Maintaining the UML Documentation
John Erik Hansen, Carsten Thomsen · Apress eBooks · 2004
As you develop your solution, your UML model will be subject to refinements and changes. Then, after deploying the solution, you’ll want to maintain the UML model in order to reflect error corrections and the customer change requests you’ve chosen to apply. Maintaining your UML documentation to keep it up-to-date is not an easy task.