a) Original design of the CNN web site (b) Crowdsourced adaptation Figure 1: Juxtaposing the original CNN web site viewed on a medium-size screen at 1680x1050 pixels and the best-matching, highest-ranked crowdsourced layout that uses more screen real estate and increases the amount of text visible without scrolling.
ABSTRACTThe range and growing diversity of new devices makes it increasingly difficult to design suitable web interfaces for every browsing client. We present CrowdAdapt-a context-aware web design tool that supports developers in the creation of adaptive layout solutions for a wide variety of use contexts by crowdsourcing web site adaptations designed for individual viewing conditions and preferences. We focus on one experiment we conducted for an existing news web site using CrowdAdapt (i) to explore the design space in terms of layout alternatives created by the crowd, (ii) to identify adaptation preferences with respect to different viewing situations, and (iii) to assess the perceived quality of crowd-generated layouts in terms of reading comfort and efficiency. The results suggest that crowdsourced adaptation could lead to very flexible web interfaces informed by individual end-user re-Permission to make digital or hard copies of all or part of this work for personal or classroom use is granted without fee provided that copies are not made or distributed for profit or commercial advantage and that copies bear this notice and the full citation on the first page. To copy otherwise, or republish, to post on servers or to redistribute to lists, requires prior specific permission and/or a fee.