I think for a while whether to go for the OCUP exams. Since OCUP only test the UML spec I doubt whether such exams would make sense for the OOAD process. As I've learned in OOAD you don't need to know every bit and byte of the UML spec. Please take into account that most of the colleagues around us do not know UML at all.
What is your opinion on the OCUP influence on OOAD
They're basically useless. They test your knowledge of UML. That says nothing about your ability to develop an OO-based system.
But they might help you to get a job because the HR people generally don't have a clue how to hire people, but instead will look for keywords and what they consider the "right" certifications. It's pretty sad but that seems to be the way it works for a very large number of organizations. The real question is whether you want to work for them or not.