is there a way you could help expand the Wait for an Event flow,and add some information that could be of help in this regard. Maybe something like this:
Thanks so much for your time.
In my example I use an Object Process flow where the queue is referred to as 'current'. If you keep with the general process flow you'll need to replace that with your queue reference:
Thanks,@ Jason Lightfoot. Regarding the 'Value' which has current.replenishLevel, what is the current.replenishLevel representing? Is it a label, what is it referencing? Thanks for your time.
I made it a label on the queue representing your 400,300 and 600 levels respectively (remember in my example 'current' is the queue - so you'd need to replace that with your expression for the queue). You can have another label on the token of course too...
Also think about the number you want to create - it might not be fixed each time - the first time will be the full amount but for it to change it should be an expression.
@Jason Lightfoot, having initially created labels for Queues, Number of initial inventories, and the point to replenish (Replenishment) as seen in the first image, I went ahead to use the labels in the Wait for Event stage (second image) to imitate what you did but it still did not work.
.. And finally, it worked. Having combined the Wait for Event and Create Object before looping it. Of course, I used the last two information I posted earlier. Here are the last three images for those who might need similar information.
Thank you so much @Jason Lightfoot for your guidance and patience. I so much appreciate.
Good job - here's the version with the object process flow.
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