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Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture

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Presented at AGU Fall Meeting 2012

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Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture

  1. 1. Cool Apps: Building CryosphericData Applications With Standards-Based Service Oriented ArchitectureJulia A Collins, Ian Truslove, Brendan W Billingsley, JosephOldenburg, Mary Jo Brodzik, Scott Lewis, Miao Liu
  2. 2. Outline 1. Introduction 2. The Web, circa 2012 3. 3-tier and Service Oriented Architectures (SOA) 4. Service standards 5. NSIDC apps 6. Proposal Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  3. 3. INTRODUCTION Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  4. 4. Introduction The National Snow and Ice Data Center (NSIDC) supports research into our worlds frozen realms: the snow, ice, glaciers, frozen ground, and climate interactions that make up Earths cryosphere. NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere. Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  5. 5. Introduction The National Snow and Ice Data Center (NSIDC) supports research into our worlds frozen realms: the snow, ice, glaciers, frozen ground, and climate interactions that make up Earths cryosphere. NSIDC manages and distributes scientific data, creates tools for data access, supports data users, performs scientific research, and educates the public about the cryosphere. Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  6. 6. Introduction distributes scientific data creates tools for data access supports data users Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  7. 7. Introduction distributes scientific data creates tools for data access supports data users Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  8. 8. Introduction Distribution of scientific data The Web Supports Tools for data users data access Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  9. 9. Introduction Distribution of scientific data 3rd party tools The Web Supports Tools for data users data access Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  10. 10. THE WEB Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  11. 11. Web Applicationshttp://blog.fogcreek.com/the-trello-tech-stack/ Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  12. 12. 3-Tier Web Architecture Presentation JavaScript Web client Business Logic Application Server Data Data Abstraction / ORM Database Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  13. 13. 3-Tier Web Architecture The Problem: Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  14. 14. 3-Tier Web Architecture The Problem: Tight Coupling Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  15. 15. 3-Tier Web Architecture The Problem:1 user interface requires 1 app stack Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  16. 16. 3-Tier Web Architecture The Problem: …and perhaps portal proliferation problem Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  17. 17. 3-Tier Web Architecture Extending… Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  18. 18. 3-Tier Web Architecture Bridge New app Other data Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  19. 19. 3-Tier Web Architecture The Problem: 1 user interface requires ≥1 app stack (hopefully in the same language) Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  20. 20. Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  21. 21. SOA Web Architecture Client App 1 XML JSON System A Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  22. 22. Service Interfaces Clients consume service interfaces Loose coupling Systems expose service interfaces Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  23. 23. Service Interfaces Extending… Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  24. 24. SOA Web Architecture Client App 1 System A Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  25. 25. Service Interfaces The Problem: service interface proliferation problem Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  26. 26. Service Interfaces and Standards Clients consume service interfaces …service interfaces conforming to standards Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  27. 27. Service Standards data: OGC WMS, WFS, WPS, … OPeNDAP REST publishing: ATOM discovery: ESIP OpenSearch metadata: OAI-PMH Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  28. 28. Service Interfaces Reusing… Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  29. 29. SOA Web Architecture Client App 1 Client App 2 Client App 3 System A System BMany clients… Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  30. 30. SOA Web Architecture Client App 1 System A System BMany service providers… Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  31. 31. Implementing Services Adopt > Extend > Roll your own Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  32. 32. Service Standards REST is aN Architectural style! Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  33. 33. Services: Roll Your Own Desirable properties include: Discoverability Comprehensibility Universality Extensibility Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  34. 34. Services, RESTfully Discoverability: hypermedia constraint, published media types Comprehensibility: familiar URIs; media types Universality: HTTP transport; XML or JSON payloads Extensibility: XML, e.g. ATOM Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  35. 35. Implementing Services Adopt > Extend > Roll your own RESTful services Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  36. 36. SOA @ NSIDC Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  37. 37. NSIDC’s Service Oriented ArchitectureWeb Apps ACADIS Arctic IceBridge Portal Data Explorer WMS, ESIP ESIP ESIP WFS OpenSearch OpenSearch OpenSearch Libre Searchlight Aggregator Services jOAI GI-Cat OAI-PMHServices ESIP Searchlight Collection Core DIF DIF Cast XML XML MapServer Libre DataCaster get_metadata GeoTIFF GeoTIFFData GeoTIFF map data map data Metadata DB map data Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  38. 38. NSIDC’s Service Oriented ArchitectureWeb Apps ACADIS Arctic IceBridge Portal Data Explorer WMS, ESIP ESIP ESIP WFS OpenSearch OpenSearch OpenSearch Libre Searchlight Aggregator Services jOAI GI-Cat OAI-PMHServices ESIP Searchlight Collection Core DIF DIF Cast XML XML MapServer Libre DataCaster get_metadata GeoTIFF GeoTIFFData GeoTIFF map data map data Metadata DB map data Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  39. 39. Operation IceBridge Portal Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  40. 40. Operation IceBridge Portal ESIP WMS OpenSearch WFS NSIDC ESIP MapServer OpenSearch NSIDC Searchlight Libre Aggregator Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  41. 41. ACADIS Arctic Data Explorer Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  42. 42. ACADIS Arctic Data Explorer ESIP OpenSearchACADIS Arctic Data Explorer OAI-PMH OPeNDAP EOL field NSIDC Met.no catalog metadata metadata ACADIS (NCAR) catalog catalog Gateway (NCAR) Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  43. 43. +/-/Δ: OBSERVATIONS Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  44. 44. Disadvantages Complexity Compromise Development time Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  45. 45. Advantages Reuse (and reusability) Off-The-Shelf Software Development time Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  46. 46. Challenges Documentation Adoption Continuity Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  47. 47. THE WEB OF SERVICES Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  48. 48. The Web of Services Clients consume service interfaces Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  49. 49. The Web of Services Web clients… Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  50. 50. The Web of Services Web browsers have security restrictions… (“same origin policy”) Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  51. 51. The Web of Services My web client may not consume your service interface Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  52. 52. A MODEST PROPOSAL Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  53. 53. Goal Increase the pool of potential users (web applications) of our data Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  54. 54. HTML5 Standard: CORS CORS: Cross Origin Resource Sharing http://www.w3.org/TR/cors/ http://enable-cors.org/ Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  55. 55. Proposal Write service-enabled clients Build standards-based services Enable CORS Share and reuse data and services Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  56. 56. Poster Joe Oldenburg: “Cool Apps” IN43B-1517 Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture
  57. 57. Questions Write service-enabled clients Build standards-based services Enable CORS Share and reuse data and services me: ian.truslove@nsidc.org @iantruslove this presentation: http://goo.gl/xkxgd Cool Apps: Building Cryospheric Data Applications With Standards-Based Service Oriented Architecture

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