Embedded systems are becoming one of the major driving forces in computer science. Furthermore, it is the impact of embedded information technology that dictates the pace in most engineering domains. Nearly all technical products above a certain level of complexity are not only controlled but increasingly even dominated by their embedded computer systems. Traditionally, such embedded control systems have been implemented in a monolithic, centralized way. Recently, distributed solutions are gaining increasing importance. In this approach, the control task is carried out by a number of controllers distributed over the entire system and connected by some interconnect network, like fieldbuses. Such a distributed embedded system may consist of a few controllers up to several hundred, as in today's top-range automobiles. Distribution and parallelism in embedded systems design increase the engineering challenges and require new development methods and tools. This book is the result of the International Workshop on Distributed and Parallel Embedded Systems (DIPES'98), organized by the International Federation for Information Processing (IFIP) Working Groups 10.3 (Concurrent Systems) and 10.5 (Design and Engineering of Electronic Systems). The workshop took place in October 1998 in Schloss Eringerfeld, near Paderborn, Germany, and the resulting book reflects the most recent points of view of experts from Brazil, Finland, France, Germany, Italy, Portugal, and the USA. The book is organized in six chapters: Formalisms for Embedded System Design': IP-based system design and various approaches to multi-language formalisms.Synthesis from Synchronous/Asynchronous Specification': Synthesis techniques based on Message Sequence Charts (MSC), StateCharts, and Predicate/Transition Nets. Partitioning and Load-Balancing': Application in simulation models and target systems. <Verification and Validation': Formal techniques for precise verification and more pragmatic approaches to validation. Design Environments' for distributed embedded systems and their impact on the industrial state of the art.Object Oriented Approaches': Impact of OO-techniques on distributed embedded systems. £/LIST£ This volume will be essential reading for computer science researchers and application developers.

Contenu
1 Formalisms for Embedded System Design.- IP-Centric Methodology and Specification Language.- Multilanguage Design.- 2 Synthesis from Synchronous/Asynchronous Specification.- From Synchronous Specifications to Asynchronous Distributed Implementations.- Using Extended Predicate/Transition-Nets for the Specification, Analysis and Synthesis of Embedded Real-Time Systems.- From MSCS to Statecharts.- Software Synthesis from Statechart Models for Real Time Systems.- 3 Partitioning and Load-Balancing.- Combining Static Partitioning with Dynamic Distribution of Threads.- Distributed HIL-Simulation for the Design of Decentralised Control Structures.- Distributed HIL-Simulation of Mechatronic Systems Applied to an Agriculture Machine.- Agent-Based Load Balancing for Mobile Robot Applications.- 4 Verification and Validation.- Comparing Model Checking and Term Rewriting for the Verification of an Embedded System.- Microscopic Modeling of Support System for In-Vehicle Embedded Systems.- Extended SDL-based Tools for Rapid Prototyping of Application Specific Signal Processors.- Block Diagram Based Real-Time Simulation on a Network of Alpha Processors and C40 DSPs.- 5 Design Environments.- The DASE Tool: An Environment for the Development of Real-Time Applications.- Paradise: Design Environment for Parallel & Distributed, Embedded Real-Time Systems.- MCI Multilanguage Distributed Co-Simulation Tool.- 6 Object Oriented Approaches.- Rapid Prototyping of Distributed Mechatronic Applications.- An 00 Based Methodology for Real-Time HW/SW Systems Modeling.- Modeling Distributed State as an Abstract Object.- Design Rationale of the PURE Object-Oriented Embedded Operating System.