International journal of performability engineering 

About: International journal of performability engineering is an academic journal published by Totem Publisher. The journal publishes majorly in the area(s): Computer science & Reliability (statistics). It has an ISSN identifier of 0973-1318. Over the lifetime, 1336 publications have been published receiving 6189 citations.

The Functional Economy: Cultural & Organizational Change

Abstract: A functional economy, as defined in this paper, is one that optimizes the use (or function) of goods and services and thus the management of existing wealth (goods. knowledge, and nature). The economic objective of the functional economy is to create the highest possible use value for the longest possible time while consuming as few material resources and energy as possible. This functional economy is therefore considerably more sustainable, or dematerialized, than the present economy, which is focused on production and related material flows as its principal means to create wealth. One aim of this paper is to sketch out a functional economy. The other is to show the social, cultural, and organizational change that may arise in shifting from a productionoriented economy toward a functional or service-oriented economy.

Review of Systems Defense and Attack Models

Abstract: This review paper classifies 129 published papers according to the system structure, defense measures, and attack tactics and circumstances. System structure is further divided into single element, series systems, parallel systems, series-parallel systems, networks, multiple elements, interdependent systems, and other types of systems. Defense measures are divided into separation of system elements, redundancy, protection, multilevel defense, false targets deployment and preventive strike. Attack tactics and circumstances are divided into attack against single element, attack against multiple elements, consecutive attacks, random attack, combination of intentional and unintentional impacts, incomplete information, and variable resources. The classification is intended to give an overview of the field and implicitly suggest future areas of research.

Secrecy in Defensive Allocations as a Strategy for Achieving More Cost-Effec tive Att acker Dett errence

Abstract: We discuss strategic interactions between an attacker and either centralized or decentralized defenders, and identify conditions under which centralized defender decision making is preferred. One important implication of our results is that partial secrecy about defensive allocations (disclosure of the total level of defensive investment, but secrecy about which resources are defended) can be a strategy for achieving more cost-effective attack deterrence. In particular, we show that such partial secrecy can be potentially beneficial when security investments are discrete (e.g., as in the use of air marshals to counter threats to commercial aviation).

Survivability Quantification: The Analytical Modeling Approach

Abstract: In this paper, we present a general survivability quantification approach that is applicable to a wide range of system architectures, applications, failure/recovery behaviors, and metrics. We show how this approach can be applied to derive survivability measures based on the current definition and extend it to other measures that are not covered by any current definition but can provide helpful information for better understanding of system steady state and transient behavior under various adverse conditions. An example of a telecommunications switching system is given for the purpose of illustration. Markov models are developed and solved for the example to show the use of the proposed quantification approach via analytical modeling.

A review on degradation modelling and its engineering applications

Abstract: Degradation modeling is an effective approach for reliability assessment, remaining useful life prediction, maintenance planning, and prognostics health management. Degradation models are usually developed based on degradation data and/or prior understandings of physics behind degradation processes of products or systems. Further, the effects of environmental or operational conditions on degradation processes and the knowledge about the dependency between degradation processes help improve the explanatory capabilities of degradation models. This paper presents a comprehensive review of existing degradation modeling approaches commonly used in engineering applications. To assist practitioners in understanding the concept of degradation modelling, the existing methods are classified into two broad categories: the data-driven approach and physics-based modelling approach. By systematically reviewing these approaches, we highlight their merits, useful applications and limitations. Finally, we provide a summary and indicate several future research challenges in this important area of reliability engineering.