Abstract

Different elements of Web-GIS usability have different impact during design and usability evaluation of the Web-GIS websites. It is important therefore to prioritize Web-GIS usability elements based on their impact on usability. The techniques used for prioritizing usability elements of Web-GIS are important to developers of Web-GIS systems during design and usability evaluation. Existing techniques used to prioritize elements of usability were compared, with a view of proposing appropriate method for prioritizing Web-GIS usability elements. The research compared the compurank method-which is based on an algorithm, scenario-based ranking method (SBRM) and the Multicriteria user satisfaction analysis (MUSA). The MUSA method was found to be the most appropriate method that developers can use to prioritize Web-GIS usability elements because it involves collecting user needs directly from the users.

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