Web Services Inventory

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

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

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