Theory-Informed Design and Evaluation of an Advanced Search and Knowledge Mapping System in Nanotechnology.

Author List: Dang, Yan; Zhang, Yulei; Chen, Hsinchun; Brown, Susan A.; Hu, Paul Jen-Hwa; Nunamaker, Jr., Jay F.;
Journal of Management Information Systems, 2012, Volume 28, Issue 4, Page 99-128.
Effective search support is an important tool for helping individuals deal with the problem of information overload. This is particularly true in the field of nanotechnology, where information from patents, grants, and research papers is growing rapidly. Guided by cognitive fit and cognitive load theories, we develop an advanced Web-based system, Nano Mapper, to support users' search and analysis of nanotechnology developments. We perform controlled experiments to evaluate the functions of Nano Mapper. We examine users' search effectiveness, efficiency, and evaluations of system usefulness, ease of use, and satisfaction. Our results demonstrate that Nano Mapper enables more effective and efficient searching, and users consider it to be more useful and easier to use than the benchmark systems. Users are also more satisfied with Nano Mapper and have higher intention to use it in the future. User evaluations of the analysis functions are equally positive.
Keywords: cognitive fit; cognitive load; information system evaluation; knowledge mapping; searching; visualization
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#295 0.165 task fit tasks performance cognitive theory using support type comprehension tools tool effects effect matching types theories modification working time
#217 0.156 search information display engine results engines displays retrieval effectiveness relevant process ranking depth searching economics create functions incorporate low terms
#174 0.154 use support information effective behaviors work usage examine extent users expertise uses longitudinal focus routine revealed volume constructs contributes operations
#157 0.110 evaluation effectiveness assessment evaluating paper objectives terms process assessing criteria evaluations methodology provides impact literature potential important evaluated identifying multiple
#283 0.101 interface user users interaction design visual interfaces human-computer navigation human need cues studies guidelines laboratory functional developed restricted know guided
#51 0.072 results study research experiment experiments influence implications conducted laboratory field different indicate impact effectiveness future participants evidence test controlled involving
#32 0.066 research studies issues researchers scientific methodological article conducting conduct advanced rigor researcher methodology practitioner issue relevance findings validation papers published