People with Physical Disabilities,' Treviranus and her team stressed that being able to have physical contact with computers is of essential importance for people with disabilities; they researched a large array of cutting edge technological solutions that allowed users with a variety of physical impairments to use and interact with computer technology. The paper anticipates changing input devices like keyboards and mice to technology involving switches to allow for the physical difficulties of users. Developing from the notion that the disabled require interaction with technology, Treviranus goes on to postulate that the alternative technological techniques that are being developed to be used with computers be as easy to use as the control mechanisms they replace such as speech or touch-typing for example. This idea is further developed with suggestion that computer interfaces fit each individual user no matter where they encounter the interface – from public workstation to online learning environments. For the Web Accessibility Initiative, in 1999, Treviranus co-edited Authoring Tool Accessibility Guidelines. This text helped web developers to, firstly, design authoring tools that create web content that is accessible and, as well, secondly, to help them to design accessible authoring tool user interfaces. By 2008, Treviranus was able to outline how important authoring tools are to the process of creating accessible websites. By using tools that adhere to the standards established by the W3C Authoring Tool Accessibility Guidelines (ATAG), developers of websites who are not familiar with accessibility concerns, or who are not enthusiastic about helping people with disabilities, end up producing accessible sites because the tools they are using are pre-set to create accessible content by default. To further understand the need for accessible technology, for example, Treviranus describes the adaptation and substitution of ordinary input mechanisms like keyboards and mice with switches that allow the physically disabled to have access to digital technology. Selected works Peer-reviewed journals Vanderheiden, G. C., Treviranus, J., & Chourasia, A. (2013, October). The global public inclusive infrastructure (GPII). In Proceedings of the 15th International ACM SIGACCESS Conference on Computers and Accessibility (p. 70). ACM. Vanderheiden, G. C., Treviranus, J., Gemou, M., Bekiaris, E., Markus, K., Clark, C., & Basman, A. (2013). The evolving global public inclusive infrastructure (GPII). In Universal access in human-computer interaction. Design methods, tools, and interaction techniques for eInclusion (pp. 107–116). Springer Berlin Heidelberg. Vanderheiden, G., & Treviranus, J. (2011). Creating a global public inclusive infrastructure. In Universal