The most obvious considerations that affect an organization's choice of security technologies are the threats the organization considers significant and the costeffectiveness of various security technologies against those threats. In practice, however, the choice is also strongly driven by less tangible, more nontechnical, considerations such as ease of implementation and maintenance, fit with ...

Reversed hazard rate (RHR) is a useful tool in the area of maintenance management, particularly for condition monitoring. Its typical behaviour makes it suitable for the assessment of waiting time and hidden failures. Nature of reversed hazard rate is therefore, analytically and numerically investigated, for the standard distributions and presented in this paper. It is shown that RHR is a decre...

Since the mid 90s, we have been studying Web development and maintenance at Durham. One aspect of the research has been concerned with characterizing the evolution of Web sites over time. Another has been concerned with determining appropriate process models of Web development and maintenance. Overlaying this research has been work on Web metrics: firstly to evaluate web application quality, se...

Measurement of maintenance effort in object oriented software engineering is one of the major challenges. Coupling among classes is one of the major factors determining the maintenance effort. Coupling is measured as strength of interconnection or interdependence between different parts of the Classes in object oriented software. It is widely accepted that there is strong relationship between h...

The component’s reliability is a function of component age during a system’s operating life. Component aging is strongly affected by maintenance activities performed on the system.Two categories of maintenance activities are considered in this work: Corrective maintenance (CM) and preventive maintenance (PM). We expound a new method to integrate the effect of CM while planning for the preventiv...

This article describes the Bauhaus tool suite as a concrete example for software visualization in reverse engineering, re-engineering, and software maintenance. Results from a recent survey on software visualization in these domains are reported. According to this survey, Bauhaus can indeed be considered a typical representative of these domains regarding the way software artifacts are visualiz...

This paper is an attempt to define what software reengineering is and what it has accomplished in the light of 20 years of practical application. The paper points out that reengineering is one of the many software maintenance activities, i.e. everything done with software once it has been put to use. Reengineering actions are devoted to improving the technical quality of existing software. By a...

This paper presents the project Plamos that applies augmented reality techniques for process industry maintenance work. Plamos integrates augmented reality user interface with information stored in process plant operative applications, i.e automaton systems, engineering databases and maintenance systems. The Plamos prototype utilises standard application interfaces when accessing information fr...

Bug-tracking in software engineering is a distributed work process that involves collaborative learning. We seek to understand this process better through theories which view learning as a situated activity [Suchman 87, Lave 88]. Lave and Wenger argue that learning is a function of the activity, context, and culture in which it occurs (i.e. is situated) [Lave, Wenger 91]. A critical ingredient ...

This paper examines the exchange of software representations among reverse engineering tools. Background information on maintenance related activities and their importance in the software development lifecycle are outlined. An overview of tool support for software maintenance demonstrates the need for a standardized means for facilitating the exchange of information among reverse engineering to...