Modelling patients floew through different process phase

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gnoto
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Joined: Fri Dec 20, 2019 11:58 am
Vensim version: PLE

Modelling patients floew through different process phase

Post by gnoto »

Dear All,

I'm developing an SD model on Vensim PLE to study the flow of patients through the different phases of an ambulatory care process.
I'm modelling the flows between the different stocks which represent patients waiting for the subsequential treatment phase as:
IF THEN ELSE(Stock>0, Productivity, 0 )
With such an equation the model processes patients continuously and, for instance, even though a patient has not ended a phase, "part of it" start the following ones. Therefore the process goes faster that it should.
I would like the flows to function once the previous stocks have reached a unit and not just part of it (e.g. I cannot treat a patient if just 0.3 of it have gone through the pre-treatment phase).
Attached I share the section of the model I'm talking about; I hope somebody could help me.

Bests
Attachments
patients.mdl
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