Evaluating the reliability of NAND multiplexing with PRISM

Gethin Norman, David Parker, Marta Kwiatkowska, S Shukla

Research output: Contribution to journalArticle

68 Citations (Scopus)


Probabilistic-model checking is a formal verification technique for analyzing the reliability and performance of systems exhibiting stochastic behavior. In this paper, we demonstrate the applicability of this approach and, in particular, the probabilistic-model-checking tool PRISM to the evaluation of reliability and redundancy of defect-tolerant systems in the field of computer-aided design. We illustrate the technique with an example due to von Neumann, namely NAND multiplexing. We show how, having constructed a model of a defect-tolerant system incorporating probabilistic assumptions about its defects, it is straightforward to compute a range of reliability measures and investigate how they are affected by slight variations in the behavior of the system. This allows a designer to evaluate, for example, the tradeoff between redundancy and reliability in the design. We also highlight errors in analytically computed reliability bounds, recently published for the same case study.
Original languageEnglish
Pages (from-to)1629-1637
Number of pages9
JournalIEEE Transactions on Computer-Aided Design of Integrated Circuits and Systems
Issue number10
Publication statusPublished - 1 Jan 2005


Dive into the research topics of 'Evaluating the reliability of NAND multiplexing with PRISM'. Together they form a unique fingerprint.

Cite this