Question

I work with Umbrello but it hasn't some feature that i need and Umbrello is not good tools for class diagram . what other tools exist in Linux ?

Answer 1

Try ArgoUML. It's available for Linux, Windows and Mac OS.

Answer 2

There is also StarUML with a successor called SunUML.

StarUML supports most of the diagram types specified in UML 2.0. It is currently missing object, package, timing and interaction overview diagrams (though the first two can be adequately modeled through the class diagram editor).

StarUML was written in Delphi, which is one of the reasons why it is no longer maintained.
The project SunUML is aiming at creating a successor based on StarUML.

Answer 3

BOUML is referred at this Stackoverflow question (besides some other answers).

Answer 4

Maybe the OMONDO plugin for eclipse will help http://www.eclipsedownload.com/