HI I have a fundamental question here. Iam planning to start my SCEA part 2 work. But even though i've finished part1, i've still a lot to learn about UML. Is there any specific tutorial where it will explain a simple requirement and step by step process of doing,use case, sequence and class siagrams. please somebody help me with this, so that i can start my work right away. And also i would like to know which is the better tool for UML generation. I came to know about some of them like together,magic draw, rational, etc.. suggest a one which i can download and use it in an easier way. thanks in advance. thanks.