Optimal Redundancy Allocation for Information Management Systems
Journal Title: Journal of Applied Quantitative Methods - Year 2007, Vol 2, Issue 1
Abstract
Reliability allocation requires defining reliability objectives for individual subsystems in order to meet the ultimate goal of reliability. Individual reliability objectives set for software development must lead to an adequate ratio of time-length, level of difficulty and risks, as well as decrease development process total cost. Thus, redundancy ensures meeting the reliability request by introducing a sufficient quantity of spare equipment. But in the same time, this solution leads to an increase in weight, size and cost. The aim of this paper is the investigation of reliability allocation to specific sets of software applications (AST) under the circumstances of minimizing development and implementation costs by using the Rome Research Laboratory methodology and by complying with the conditions of costs minimization triggered by the introduction of redundancies [GHITA 00]. The paper analyses the ways in which the software reliability allocation gradual methodology can be extended. It also analyses the issue of optimal system design in terms of reliability allocation by using instruments of mathematical programming and approaches the variation of reliability and system cost by taking into account the redundancy introduced in the system. This paper is also going to provide an example of calculus which uses a representative software system and illustrates the methodology of optimal allocation of specific sets of software applications reliability.
Authors and Affiliations
Cezar VASILESCU
Keywords
Related Articles
- EP ID EP134710
- DOI -
- Views 100
- Downloads 0
The Contribution of Labour and Capital to Romania’s and Moldova’s Economic Growth
In the present research we have used the Cobb-Douglas production function in its classical form for analyzing Romania’s and Moldova’s economic growth in relation to the intensity of using capital and labour as determinan...
Security Metrics for Enterprise Information Systems
Managing the security of enterprise information systems has become a critical issue in the era of Internet economy. As any other process, security can not be managed, if it can not be measured. The need for metrics is im...
Reliability Sampling Plans: A Review and some New Results
In this work we present a large area of aspects related to the problem of sampling inspection in the case of reliability. First we discuss the actual status of this domain, mentioning the newest approaches (from a techni...
Interrelationships of Organization Size, Information and Communication Technology Adoption
This paper aims to describe interrelationships between size of the organization and adoption of information and communication technologies (ICT). We hypothesize that size of the organization is interrelated with ICT usag...
Modeling the Reliability of Information Management Systems based on Mission Specific Tools Set Software
The operational environments in which information management systems operate determine the existence of complex situations. Consequently, the command and control flow can take different paths, which involve different “se...