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

• 成果类型: Article
• 署名作者: Dang, Yan; Zhang, Yulei; Chen, Hsinchun; Brown, Susan A.; Hu, Paul Jen-Hwa; Nunamaker, Jay F., Jr.
• 署名单位: Northern Arizona University; University of Arizona; University of Arizona; Utah System of Higher Education; University of Utah; University of Arizona
• 刊物名称: JOURNAL OF MANAGEMENT INFORMATION SYSTEMS
• ISSN/ISSBN: 0742-1222
• DOI: 10.2753/MIS0742-1222280405
• 发表日期: 2012
• 页码: 99-127
• 关键词: cognitive fit; user acceptance; information-technology; science; network; IMPACT; load; web; Visualization; comprehension

摘要

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.