A Preliminary Study of Metrics and Methods for Readable Spatial OLAP Maps: VGI4Bio Case Study

Spatial OLAP systems are GeoBusiness Intelligence systems allowing the exploration and analysis of huge volume of spatial data by means of tabular, graphic and cartographic displays. Although map readability is crucial for decision-making processes, readability of SOLAP maps has not been deeply investigated. In this paper, a initial study on readability metrics for SOLAP maps and methods to improve them are presented and discussed. The results are validated by using a real case study concerning farmland biodiversity analysis. Some open issues associated to this topic are also discussed.