It was an app that was heavily focused on business processes, like routing items between different groups. We had spreadsheets and process maps for each business process. This means the business actually had to think about the possible routes it could take and the data required on each step. So the spreadsheet would tell us all the possible data exposed on the step including how it was treated (R, RW, required, formats/types, etc). It was magical.

Once a process was created the business would have to sell any process changes to the product owner by either showing it was a regulatory/legal issue, or using a cost study to show it would save money. So not back and forth or superfluous changes.