Parallel Session 8.1- “Data Usability ” 653 How to Increase Usability of Spatial Data by Finding a Link between User and Data

Usability is the question of how well users can utilize a functionality of a product or solution. As a new facet to the customary usability attributes the Information Quality is added, describing the importance of the needed data for the user. It enables an optimized adaptation of data quality to the user needs. If the underlying data is not sufficient for the user, the usability of a solution is eminently disrupted. Spatial data can be analyzed with this approach by the requirements from the point of view of the user. The resulting user requirements are applied to data and data attributes, and are indexed by priority and importance to insert them in a pyramid, based on the Maslow Schemata. Higher levels of needs are dormant until lower level needs are satisfied. By including the aspects of Information Quality for the user, the usability and acceptance of a system is increased