34,388 research outputs found
Towards a kansei-based user modeling methodology for eco-design
We propose here to highlight the benefits of building a framework linking Kansei Design (KD), User Centered Design (UCD) and Eco-design, as the correlation between these fields is barely explored in research at the current time. Therefore, we believe Kansei Design could serve the goal of achieving more sustainable products by setting up an accurate understanding of the user in terms of ecological awareness, and consequently enhancing performance in the Eco-design process. In the same way, we will consider the means-end chain approach inspired from marketing research, as it is useful for identifying ecological values, mapping associated functions and defining suitable design solutions. Information gathered will serve as entry data for conducting scenario-based design, and supporting the development of an Eco-friendly User Centered Design methodology (EcoUCD).ANR-ECOUS
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NAVI: Novel authentication with visual information
Text-based passwords, despite their well-known drawbacks, remain the dominant user authentication scheme implemented. Graphical password systems, based on visual information such as the recognition of photographs and / or pictures, have emerged as a promising alternative to the aggregate reliance on text passwords. Nevertheless, despite the advantages offered they have not been widely used in practice since many open issues need to be resolved. In this paper we propose a novel graphical password scheme, NAVI, where the credentials of the user are his username and a password formulated by drawing a route on a predefined map. We analyze the strength of the password generated by this scheme and present a prototype implementation in order to illustrate the feasibility of our proposal. Finally, we discuss NAVIâs security features and compare it with existing graphical password schemes as well as text-based passwords in terms of key security features, such aspassword keyspace, dictionary attacks and guessing attacks. The proposed scheme appears to have the same or better performance in the majority of the security features examined
Usability engineering for GIS: learning from a screenshot
In this paper, the focus is on the concept of Usability Engineering for GIS â a set of techniques and methods that are
especially suitable for evaluating the usability of GIS applications â which can be deployed as part of the development
process. To demonstrate how the framework of Usability Engineering for GIS can be used in reality, a screenshot study is
described. Users were asked to provide a screenshot of their GIS during their working day. The study shows how a simple
technique can help in understanding the way GIS is used in situ
Practical Strategies for Integrating a Conversation Analyst in an Iterative Design Process
We present a case study of an iterative design process that includes a
conversation analyst. We discuss potential benefits of conversation analysis
for design, and we describe our strategies for integrating the conversation
analyst in the design process. Since the analyst on our team had no previous
exposure to design or engineering, and none of the other members of our team
had any experience with conversation analysis, we needed to build a foundation
for our interaction. One of our key strategies was to pair the conversation
analyst with a designer in a highly interactive collaboration. Our tactics have
been effective on our project, leading to valuable results that we believe we
could not have obtained using another method. We hope that this paper can serve
as a practical guide to those interested in establishing a productive and
efficient working relationship between a conversation analyst and the other
members of a design team.Comment: 11 page
The Use of a Cap-mounted Tri-axial Accelerometer for Measurement of Distance, Lap Times and Stroke Rates in Swim Training
This paper will report some of the findings from a trial which recorded accelerometer data from six elite level swimmers (three female and three male, varying primary event stroke and distance) over the course of a regular 15 week training block. Measurements from a head-mounted accelerometer are used to determine when the athlete is swimming, marking of turning points (and therefore distance and lap-time measurements), and is processed by frequency analysis to determine stroke-rate. Comparison with video where available, and with training plans and literature where not, have proven this method to be accurate and reliable for determining these performance metrics. The primary objective of this project was to develop a low-cost, simple and highly usable system for use in swim coaching, feedback from elite coaches has indicated that development of this could be an extremely useful addition to their training regime
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