Title :
Coordination Through Geospatial Web Service Workflow in the Sensor Web Environment
Author :
Yu, Genong ; Di, Liping ; Zhang, Bei ; Wang, Huilin
Author_Institution :
Center for Spatial Inf. Sci. & Syst., Georege Mason Univ., Greenbelt, MD, USA
Abstract :
The Sensor Web connects live sensors and Earth Science models (ESM). A workflow is one approach for designing, implementing, and constructing a live link between sensors and ESM. The Sensor Web consists of many individual Web services. A workflow coordinates them to enable bi-directional connectivity between sensors and ESMs. This study uses Business Process Execution Language as the base scripting language to design, author, deploy, and execute workflows. Message-level coordination mechanisms are developed, implemented, and demonstrated in two scenarios-bird migratory modeling and georeferenceable imagery workflow. The advantage of message-level coordination is short-cutting the data flow.
Keywords :
Web services; geophysical techniques; geophysics computing; information resources; workflow management software; Business Process Execution Language; Earth Science models; Sensor Web; base scripting language; bidirectional connectivity; bird migratory modeling; data flow short-cutting; georeferenceable imagery workflow; geospatial Web service workflow; live sensors; message-level coordination mechanisms; Sensor web; earth science model; event driven system; web service; workflow;
Journal_Title :
Selected Topics in Applied Earth Observations and Remote Sensing, IEEE Journal of
Conference_Location :
6/7/2010 12:00:00 AM
DOI :
10.1109/JSTARS.2010.2049477
