Time pressure and quality issues bring new challenges for developing web-based systems. The ability to analyze quality early in the development lifecycle is crucial. Among the techniques suggested by the literature, few of them actually support early quality activities when little information about the system is available. We take robustness as a critically important quality attribute, and pres...

A new method of diagnosing risks in product-innovation projects is introduced in the paper. The method is an improvement on existing risk methods used on product-innovation projects, such as potential problem analysis and failure mode and effects analysis. Technological, organizational and commercial risks are identified and assessed on an individual basis. These risks are mapped in a risk topo...

This study focuses on building a framework which calculates the weights of FAHP (Fuzzy Analytical Hierarchical Process) method , then integrates the analysis tools such as FQFD (Fuzzy Quality Function Development) and FFMEA (Fuzzy Failure Mode and Effects Analysis) into the framework to construct a two-phase product specifications evaluation process. Therefore, this study builds a framework and...

to SA/RT by means of High-Level timed Petri Nets " , The international journal of time critical computing systems, [20] Department of Defense (DoD): Procedures of performing a failure mode, effects and criticality analysis. DoD, MIL_-STD_1629A.

Preventive methods are seldom used in logistics, although there is increasing awareness of their potential. This paper presents two examples of preventive methods currently in use, Poka-Yoke and FMEA (Failure Mode and Effect Analysis). The implementation of Poka-Yoke, the mistake proofing methodology, has been shown to drastically reduce the enormous warranty costs, including logistics costs, w...

Dwork, Lynch, and Stockmeyer (1988) and Lamport (1998) showed that, in order to solve Consensus in a distributed system, it is sufficient that the system behaves well during a finite period of time. In sharp contrast, Chandra, Hadzilacos, and Toueg (1996) proved that a failure detector that, from some time on, provides “good” information forever is necessary . We explain that this apparent para...

A failure mode and effect analysis (FMEA) was applied to improve the design of concrete ties in ballasted track for North American heavy haul applications. A literature review was conducted on concrete tie failure modes, failure effects, and failure causes. A survey of railroads and transit authorities in North America provided a ranking of the most critical concrete tie failure modes. The most...

We present a mechanism based on Chandra and Toueg unreliable failure detectors model. This mechanism can be used as building block for distributed systems running on Internet and requiring a non-blocking agreement between their components. The protocol we propose tolerates both local participants and groups of participants' failures in a large-scale and asynchronous environment prone to failures.

Abstract— The design quality holds a decisive influence on success of product. Our work is comprehensive study of software metrics to evaluate quality in the design phase which will be beneficial to find, repair design problems and saves large amount of potential expenditure. This paper evaluates employment of several design methods such as Robust Engineering Design, Failure Mode and Effect Ana...

For proper management of life cycle of machines and manufacturing facilities, it is important to perform appropriate maintenance operations, and to keep machine status for better reuse and recycling opportunity. For this purpose, a virtual maintenance system is very effective, where facility life cycle model is constructed in computer, and reliability and availability of machines are predicted ...