Finally, the interfaces between architecture modules are designed ... Upon identifying the basic elements (see Figure 6), the use case flows are analyzed, resulting a UML sequence diagram (see Figure ...

I now address the next question: how to refine use-case diagrams with interfaces and data flows (mapping to data sources) and how to hyperlink the UML artifacts to provide traceability. According to ...

while changes for scalability are best seen in the improved sequence diagrams. According to the RFP, UML 1.x notions of interface and architecture must be enhanced to support and simplify support ...

So far the better one I have run into is VP-UML but that one is pretty horrible as far as speed of use and user interface. <BR><BR>So programmers, what is the best UML program you have used?