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Web Services Inventory

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http://capitawiki.wustl.edu/index.php/20041231_Web_Services_Survey_an_Inventory_Background%2C_Goals_and_Status

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Web Services Inventory

  1. 1. Web Services Survey an Inventory Background, Goals and Status 14th ESIP Federation Assembly Meeting Renaissance Mayflower Hotel Washington, DC January 4-6, 2005
  2. 2. Background and Purpose <ul><li>There is a rapidly growing array of distributed services for accessing, processing, visualizing, cataloging, discovering or otherwise manipulating Earth Science information through computer-computer interfaces. </li></ul><ul><li>The landscape is currently obscured by the lack of a suitable inventory and by the hype associated with web services </li></ul><ul><li>Purposes of the WS Inventory/Survey </li></ul><ul><li>assess the size and characteristics of the computer-accessible (WS) resource pool </li></ul><ul><li>expose the main computer-computer WS linking protocols used and </li></ul><ul><li>get a rough assessment of the current WS usage environments. </li></ul><ul><li>Beneficiaries: </li></ul><ul><li>ESIP </li></ul><ul><li>Infusion DSWG workgroup </li></ul><ul><li>other DSWG workgroups, (e.g. Reuse and Standards) </li></ul><ul><li>It should also aid the creation and diffusion of ES knowledge for Achieving a Sustainable Planet (ESIP) </li></ul>
  3. 3. WS Inventory: Features and Approach <ul><li>WS Inventory Survey Features </li></ul><ul><li>Flexible to capture the varied WS technologies and their use environments </li></ul><ul><li>Simple for easy participation </li></ul><ul><li>Approach to the WS Inventory Content Creation </li></ul><ul><li>The content of the WS Inventory collected from the community through a web-form. </li></ul><ul><li>Subsequent versions of this inventory could incorporate more specifics for service binding </li></ul><ul><li>The content could migrate to formal WS Discovery services such as GCMD, ECHO and others. </li></ul><ul><li>Current task: Designing the web-form to be filled out by the participating members </li></ul><ul><li>Latest draft Web Service Inventory page on the Infusion WG website </li></ul><ul><li>http://www.sciencedatasystems.org/seeds/wg/infusion/Lists/Service%20Inventory/AllItems.aspx </li></ul><ul><li>Discussion thread for web-form design WS Invedntory Form Design by the WG </li></ul><ul><li>http://www.sciencedatasystems.org/seeds/wg/infusion/Lists/Web%20Services%20Discussion/AllItems.aspx </li></ul><ul><li>Select the node in the thread </li></ul><ul><li>Press Post Reply (remember to log in, so we know who you are). </li></ul>
  4. 4. Tech. Infusion WG, WS Subgroup
  5. 5. WS Inventory/Survey Discussion Thread
  6. 6. Draft WS Inventory Record
  7. 7. Draft WS Inventory Record
  8. 8. Draft WS Inventory
  9. 9. WS Inventory Form: Description, Contact, Example
  10. 10. WS Inventory Form: Interface, Clients, Tools
  11. 11. WS Inventory Form: Functions, Topic (GCMD) Science Domains
  12. 12. WS Inventory as an Open, Living Resource? <ul><li>Relationship to other Catalogs (Social Behavior) </li></ul><ul><ul><li>Not to be rude </li></ul></ul><ul><ul><li>Not just coexisting </li></ul></ul><ul><ul><li>Cooperative, part of a value-chain </li></ul></ul>OpenDAP Cat <ul><li>Data collection through SDS SharePoint </li></ul><ul><li>Inventory extension @ ESIP (SOAP) </li></ul><ul><li>Usage at GCMD & EDCHO? </li></ul>GCMD ESIP Cat OGC Cats ECHO Google <ul><li>Stages of Cooperation </li></ul><ul><ul><li>Open content for connection by others - sharing </li></ul></ul><ul><ul><li>Connecting through proxies & gateways </li></ul></ul><ul><ul><li>Semantic Interoperability </li></ul></ul>
  13. 13. Scope of Web Services Subgroup, 2005 <ul><li>Prepare an inventory of web services and their interfaces </li></ul><ul><ul><li>The WS landscape is changing rapidly. New services are emerging </li></ul></ul><ul><ul><li>We need a snapshot of the service landscape, particularly in the REASoN projects </li></ul></ul><ul><ul><li>But what ‘services’ do we include? SOAP, OPeNDAP, OGC, files? </li></ul></ul><ul><li>Assess WS architectures for data access AND analysis </li></ul><ul><ul><li>We don't quite know how to link distributed WSs into coherent science applications </li></ul></ul><ul><ul><li>An open dialog on the linking/architectural issues would speed up the group learning. </li></ul></ul><ul><ul><li>Issues: e.g. Architecture without rigid architecture </li></ul></ul><ul><li>Demonstrate web service linking </li></ul><ul><ul><li>Several REASoNs have a goal of facilitating satellite data flow and processing </li></ul></ul><ul><ul><li>A narrow pilot project could demonstrate satellite data access/processing/analysis/delivery </li></ul></ul><ul><ul><li>Issues: Which REASoN projects? Data products? Services? Architecture(s)? </li></ul></ul><ul><li>Further ideas/feedback on the scope of the WS subgroup will be appreciated. </li></ul>

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