What is difference between test case and test scenario and test suite?
A test case involves an actual company or event that occurred. A test scenario uses a fake event that could occur. A test scenario is a simulation where the parameters can be changed to manipulate the results.
You need a very detailed agreement to spell out what happens in a worst case scenario and a best case scenario and everything in between. Usually you have a board of directors who can arbitrate, mediate, etc in case of disagreements. And you will have disagreements on a lot of things: how much cash to pay each of the partners, if any, when to expand. What products to sell and where.