Analysis of the models discovered by Genetic and Heuristic Miner

Shital

Hi,

I am working on http://data.3tu.nl/repository/uuid:cdf3ba31-291d-468d-9712-3a58ac6da3fc  log.

Following are three models discovered by Alpha, Heuristic and Genetic miners. When possible, can anyone help me with the following :

 

1. Why are those black squares in the models discovered by Heuristic and Genetic Miner ?

2. When trying to replay the log, the wizard asks me for a final marking. How do I decide which one should be the final marking ?

Thanks in advance !!

 

Regards,

Shital

 

JBuijs

Dear Shital,

Thank you for your question.

1. Those 'black squares' in a Petri net are silent transitions. They are not observable (e.g. do not correspond to an activity) but are used to distribute tokens as required. In the example of the heuristics model it takes the token produced by A and makes if available for B and C    or    B, C and D.

2. The initial marking is how the model starts, e.g. where are tokens. For the petri net discovered by the Heuristics miner this is the place that serves as input to activity A. The final marking it the marking that should be acchieved to know that the process has finished. In the example of the heuristics model this is the place that is the output of activity G. Only this place should contain a token, none of the other places.

Advanced remark: note that the process models discovered by the Heuristics miner is not sound, e.g. tokens can be left behind.

I hope this answers your question Shital!