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Modeling the Switching Behavior of Multiple-SIM GSM
Subscribers in Nigeria Using Markov Chain Analysis
--E O Oyatoye, S O Adebiyi and B B Amole
This paper examines the analytical modeling of mobile phone subscribers’ switching behavior among the four major mobile telecommunication network service providers in Nigeria, using primary data collected through questionnaire from the mobile-phone subscribers of three higher institutions in Lagos, Nigeria. Data collected through the questionnaire was collated and structured to suit the modeling framework of Markov chain process. The findings reveal that many subscribers still hold multiple SIMs of network providers, unlike other countries where people have embraced Mobile Number Portability (MNP), thereby compelling the network providers to improve their quality of services to retain existing subscribers and attract potential customers who will switch from other service providers. © 2015 IUP. All Rights Reserved.
Analysis of Project Success Issues:
The Case of a Manufacturing SME
--Sudhakar Dasari, Nasina Jigeesh and A Prabhukumar
The success of a project can be measured in different dimensions, the most familiar and well proven ones being time, cost and quality. Completion of scheduled project activities and delivery of the total project in time are very important from the perspective of both the customer and developing organization, while the same done within budget is important from the perspective of the developer. All these accomplishments along with embedding quality into the project lead to the overall success of a project. Small and Medium-sized Enterprises (SMEs) take up most assignments as projects and strive to complete them to the satisfaction of customers in order to maintain a competitive edge. The paper focuses on the criteria to complete the projects within time and budget by surveying and studying national and international projects of a manufacturing SME in Hyderabad, India. The findings provide support for proper utilization of project management tools and control of projects that are lagging behind time and cost in those SMEs which may not be in a position to procure expensive project management tools. © 2015 IUP. All Rights Reserved.
The Impact of Cannibalization on Product Returns
for Remanufacturing Under Different Demand Scenarios
--Siddhartha Kushwaha and Sourabh Bhattacharya
This study is an effort to understand the impact of cannibalization on product return under different demand scenarios during product life cycle. A system dynamic model is used to estimate product return for a hypothetical product P. The results of the study reveal that product return increases with increasing product demand during growth stage under the exposure of cannibalization, and product return decreases with increase in cannibalization during maturity stage. Original Equipment Manufacturers (OEMs) can venture into remanufacturing during growth stage and it can lead to capital investment saving at initial product life cycle stage. However, during maturity stage venturing is not recommended. © 2015 IUP. All Rights Reserved.
Electrical Transmission Line Installation Projects:
A Six Sigma Approach for Project Risk Management
--Shwetank Parihar, Chandan Bhar and Randhir Kumar
The study is based on designing and analyzing a methodology that improves the project risk management process by having efficient monitoring system. The monitoring should be based on the risk sensitivity of the various parameters of the project. These parameters, derived through exhaustive literature survey and expert advice, are given special references while monitoring the project for risk analysis. Six Sigma level of accuracy is conceptualized in this study for electrical transmission line installation projects. On analyzing the possibility of risk occurrence on Sigma levels for each pre-decided parameter, it is found that technical parameters have got the maximum number of risks associated with them. The methodology proposed in the paper provides a guideline for risk monitoring for electrical transmission line installation projects. © 2015 IUP. All Rights Reserved.
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