Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/6703
Title: Explaining employees' extended use of complex information systems
Authors: Hsieh, JJPA
Wang, W
Keywords: Extended use
Technology acceptance model
IS continuance model
Infusion
Issue Date: Jul-2007
Publisher: Palgrave Macmillan
Source: European journal of information systems, July 2007, v. 16, no. 3, p. 216-227 How to cite?
Journal: European journal of information systems 
Abstract: Investments in complex information systems by organizations reached a record high of U.S.$26.7 billion in 2004. Yet, organizations seldom use these systems to the fullest extent and attain the expected return on investment. This paper addresses the issue of system underutilization by investigating Extended Use, which refers to using more system features to support one's tasks. Extended Use was examined in the nomological networks of the IS Continuance (ISC) Model and Technology Acceptance Model (TAM). A field survey was conducted in a large manufacturing firm that had successfully implemented a popular enterprise resource planning solution for more than 2 years. All paths in both ISC and TAM were statistically significant. A synthesized model was later proposed and examined in a post hoc analysis. The results indicate that the synthesized model, as compared to ISC and TAM, explained slightly higher variances in Extended Use, Perceived Usefulness (PU), and Satisfaction. Specifically, both Perceived Ease of Use (PEOU) and PU both affected Extended Use. Interestingly, Satisfaction has no direct impact on Extended Use in the presence of PU and PEOU. In contrast to most technology acceptance research, PEOU has a stronger behavioral impact than that of PU. This research provides a framework that explains Extended Use and is one of the few studies that investigates IS use behavior that exceeds simple, shallow, and routine use.
URI: http://hdl.handle.net/10397/6703
ISSN: 0960-085X
EISSN: 1476-9344
DOI: 10.1057/palgrave.ejis.3000663
Rights: © 2007 Operational Research Society Ltd. All rights reserved
This is a post-peer-review, pre-copyedit version of an article published in European Journal of Information Systems. The definitive publisher-authenticated version Hsieh, J. P. A., & Wang, W. (2007). Explaining employees' extended use of complex information systems. European Journal of Information Systems, 16(3), 216-227 is available online at: http://dx.doi.org/10.1057/palgrave.ejis.3000663
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