Te King Chien - Department of Information Management, National Formosa University, Yunlin, Taiwan
Hung Lun Chang - Department of Information Management, National Formosa University, Yunlin, Taiwan
Hon Yu Ma - Business Division, Ten-In Food Co., Ltd, Chiayi, Taiwan
Wen Ling Lai - General Education, Takming University of Science and Technology, Taipei, Taiwan

To enhance the effectiveness of using various information systems and then provided instant information/strategies, even decreased the operating costs, enterprise usually carried out internal and external information integration activities. Although many scholars put forward various theory and suggestions, these are so conceptual and onesided that can’t effectively help project manager implementing information integration activity successfully. The reason is that enterprise lacks integrated experience and is different in various systems. As this result, enterprise can’t effectively grasp conditions of information environment, blueprint for project, inadequate situation and integrated activities. Even enterprise can’t systematically control integration structure to promote the success rate of information integration activity. Therefore, this research (1) uses literatures and qualitative methods to build the structure of the key success factors of information integration activity , and makes enterprise understand the operating activities and the key factors; (2) proposes a causal order diagram of activity categories to show factors’ implementation order and causality; (3) establishes a weight table of the key factors with AHP method to display the different importance of each key factor. It is believed that the research results can not only provide enterprises a systematic structure of information integration activity and the best practice. At the same time, the results can integrate practical application and academic research to give a new direction to follow-up researchers.

Information Integration, Key Success Factor, Qualitative Interviews Method, AHP, Causality diagram