I sometimes see on APUG descriptions of chemical processes in terms of characteristic curves and time/temperature variations/formulations for a variety of alternative processes (as one reads in books on this subject). I am only familiar with a few types of alternative photographic process, due to the time I can spend on them. However, with these processes my approach is to experiment again and again with alterations of variables to try and gain an intuitive feeling for the process rather than one that is scientific. That is not to say that I ignore basic chemistry, but any formulations I read about, I take as a guide rather than gospel. I find this works for me, but what approach do others take?