Patent ID: 6934673
Filing Date: 2005-08-23
Classification: G06F

Abstract:
1. A method of determining whether a multi-component target system meets a given multi-part performability requirement, the method comprising: obtaining a description of the target system and failure probabilities for components of the target system that can fail independently, obtaining a multi-part performability requirement for the target system, the multi-part performability requirement indicating desired performance levels for the target system and corresponding fractions of time, producing a first failure-scenario of said target system using a computer-implemented failure scenario generator module that receives as input the target system description and the failure probabilities, the first failure-scenario comprising one or more states of the target system having zero or more components failed and a corresponding probability of occurrence of the one or more of the states of the target system, modeling performance of the target system under the first failure scenario using a computer-implemented performance predictor module for generating a multi-part performability function of said target system, the performance predictor module receiving as input said first failure-scenario, comparing said multi-part performability function with said multi-part performability requirement, and determining from said comparing whether said target system meets said multi-part performability requirement.