This paper gives an overview of a recently completed study undertaken for the UK Nuclear Industry on the Reliability of Smart Instrumentation, that is instrumentation which depends upon digital electronics and computer software for its correct operation. In many critical contexts, high reliability is a requirement which must be justified from an analysis or actual data obtained from use of the ...

We report on a model-based approach to system-software coengineering which is tailored to the specific characteristics of critical onboard systems for the aerospace domain. The approach is supported by a System-Level Integrated Modeling (SLIM) Language by which engineers are provided with convenient ways to describe nominal hardware and software operation, (probabilistic) faults and their propa...

Validating embedded real time systems for use in safety critical applications is difficult for most applications. When these systems are based on commercially available microprocessors andor microcontrollers, the validation task can be made significantly more difficult by the lack of basic data integrity protection on board the processor and peripherals. Additionally, basic address boundary pro...

BACKGROUND Failure Mode and Effects Analysis (FMEA) is a prospective risk assessment tool that has been widely used within the aerospace and automotive industries and has been utilised within healthcare since the early 1990s. The aim of this study was to explore the validity of FMEA outputs within a hospital setting in the United Kingdom. METHODS Two multidisciplinary teams each conducted an ...

FMEA (Failure Mode and Effects Analysis) is a systematic method to characterize product and process problems. As a standard document, an FMEA is produced during the design of a product or system. However, once a system is deployed, the corresponding FMEA is rarely validated and updated. This is mainly due to the lack of method to validate and update FMEA. This paper argues that historical maint...

Failure mode and effects analysis (FMEA) is an analysis tool for identifying and preventing flaws or defects in products during the design and process planning stage, preventing the repeated occurrence of problems, reducing the effects of these problems, enhancing product quality and reliability, saving costs, and improving competitiveness. However, FMEA can only analyze one influence factor ac...

I. Introduction The reasons for improving the analog and mixed-signal test program set design and Failure Mode Effects Analysis (FMEA) process are well documented [1-7]. For instance, identification of chronic production faults, improved safety and reliability through the analysis of difficult to test failure modes, investigation of circuit failure mechanisms, and excessive part stress could al...

Failure Mode and Effect Analysis (FMEA) is a widely used quality improvement and risk assessment tool in manufacturing. Design and process failures recorded through FMEA provides valuable knowledge for future product and process design. However, the way the knowledge is captured poses considerable difficulties for reuse. This research aims to contribute to the reuse of FMEA knowledge through a ...

a r t i c l e i n f o Keywords: Failure mode and effects analysis Data envelopment analysis Overall risks Risk priority ranking Failure mode and effects analysis (FMEA) is a method that examines potential failures in products or processes and has been used in many quality management systems. One important issue of FMEA is the determination of the risk priorities of failure modes. In this paper ...