(27th International Conference on Technology of Object-Oriented
Languages and Systems (TOOLS'98),
September 1998, Beijing, CHINA.)
Real-time systems and applications impose stringent timing
constraints on critical tasks. The design of such systems are more complex
than that of conventional systems, because correctness and
performance, besides being key system design issues, are directly
related to system feasiblility. Object-oriented application frameworks have
been proposed for communication systems, distributed applications, medical
imaging, and financial engineering.
On the contrary, there has been relatively little work on an application
framework for the design of a general real-time system. Facing the growing
need for such systems, we propose a novel framework, called RTFrame, especially
for real-time systems. RTFrame consists of five components: Specifier,
Extractor, Scheduler, Allocator, and Generator.
Within RTFrame, several design patterns have been proposed for real-time
Experiences of using RTFrame show a significant increase in design productivity
through design reuse, and a significant decrease in design time and effort.