This should bring up dozens of earlier threads on the topic covering things that should help you get started. Use the search terms "IBM 486", "IBM OOAD" or just "486" as that is the exam number IBM uses.
Allegedly, this exam will be discontinued at the end of the year or sooner. It may or may not be replaced by an exam that covers a more up to date version of UML. The current exam covers UML1.x so that is something to bear in mind.
FYI: Passing this exam does not give you a certification. You will need to pass some other exams/modules to qualify for a relevant credential:
Even I am quite interested in the 486 test and this is the exact news. IBM test 486 WILL NOT BE discontinued. However this test is a part of the series of tests that must be taken to become an IBM Certified Enterprise Developer - WebSphere Studio, V5.0. This certification on the whole is getting replaced with the latest version 6 one and will be in effect from July 1st. However, test 486 will still remain on its own.
Thanks Ismail for confirming this. So now its on to other certifications. Anyone with any knowledge on the various IBM certifications could help us out here. I have started another topic on what cert to take - Is 633/34/35 better or 833/34??? The 633/34/35 exams are IBM specific and mentions it as v2003. But the 833/34 exam is real good without any dependency on IBM products.
So any advice would help guys like us who look to assert our experience and get certified in UML.