Title: Quality service: estimating software reliability for global system for mobile communications (GSM) Funtone

Authors: Aigbokhan Edwin Enaholo, Ago K.M. Quaye, Lawrence I. Oborkhale, Ephrem Eyob, Adeyemi A. Adekoya, Emmanuel Omojokun, Adigun J. Oyeranmi

Addresses: Computer Science Department, Yaba College of Technology, Yaba, Lagos, Nigeria. ' School of IT and Communications, American University of Nigeria, Adamawa, Nigeria. ' School of IT and Communications, American University of Nigeria, Adamawa, Nigeria. ' Engineering & Technology Department, Virginia State University, Petersburg, VA 23806, USA. ' Computer Information Systems Department, Virginia State University, Petersburg, VA 23806, USA. ' Computer Information Systems Department, Virginia State University, Petersburg, VA 23806, USA. ' School of IT and Communications, American University of Nigeria, Adamawa, Nigeria

Abstract: In this paper, we examined the reliability of Funtone software and its impact on quality service to the user. As Global System for Mobile (GSM) software is relatively new in the market and the level of awareness of its quality service is low; the need for quality assessment of these services cannot be overemphasised. We have estimated the distribution of time interval between failures variable to follow a Poisson process with the parameter, λ. The intervals between failures follow an exponential distribution and from this, we estimated the reliability of the software indirectly the quality service of Funtone. Furthermore, we carried out a Monte Carlo simulation; the result is in total agreement with what has been predicted by Poisson and exponential distributions.

Keywords: Funtone; ringtones; failog; SMS; short message service; GSM; mobile communications; MTTF; mean time between failures; MTTR; mean time to repair; NVP; N-version programming; recovery block; quality services; software reliability; service quality; Monte Carlo simulation; text messaging.

DOI: 10.1504/IJSEM.2011.039434

International Journal of Services, Economics and Management, 2011 Vol.3 No.2, pp.207 - 217

Published online: 05 Apr 2011 *

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