Models for Hardware-Software System Operational-Performance Evaluation
Amrit L. Goel, Jopie Soenjoto · IEEE Transactions on Reliability · 1981
Stochastic models for hardware-software systems are developed and used to study their performance as a function of hardware-software failure and maintenance rates. Expressions are derived for the distribution of time to a specified number of software errors, system occupancy probabilities, system reliability, availability, and average availability. The behavior of these measures is investigated via numerical examples.