Section: Overall Objectives

Introduction

An embedded architecture is an artefact of heterogeneous constituants and at the crossing of several design viewpoints: software, embedded in hardware, interfaced with the physical world. Time takes different forms when observed from each of these viewpoints: continuous or discrete, event-based or time-triggered. Unfortunately, modelling and programming formalisms that represent software, hardware and physics significantly alter this perception of time. Moreover, time reasoning in system design is usually isolated to a specific design problem: simulation, profiling, performance, scheduling, parallelisation, simulation. The aim of project-team TEA is to define a conceptually unified framework for reasoning on time in cyber-physical system design, and to put this reflection to practice by revisiting analysis and synthesis issues in real-time system design with soundness and compositionality gained from formalisation.