Dear Community,

I have some processes modelled with BPMN process diagram (BPMN 1.X) and I have inserted the Business Simulator Attributes related to the times distributions. My choice has been a Normal Distribution specifying mu and sigma. 

Several times, when I run the simulation the following error appears on different activities:

"A negative value for a randomly distributed attribute was determined for object ... in model ...

To avoid this, please change the distribution parameters"

Mu is major of Sigma. It is not that the cause.

I have tried several possible solutions but without changes. 

Please, can you help me? What should I adjust?

My version of ARIS is 7.2 in an Academic Licence. 

Regards

Mariangela

 

 

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