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Usability evaluation of web-based GIS: case study

Dependency of the majority of mankind activities on information and communication technologies in general and on geographic information is increasing rapidly. This is one of the reasons why usability of specialized software tools (GIS) belongs today to the top priorities of managers and users of information technologies. This requirement concerns geographic information systems in general but it principally concerns Web-based GIS sites because spatial data and tools for their utilization are nowadays in great demand by end-users too. Web-based GIS sites can provide an easy-to-use solution to the end users but they must be properly designed. Case study evaluating usability of three different Czech Web-based GIS applications by means of questionnaire-based usability user evaluation was done. Results are discussed and some recommendations how user interface of Web-based GIS should be designed, are concluded.