Here are some sample stories. Each one is backed up with conversation (see Stories Are Promises for Conversation). Each has related detailed information. Each one is simple enough that the programmers can understand it and can see how to implement it in a week or so.
Union dues vary by union and are taken only in the first pay period of the month. The system computes the deduction automatically. The amount is shown in the attached table.
When a transaction causes a customer's account to go into overdraft, transfer money from the overdraft protection account, if any.
When a transaction causes a customer's account to go into overdraft, send an e-mail showing the transaction and balance to the customer. If overdraft protection is ...