Challenges in generating qos-constrained software implementations

Abstract

The limited processing power and memory capacities of early computing technologies often forced designers of real-time and embedded software to devise relatively sophisticated and complex architectural and programming patterns. The primary motivation, of course, was to eke out as much capability as the underlying implementation technologies could provide. Unfortunately, this tended to add complexity to the software, often making it very difficult to evolve, maintain, or port to different (e.g., more advanced) technologies. One of the primary sources of complexity in such systems is the intricate interleaving of application-specific concerns with implementation concerns that prevents easy distinction of one from the other.