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ACSW Frontiers '05 Proceedings of the 2005 Australasian workshop on Grid computing and e-research - Volume 44
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Healthcare organizations are struggling to meet industry best practices for information security as well as complying with regulatory requirements. Single sign-on technology is emerging as a leading technology for password authentication management and promises to improve security while curbing system maintenance costs. While the technology seems to be a simple viable solution for authentication, when placed in context, many socio-technical complexities emerge. One of these complexities is that of the mismatch between the users' mental models and the system model. This study was a 15-month ethnographic field study that followed the implementation of a single sign-on system in a hospital environment. It resulted in the finding that the misaligned mental models caused difficulties not only for the user but for the system administrators. The findings also indicate that not only was the user's mental model of the technology inaccurate, but the presentation of the technology by the information technology group contributed to this misaligned understanding. The end result was dissatisfaction with the new technology for both end users and the system administrators. In order to address the critical issue of mental model misalignment in the implementation of SSO technology, practitioners must first gain an understanding of the preexisting mental models had by the target users regarding authentication and then use this information to guide implementation of the new technology.