There is a need to facilitate learning from failures in the context of natural and manmade disasters. This paper investigates the multi-faceted nature of research in disasters and the aspect of hybrid approaches in modelling within this domain. The paper applies a framework of reliability and multiple criteria decision analysis techniques to the case of the Hurricane Katrina disaster of 2005. I...

Object-oriented paradigm promises a high level of reusability in software development. However, by just selecting an object-oriented programming language does not guarantee achieving highly reusable software components. Reusable components have to be designed carefully from the early stage of software development. Among many proposed guidelines for improving software reusability, \class indepen...

Safety analyses are of paramount importance for the development of embedded systems. In order to perform these analyses, safety engineers use different modeling techniques, such as, for instance, Fault Trees or Reliability Block Diagrams. One of the industrial development process challenges today is to ensure the consistency between safety models and system architectures. Model Based Safety Ana...

We propose an algebraic approach to block diagram construction as an alternative to the classical graph approach inspired by dataflow models. The proposed algebra is based on three binary operations of construction : sequential, parallel and recursive constructions. These operations can be seen as high level connection schemes that set several connections at once in order to combine two block d...

In the binary decision diagram–based terminal-pair network reliability analysis, the size of binary decision diagram heavily depends on the chosen edge ordering. From a theoretical point of view, finding the best ordering is an intractable task. Therefore, heuristics have been used to obtain reasonably good orderings. Among them, the breadth-first search heuristic typically outperforms other he...

Since more and more enterprises become dependent upon computer communication network or networked computing applications particularly after the growth of local area network, wide area network and internet. Therefore failure of a single component may directly affect the functioning of the network. The nodes and the edges may fail in any real network. In this paper we have proposed an efficient a...

in this paper, optimal design of hybrid solar-wind- diesel energy system with battery storage for reliable load in arsoon village in ardabil is presented. the village has 35 households that mean daily energy consumption is estimated 63.4 kwh. in this design optimization is implemented, considering loss of power supply probability (lpsp) index for reliable load providing, with minimum total cons...

This paper gives a practical systematic approach towards the maintenance procedure optimisation of critical industrial unit in operation, to improve its maintainability. The resolution maintainability challenge (Vibrating screen - VSU) was realised by performing two-phase analysis, encompassing criticality and assessment. assessment comprised failure investigation using fault tree analysis (FTA...

Software Engineering is associated with development of software products using well defined principles, techniques and processes. The result of Software Engineering is an effective and reliable product. The software products have chances to fail during implementation and design phases. The design time testing and reliability measurement can enhance the process of development and their component...