We propose a mechanism for object access control which is based on the UML. Specifically, we propose use of ownership and immutability constraints on UML associations and verifica...
In designing autonomous agents that deal competently with issues involving time and space, there is a tradeoff to be made between guaranteed response-time reactions on the one han...
Modal Transition Systems (MTS) are operational models that distinguish between required and proscribed behaviour of the system to be and behaviour which it is not yet known whethe...
Abstract. This paper describes recent work concerned with the speci cation of requirements on interactive systems and the de nition of user-level properties of such systems. A form...
A typical knowledge worker is involved in multiple tasks and switches frequently between them every work day. These frequent switches become expensive because each task switch req...