I think &quot;data driven&quot; is meant in how all software modules are running in a kind of quasi-parallel mode: They read a bunch of &quot;current&quot; values, work on them, output a bunch of &quot;next&quot; values. Rinse and repeat.<p>Modern ECU software has lots of physical models in there. (I worked on a few.) Just using a few LUTs hasn&#x27;t been cutting it for quite some time.