Design-time use of software fault tree analysis allows designers to focus on safety critical system aspects early in the software development process. This paper presents a technique for evaluating the impact of software fault tree 'key nodes' requiring multiple inputs to fail before the hazard propagates through the system. A heuristics-based key node metric providing a design tool with which ...

Development of a Computer-Aided Fault Tree Synthesis Methodology for Quantitative Risk Analysis in the Chemical Process Industry. (December 2004) Yanjun Wang, B.En., Zhejiang University, Hangzhou, China Chair of Advisory Committee: Dr. M. Sam Mannan There has been growing public concern regarding the threat to people and environment from industrial activities, thus more rigorous regulations. Th...

When developing safety-critical software such as reactor protection systems (RPS) in nuclear power plants, a demonstration of software trust (e.g., safety) is not only absolutely essential but also usually mandated by government authorities. While automated generation of fault trees has become possible with increased use of formal specifications, industrial use of fault trees has been limited p...

In the rapid increasing usage of wireless sensor networks, fault tolerance is an exigent task to improve the overall performance. In this work we made an attempt using artificial bee colony approach to find data aggregation with fault tolerance in WSN to make an effective use of the existing resources. In this paper it is tried to apply the performance of the Q-MST based fault tolerance mechani...

Fault tolerance is increasingly important in modern autonomous or industrial robots. The ability to detect and tolerate failures allows robots to e ectively cope with internal failures and continue performing designated tasks without the need for immediate human intervention. To support these fault tolerant capabilities, methods of detecting and isolating failures must be perfected. This thesis...

This study focused on the public transport risk assessment in District one of ​​Tehran through Fault Tree Analysis involving the three criteria of human, vehicle and road in Haddon matrix. In fact, it examined the factors contributing to the occurrence of road accidents at several urban black spots within District 1. Relying on road safety checklists and survey of experts, this study made an ef...

Fault tree analysis (FTA), as one of the powerful tools in reliability engineering, has been widely used to enhance system quality attributes. In most fault tree analyses, precise values are adopted to represent the probabilities of occurrence of those events. Due to the lack of sufficient data or imprecision of existing data at the early stage of product design, it is often difficult to accura...

There is recently an interest in test generation for reversible circuits, but nothing has been published about fault localization in such circuits. The paper deals with fault localization for binary permutative reversible circuits. We concentrate on functional test based fault localization, and we generate an adaptive tree that depicts those faults that can be detected and localized. A striking...