Prototyping versus specifying: a multiproject experiment
IEEE Transactions on Software Engineering
Global-software development lifecycle: an exploratory study
Proceedings of the SIGCHI Conference on Human Factors in Computing Systems
Estimating design effort for GE hydro projects
Computers and Industrial Engineering - Special issue: Selected papers from the 27th international conference on computers & industrial engineering
Journal of Systems and Software
Comparison of estimation methods of cost and duration in IT projects
Information and Software Technology
Generalized linear model-based expert system for estimating the cost of transportation projects
Expert Systems with Applications: An International Journal
Improved estimation of software project effort using multiple additive regression trees
Expert Systems with Applications: An International Journal
Management Information Systems
Management Information Systems
Developing a practical framework for ERP readiness assessment using fuzzy analytic network process
Advances in Engineering Software
ERP data sharing framework using the Generic Product Model (GPM)
Expert Systems with Applications: An International Journal
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Since the software industry significantly differs from traditional manufacturing in numerous ways, the development effort of software products originate mainly from human resources. In particular, enterprise resource planning (ERP) software is a virtual intelligence and customer service-oriented product. Software developers are thus concerned with how to estimate ERP project effort during the developmental stage. Despite significant advances in procedures that facilitate project management, product managers in the software industry still encounter guesswork and subjective judgment-related problems, frequently resulting in inaccurate estimates. No concrete functional relationship exists between effort estimation and the design requirements of ERP system development. Companies can thus lose their market competitiveness during the marketing phase of attracting customers owing to inefficient and ineffective responses. In addition to reviewing pertinent literature on estimation approaches, this work adopts information system projects developed by the primary Taiwan-based ERP solutions provider as an empirical database. Furthermore, based on analysis of recent ERP software projects, this work presents a feasible estimation model to satisfactorily estimate the person-hour of an ERP system development project efficiently. Based on systematic modeling, the proposed estimation model enables project decision makers or sales departments to react immediately to preliminary project cost with rate per person-hour, ultimately increasing their decision making quality, estimation efficiency and accuracy.