I am looking for a tool that will help me document all the requirements for a new project/solution. This would be a pre-step before we start using UML Model diagrams and creating all classes.
I did some research and the closest thing I found was this: http://en.wikipedia.org/wiki/Software_design_document
So I am trying to find a tool out there that could help us document all ideas before we jump into the UML phase.
It can help you through the conceptualization process or analysis and design process of the software, this tool can handle anything that needs planning.
Update: I forgot to mention that you can also use Sparx EA (Enterprise Architect) to do that, I think that it's one of the best modeling softwares available for a reasonable price; otherwise, use Rational Rose if you can afford it.
Thanks for that information, Eyal. It's always great to have options when it comes to SDLC.