Academic Track Paper

Geoprocessing is a basic element in spatial data infrastructure (SDI). As more and more geoprocessing functions are available as Web Services in SDI, the quality of geoprocessing services has become an important concern in providing effective geoprocessing in a distributed environment. This paper introduces the design and implementation of GeoQoS to support QoS-aware geoprocessing on the Web. Key issues, including QoS attributes, QoS evaluation for geoprocessing services, and QoS-aware optimization of geoprocessing chains, are addressed. The results are published as an open source tool to facilitate QoS-aware geoprocessing on the Web.