Process with arbitrary state change

Hello,

I have a very high level requirements and trying to figure out what is the best way to implement it.

Basically, there is a business process of few steps and each step has some sub steps. For example S1 (S1.1 -> S1.2 ->S1.3) -> S2 (S2.1 -> S2.2) -> ... etc. with corresponding automatic state change.

But the hard requirement is that the user can move the process manually into any of the steps (mostly forward, but backward is also possible).

If I implement it as one process model with possibility to change state on each screen I would have to check the state after each user input and have a route to each of the other possible nodes which will create one-to-all lines which is not manageable.

Other way is to have the business process modeled by database entity record and have small one to few steps process models. In this way it will be less node connections and I'll still be able to get some time performance statistics about the user input node which I need. But the high level statistics I would to calculate manually because there is no process model for whole process.

Third option is to have one process model and have a gateway around each user input so if the user changes the status five nodes ahead the process model will pass the following gateways one by one.

Is it a better way to implement this requirement with Appian?

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