edrawsoft.com

Edraw Network Diagrammer is a professional network diagramming software with rich examples and templates. Easy to draw detailed physical, logical, Cisco and network architecture diagrams.

Edraw is a new UML diagram and software diagram drawing tool. Easy to draw uml model diagram, COM and OLE, data flow model diagram, Jacobson Use Case, SSADM Diagram, Nassi-Schneiderman, Booch OOD, ROOM Diagram, Yourdon and Coad and Shlaer-Mellor OOA.