The Extension of TAM Model in the Use of Point of Sale (Pos) in Minimarkets in Padang, Indonesia

Abstract

The use of information technology system in the form of Point of Sale (POS) becomes essential in assisting operational minimarket. The purpose of this study is to extend the original TAM model to investigate factors affecting the behavior of Point of Sales (POS) users. Information quality of POS and subjective norm is conceptualized as an external variable that affects POS acceptance through perceived usefulness and perceived ease of use. The number of respondents who participated in this study was 270 employees of minimarket in Padang. The results show that the quality of information positively affects subjective norms, perceived usefulness and attitude, as well as subjective norms positively affect perceived ease of use, perceived usefulness and attitude. Perceived usefulness mediates the full perceived ease of use effect on attitude. Lastly, attitude has a positive effect on actual use. The results of this study show that the quality of relevant and accurate information and opinions of colleagues are taken into consideration for employees in using POS. Keywords: Information Quality, Point of Sale, Subjective Norm, TAM

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