At my current job, we are currently implementing UML and RUP for the day by day coding and designing...
The current structure have 2% of all code (100000+ lines) object oriented... So they have this issue, when a developer have this new "case" (ir, requirement, etc) they must complete all the documentation and analysis to that old thing...
They must write the stakeholder request, uses cases identification, uses cases in detail, use case diagram, class diagram and sequence diagram...
As I see it, it's very difficult to implement a uml/rup architecture to the existing non-oo applications..
My question is, is this a common scenario?