Avaliação da qualidade de dados geoespaciais: uma abordagem moderna

Abstract

Spatial information is essential for urban planning, public services, management and security. To be successfully a spatial data needs to be aware of the quality of information. In a context of popularization through the internet, increased demand and widespread use of digital spatial data, it is necessary specific research on data quality. This paper proposes the qualification of information given by the Brazilian Institute of Geography and Statistics, National Spatial Data Infrastructure and the Center of Remote Sensing of the Federal University of Minas Gerais based on the analysis of positional accuracy standards, accuracy attribute, completeness, metadata and logical consistency. It is also evaluated the web design. By selecting three maps of each institution it was rated the quality level of the information provided by them, in order to better understand the rules, data quality standards, metadata, the mistakes and how the violation of these elements impair the quality and reduce the credibility of the information provided.