Towards a Usability and Error "Safety Net": A Multi-Phased Multi-Method Approach to Ensuring System Usability and Safety.
The usability and safety of health information systems have become major issues in the design and implementation of useful healthcare IT. In this paper we describe a multi-phased multi-method approach to integrating usability engineering methods into system testing to ensure both usability and safety of healthcare IT upon widespread deployment. The approach involves usability testing followed by clinical simulation (conducted in-situ) and "near-live" recording of user interactions with systems. At key stages in this process, usability problems are identified and rectified forming a usability and technology-induced error "safety net" that catches different types of usability and safety problems prior to releasing systems widely in healthcare settings.
The growing popularity of the social networking sites has presented new options for the development of learning and teaching environments to provide informal learning. In this study, the usage of social networking sites for the purpose of learning and teaching has been analyzed using the extended Theory of Reasoned Action (TRA) model. A survey has been conducted to analyze the behavior in regard to the acceptance of social media for learning and teaching and the results were systematically analyzed with linear univariate and multivariate regression analysis techniques to apply the path analysis approach. The test results indicated that TRA has significant predictive power regarding the usage of social media for learning and teaching purposes. Among external variables, only PRB showed significant influence on the research model.