Entry and exit criteria

Every stage needs two lists. Entry criteria say what must be true to enter. Exit criteria say what must be true to leave for the next stage. The exit of one stage is usually the entry of the next.

Write exit criteria so that someone else could check them, and so that the buyer, not the seller, did the thing: "buyer ran the trial on their own data", not "demo given". A checkbox process, where the rep ticks boxes without evidence, is the usual failure.