Representing system behavior in design and analysis of large complex real-time systems

This paper summarizes several existing techniques for representing system behavior and describes the key features of an advanced approach for capturing behavior for a large, complex, real-time, computer-based system within a multi-domain system design capture and analysis methodology. Within this advanced approach for capturing system behavior three key aspects of representing complex system behavior are addressed: (I) response of the system to stimuli as observed externally (i.e., system as a black box), (2) real-time behavior of the system logical design options (i.e. Control, timing, and synchronization aspects of the system functions and data without regard to specific implementation in resources), and (3) real-time behavior of system implementation design options (i.e. response time, delays, queue lengths, and other aspects of the system behavior as embodied in the hardware, software and human resources and resource architectures)