PECOS - Pervasive Component Systems

The PECOS project aims to enable componentbased software development for embedded systems, specifically for field devices. The project addresses the major technological deficiencies of state-of-the-art component technology with respect to embedded systems by developing (I) a Component Model for embedded system components addressing behavior specification and non-functional properties and constraints, (II) a Component Repository utilizing this model, supporting a composition environment and interfacing to a component specification environment, (III) an interactive Composition Environment for composing embedded applications from components, validating functional (e.g., interfaces) and non-functional compositional constraints (e.g., power-consumption, code size), generating the application executable for the embedded device and monitoring their execution, (IV) an Ultra-light Component Environment to install, run, test, and tune componentbased applications on resource limited embedded systems and enable their management. In this paper, we discuss the requirements of field devices with focus on resource constrains and it’s implications on the component model, the composition environment, and the run-time