The railway is one of the most prominent models transportation across globe and it carries a large number people, thus requiring high reliability, maintainability safety. reliability railways mostly depends on an effective signalling system, making critical parts operation. A system part array systems with interconnected components subcomponents. Therefore, there need to make more reliable opti...

Maintainability is one of the most significant quality indicators. Its accurate measurement constantly support and increase the maintenance procedure. An accurate measure of software quality completely depends on maintainability measurement. A number of maintainability theories have been published till date and the maintainability concept has been developed with different research states. At th...

Can software maintainability be assessed at the early design stage? For a preliminary answer, we conducted a case study. The study adopts a set of metrics for class diagram measurement, and defines three indices for maintainability assessment from the defect-correction perspectives. The dataset under investigation includes the defect repository and corrective maintenance history of Apache Tomca...

The authors propose the use of a pinching gesture for relating the applications running on discrete mobile devices. The gesture is realized by swiping the touch-screen of two annexed mobile devices as if pinching them together. The authors believe that this user interface can create new user experiences of multiple-screen usages, especially by designing the applications’ content to react instan...

In this paper unit commitment problem (UCP) with spinning reserve and ramp rate constraint has been solved using Ant Colony System (ACS). In this model, foraging behavior of the real ants for finding its food from its start (nest) to its destination (food) is simulated to obtain the optimum solution. A search strategy has been adopted which involves the artificial ants to obtain the minimum cos...

In this chapter, we will introduce the basic concepts that constitute what is known as ReliabilityCentered Maintenance. Initially, however, we will briefly discuss how PM has evolved in the industrial world, and most importantly, we will look at how one of the basic tenets of reliability engineering—the “bathtub curve”—can and should influence the formulation of PM tasks. Next, we will look at ...

Recently, open-source software (OSS) has become a considerably popular and reliable source of functionality corrections. OSS also allows developers to reduce technical debt in development. However, previous studies have shown that the main problem within development is lack systematic processes formal documents related system development, such as requirements, designs, testing. This feature cau...

Maintenance of a computer-based system accounts for a large proportion of the total system cost. However, no well-established techniques exist for assessing the maintainability of such a system. This paper presents a case study in assessing the maintainability of a large, software intensive system. The techniques we used are described, and their strengths and weaknesses discussed.

Surveys suggest that supply chain risk is a growing issue for executives and that supplier reliability is of particular concern. A common mitigation strategy observed in practice is for the buying firm to expend effort improving the reliability of its supply base. We explore a model in which a firm can source from multiple suppliers and/or exert effort to improve supplier reliability. For both ...