(Reading this a few days later in an open tab. :-) ) Imho the most important thing is to have a good design document for the data model. Partly because it ofte

(Reading this a few days later in an open tab. :-) ) Imho the most important thing is to have a good design document for the data model. Partly because it often decides a lot of the structure of the code. It is e.g. easier to rewrite code than realize that you lack some stuff you should have captured about customers years ago...