We describe a layered approach to access control for distributed and interoperable computing systems. Firstly, compound access control policies are conceptually specified, using ...
This paper addresses the problem of following an arbitrary path with a dissipative passive haptic display. Such a display has energetically passive actuators; all motive energy mu...
This paper presents a Hoare-style logic for reasoning about the frequency response of control systems in the continuous-time domain. Two properties, the gain (amplitude) and phase ...
We propose the πD -calculus, a process calculus that can flexibly model fine-grained control of resource access in distributed computation, with a type system that statically pr...
In this work we tackle the following problem: given a timed automaton, and a target set F of configurations, restrict its transition relation in a systematic way so that from ever...