The reliability data obtained from the field shows significant deviation from the expectation, especially from those obtained from reliability modelling. This hints that a more acurate model should be employed in the evaluation. A detailed model incorporating a transient fault in the form of hardware-software interaction offers a solution to this problem.
The analysis of performability for large and complex computer systems during design phase, although difficult, is an important activity which contributes to reducing lead times. A prerequisite of analysis is modelling and a decomposition technique is described. This technique enables the designer to divide the system's function successively into smaller… (More)