Interacting With Spatial Data Warehouses Through Semantic Descriptions.
Renato Deggau, Renato Fileto, Danilo Pereira, Eugênio Andrés Díaz Merino · Biblioteca Digital da Memória Científica do INPE (National Institute for Space Research) · 2010
Users with limited GIS and BI skills usually have troubles to interact with spatial data warehouses. This paper proposes a knowledge-based GUI to help these users to find data marts related to domain specific keywords, understand their contents, and do spatial information analysis. The proposed GUI presents ontological descriptions of the structure, contents, and information analysis capabilities of the data marts. It supports the selection of spatial operators and aggregation functions to compose SOLAP queries. The tables, graphs and maps presented in response to these queries allow further user interaction to gradually refine the analysis. An empirical usability test has been applied to the proposed GUI, in a case study for the agriculture domain, and the results suggest that it meets the users needs.