QualEvS4Geo: A peer-to-peer system architecture for semi-automated quality evaluation of geo-data in SDI

Evaluating the quality of geospatial dataset is an important aspect that needs to be considered in order to improve the quality of results in any project. This issue has become even more critical these days due to the ever growing platforms and services that produce and share Volunteered Geographic Information (VGI) in the world wide domain. In this paper, we introduce the architecture of QualEvS4Geo; a web processing service for evaluating the quality of geo-data in Spatial Data Infrastructure (SDI). QualEvS4Geo is supposed to utilize a wide range of technologies, tools and knowledge bases in order to hamper interoperability between various services, each of which evaluating geo-datasets based on a certain data quality element and sub-element. This paper proposes a peer-to-peer infrastructure for enabling a universal geo-data quality evaluation service, which will enable end-users with different needs in various application domains to evaluate their geo-datasets through a single interface. Requirements are derived, the system architecture is proposed and implementation aspects are discussed.