Is a Map More Than a Picture? The Role of SDCC Technology, Subject Characteristics, and Problem Complexity of Reading and Problem Solving

This research investigated how the use of a spatial decision support system (SDSS)—a type of geographic information system (GIS)—influenced the accuracy and efficiency of different types of probtem sotvers (i.e.. professionals versus students) completing problems of varied complexity. This research—the first to simultaneously study these variables—examined subjects who completed a probtem involving spatially-referenced information The experiment was guided by a research model synthesized from various perspectives , including the theory of cognitive fit. prior research on map reading and interpretation, and research examining subject expertise and experience. The results are largely supportive of the research modet and demonstrate that SDSS. an increasingty important ctass of management decision-making technology, increased the efficiency of users working on more compiex problems. Professionals were found to be more accurate but less efficient than students: however. professionals who used the SDSS were no more accurate than professionals using paper maps. Need for cognition, a construct that focuses on an individual's willingness lo engage in probtem sotving tasks, was found to be marginatly related to accuracy. The implications of these findings for researchers and practitioners are presented and discussed. MIS Quarterly Vol. 24 No 4. pp 601-629/December 2000 60 Mennecke et at /Is a Map More than a Picture?