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RM-ODP for WPS Process Descriptions

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RM-ODP for WPS Process Descriptions

  1. 1. RM-ODP for WPS Process Descriptions Theodor Foerster & Bastian Schäffer Geoinformatik 2011, Münster, Germany
  2. 2. 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>
  3. 3. 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>
  4. 4. 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
  5. 5. 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
  6. 6. <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
  7. 7. 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
  8. 8. WPS Profile Extension
  9. 9. Walkthrough WPS user URN resolver WPS WPS Profiles
  10. 10. 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>
  11. 11. 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>

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