For modelling to work generally (in most/all domains), you need some underlying paradigm all these models can be translated into. For excel, it's grid based da

For modelling to work generally (in most/all domains), you need some underlying paradigm all these models can be translated into. For excel, it's grid based dataflow, (for example, you can call it differently). I saw you tried dataflow already but stepped back from it. So what paradigm are you trying to use for EVE?