???The original publication is available at www.springerlink.com???. Copyright Springer. [Full text of this article is not available in the UHRA]The Cognitive Dimensions of Notations framework has been created to assist the designers of notational systems and information artifacts to evaluate their designs with respect to the impact that they will have on the users of those designs. The framework emphasizes the design choices available to such designers, including characterization of the user???s activity, and the inevitable tradeoffs that will occur between potential design options. The resulting framework has been under development for over 10 years, and now has an active community of researchers devoted to it. This paper first introduces Cognitive Dimensions. It then summarizes the current activity, especially the results of a one-day workshop devoted to Cognitive Dimensions in December 2000, and reviews the ways in which it applies to the field of Cognitive Technology

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A decade ago, Castells argued that most surveillance would have no directly damaging consequences. Heproposed that what should be of more concern were the unpredictable consequences of our over-exposed lives, the lack of explicit rules for on-line behaviour and how this then was interpreted by a 'multitude of little sisters' who process and store this information, forever (Castells 2001:180

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In this paper, our proposition is that longitudinal research, such as diary studies, can be used to uncover the core needs of those users who are over 65 and experience difficulty with digital interfaces. Through a two year research project, we have explored the barriers to adopting technology, patterns in monitoring health and finally, how people living with Dementia and their carers might use technology to improve the quality of their life.Through understanding what these core issues are, we propose that any virtual reality technology can be sufficiently aligned to the mental models of over 65s, so as to be completely inclusive of their needs. By using HCI and UX research approaches, both public and commercial digital agencies, at the forefront of digital innovation, can produce digital artefacts to alleviate barriers to digital adoption in an aging population.We submit this summary of our research in contribution to Human Centred Design (HCD) for Intelligent Environments workshop at the British HCI Conference, as we are keen to receive feedback and participate in discussions around this area, particularly because some of our research has suggested VR is the next logical step in supporting an aging population.

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