Dependable LQNS is a software tool for modeling and evaluating performability of fault-tolerant layered distributed applications that use a separate architecture for failure detection and reconfiguration. It takes into account the effects of management architecture, application software architecture, failure of management and application components in the dependability computation. It uses a combination of minpath algorithms, AND-OR graphs, noncoherent fault trees and Layered Queueing modeling in the analysis.
['Olivia Das', 'C. M. Woodside']
Dependable LQNS: a performability modeling tool for layered systems