Developing Reliable Systems with SDL Design Patterns and Design Components
Christian Webel, Ingmar Fliege, Alexander Geraldy, Reinhard Gotzhein · 2004
SDL is a system design language that is being promoted for the development of reliable systems. In this paper, we apply SDL to capture design solutions to well-known mechanisms found in reliable systems- a watchdog and a heartbeat- for reuse. In particular, we present a methodology to augment system reliability step-by-step, and define and apply generic design solutions for reliable systems expressed as SDL design patterns and design components. These solutions can be integrated into an existing system design, to protect against certain types of system failures. We illustrate the approach by an application to a remote airship flight control over WLAN.