¹National Yunlin University of Science and Technology/Information Management, Douliou City, Taiwan
²Transworld University/Information Management, Douliou City, Taiwan
³Tatung Institute of Commerce and Technology/Digital Content Design, Chiayi City, Taiwan

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Abstract—Determination of requirements is critical for development of a new information system prior to the IS design. A good system design not only fulfills user needs, but is also a required concern for specific and future development in industry. Past researches show many tools have been introduced to generate information system requirements; however, they lack cause-effect relationships among factors. The purpose of this study is to identify system requirements and their cause-effect relationship determination process to serve emerging needs. The goal of this study is to assess potential organization needs in order to get a better foundation for system development and effectiveness. Case study and mental models approach were used to demonstrate the relationships between the requirements for a new system. The results indicate leading vendor effect, management support, and user needs are important for system development. These findings should heighten organization information systems selecting and investment decisions.

Index Terms—System requirements determination, System development, Case study, System effect, Mental models

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Cite: Chien-Chung Tu, Kwoting Fang, Chwen-Yea Lin, "A Cognitive Approach to IS Requirement Analysis: Mental Model Building from Case Study," Journal of Software vol. 6, no. 4, pp. 643-650, 2011.