Effectiveness evaluation of the joint operation system is an important basis for demonstration and development weapon equipment. With consideration that existing models effectiveness seldom describe structural relationship among equipment clearly as well reflect dynamic, analog-to-digital converter-graphical review technique (ADC-GERT) network parameter estimation model proposed based on ADC st...

In this paper one of the important “end of life options” (remanufacturing) has been analysed. Among the related studies surveyed the various remanufacturing aspects, less attention has been paid to the stochastic process routing. In this regard, a remanufacturing process routing with stochastic activities is modelled as a GERT network. One of the efficient ways to analyse a remanufacturing proc...

Koutras (1997) analyzed reliability of a consecutive-k, r-out-of-n: DFM system consisting of n components linearly arranged which fails if and only if at least k consecutive components are failed-open or at least r consecutive components are failed-short. In this paper Graphical Evaluation and Review Technique (GERT) has been applied to model and analyze the reliability of the above system. On...

Reworking in developing software exists widely in IT project management. But the current estimating methods on project duration cannot deal well with this problem. In this paper, some key concepts, such as adjusted activity, adjusted GERT network, expected project duration, expected critical path, are firstly defined. Then authors study estimating method on project duration for different rework...

The purpose of this research is to develop a value chain management model for agricultural eco-innovation that can encompass different aspects create value. It employs the Graphical Evaluation and Review Technique (GERT), which translates remanufacturing operational process into stochastic network. A GERT network covers two main points: its probability component parameter component. With functi...

this paper proposes a hybrid method to find cumulative distribution function (cdf) of completion time of gert-type networks (gtn) which have no loop and have only exclusive-or nodes. proposed method is cre-ated by combining an analytical transformation with gaussian quadrature formula. also the combined crude monte carlo simulation and combined conditional monte carlo simulation are developed a...

This paper reports an analysis of the software (SW) safety testing techniques, as well models and methods for identifying vulnerabilities. An issue has been revealed related to reasoned selection modeling approaches at different stages process identification its vulnerabilities, which reduces accuracy results obtained. Two steps in vulnerabilities have identified. A mathematical model built pre...