The PLUSS approach (Product Line Use case modeling for Systems and Software engineering) is a domain modeling method tailored towards the development of long lived software intensive systems. PLUSS provides means to maintain a common and complete use case model for a whole family of systems. In this paper, we describe how the commercial requirements management tool Telelogic DOORS and the UML modeling tool IBM-Rational Rose can be extended and used for managing system family models in accordance with the PLUSS approach.

IShell is a visual user interface for interaction using gestures under the UNIX operating system. A visual script language for building commands — IScript — is an integral part of the IShell environment. The user can directly describe and execute pipelined command sequences using gestures. The user is constantly guided by visual cues.