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RM-ODP for WPS Process Descriptions Theodor Foerster & Bastian Schäffer Geoinformatik 2011, Münster, Germany
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OGC Web Service Testbed 7 <ul><li>Real-world interoperability </li></ul><ul><ul><li>Clients, vendors, implementations, use cases </li></ul></ul><ul><li>OWS-7 threads </li></ul><ul><ul><li>Sensor Fusion Enablement </li></ul></ul><ul><ul><li>Aviation </li></ul></ul><ul><ul><li>Feature and Decision Fusion </li></ul></ul><ul><li>http://www.opengeospatial.org/projects/initiatives/ows-7 </li></ul>
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Problem <ul><li>Any process through WPS </li></ul><ul><li>Syntatic interoperability </li></ul><ul><ul><li>Uniform XML Message encoding </li></ul></ul><ul><li>Semantic interoperability missing </li></ul><ul><ul><li>Automatic discovery not supported </li></ul></ul><ul><ul><li>Non-uniform textual descriptions </li></ul></ul>
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Web Processing Service <ul><li>Geoprocessing in SDIs </li></ul><ul><ul><li>From geodata to geoinformation </li></ul></ul><ul><ul><li>WPS v 1.0 since 2007 </li></ul></ul>WPS Process 1 Process 2 Process n GetCapabilities DescribeProcess Execute
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WPS Profiles <ul><li>Profiles describe common functionality </li></ul><ul><ul><li>WPS Process descriptions </li></ul></ul><ul><ul><li>Linked through URI </li></ul></ul><ul><ul><li>Textual description </li></ul></ul><ul><ul><li>Same profile same semantics </li></ul></ul>Profile topic Editors Vector & raster based analysis Nash Analysis of 3D data Lanig & Zipf Geomarketing Walenciak & Zipf Decision support Ostlaender Feature & statistical analysis Foerster & Schaeffer
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<ul><li>Object modeling </li></ul><ul><li>Distribution transparency </li></ul><ul><li>Conformance </li></ul><ul><li>Viewpoints </li></ul>Reference Model for Open Distributed Processing
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Uniform textual descriptions <ul><li>Based on RM-ODP viewpoints </li></ul><ul><ul><li>Areas of concerns </li></ul></ul><ul><ul><li>Concepts </li></ul></ul>Viewpoint Enterprise Information Computation Technology Areas of concern Objectives of processes Information models Logical decomposition of processes Technical artifacts and solutions Main concepts Artifacts, roles Data schemas Computational interfaces
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Walkthrough WPS user URN resolver WPS WPS Profiles
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Benefits <ul><li>Semantic interoperability of process descriptions </li></ul><ul><ul><li>Uniform textual descriptions based on RM ODP </li></ul></ul><ul><li>Extension for RM ODP </li></ul><ul><li>Exemplary walkthrough </li></ul><ul><li>Feature Statistical Analysis ER </li></ul><ul><ul><li>OGC 10-074 </li></ul></ul>
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Thanks for your attention! <ul><ul><li>Theodor Foerster & Bastian Schäffer </li></ul></ul><ul><ul><li>t [email_address] </li></ul></ul><ul><ul><li>[email_address] </li></ul></ul><ul><li>ifgi.uni-muenster.de </li></ul><ul><li>swsl.uni-muenster.de </li></ul><ul><li>www.52north.org/wps </li></ul>