Any non-trivial application contains dozens, probably even hundreds, of workflows, esp. applications disregarded as CRUD. How do you model workflows for these a

Any non-trivial application contains dozens, probably even hundreds, of workflows, esp. applications disregarded as CRUD. How do you model workflows for these applications? How do you avoid burying all business logic inextricably in code? How do you keep graphical representations and code in sync over time? Over a long time?