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Java Web-Enabled Access to Metadata

Java Web-Enabled Access to Metadata. Team Members: Bill Busby, Lindsey Gray, & David Meffe Project Sponsor: Lockheed Martin Co. Main Points. Problem Statement Requirements and Goals Product/Solution Statement Storage/Retrieval Web-based Display Risks.

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Java Web-Enabled Access to Metadata

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  1. Java Web-Enabled Access to Metadata Team Members: Bill Busby, Lindsey Gray, & David Meffe Project Sponsor: Lockheed Martin Co.

  2. Main Points • Problem Statement • Requirements and Goals • Product/Solution Statement • Storage/Retrieval • Web-based Display • Risks Bill Busby

  3. Problem Statement: Background/History • LMCO premier producer of Intelligence, Surveillance, and Reconnaissance (ISR) systems • Used by U.S. and allies for: • fixed target imaging (FTI) • moving target indications (MTI) • automatic target recognition (ATR) • battle damage assessment (BDA) Lindsey Gray

  4. Problem Statement: Background/History (cont) • Synthetic Aperture Radar (SAR) metadata imagery used in reprocessing and post-processing procedures and analysis • LMCO produces over 75% of world’s SAR systems. Lindsey Gray

  5. Problem Statement:Business Issues • need for web-based access and analysis of SAR metadata • Facilitate information dissemination • need for improved data storage/retrieval • Currently stored as binary flat files • inadequate to support web-based access and analysis • creates platform dependence Lindsey Gray

  6. Problem Statement: Value of a Technology Solution • Web-based access and analysis • more employees have more access to more detailed data • create platform independence • Relational database management system (RDBMS) & structured query language (SQL) will provide faster access and better support. Lindsey Gray

  7. Problem Statement: Competitive Products • No competitive products available commercially • Requires custom solution due to data security issues and desire to use new emerging technologies Lindsey Gray

  8. Problem Statement:Business Environment • Information is crucial to making decisions. • Customers requested web-based access to this information • Metadata derived from SAR images and used in reprocessing and post-processing algorithms. • The security issues regarding access to SAR metadata is the responsibility of Lockheed-Martin Co. and is not within the scope of this project. Lindsey Gray

  9. Requirements Overview • Goals • Design & build an improved storage model • Design & implement a method for web-based access • Requirements • Functionality • Operational environment • Users David Meffe

  10. Goal: Design & Build an Improved Storage Model • Reason • Lockheed-Martin is currently storing synthetic aperture radar (SAR) metadata in flat file format and require a more efficient method of storing data. • Benefits • Platform independent • All data is stored • Locate data faster using queries David Meffe

  11. Goal: Design &Implement a Method for Web-based Access • Reason • Lockheed-Martin wants to access the synthetic aperture radar (SAR) metadata through a web-based environment • Benefits • Multiple user access to data • Common display method for SAR imagery David Meffe

  12. Requirement: Functionality • Provide web-based access to synthetic aperture radar (SAR) metadata • Storage and retrieval of SAR metadata in a database • Query database for SAR metadata • Insert SAR metadata in database using Extensible Markup Language (XML) parser routine David Meffe

  13. Requirement: Operational Environment & Users • Operational environment • Initially Windows NT • Accessible through internet browser • Internet Explorer • Users • Range from beginner to advanced • Online help facility • Intuitive user friendly interface David Meffe

  14. Product/Solution Statement Project can be divided into 2 main areas: • Data storage/retrieval model • Web-based display of data Bill Busby

  15. Storage/Retrieval Model • RDBMS – Oracle8i • Need to limit access • Different views for different user types • Data retrieval via JDBC Bill Busby

  16. Web-based Display • Format Data • 3 documents for using XML • XML • DTD • XSL or CSS • Dynamic generation of content • JSP and/or Servlets Bill Busby

  17. Risks • Learning new emerging and changing technologies • XML • JSP • No actual data, just placeholder tags • Lack of details • User Environment • Data Bill Busby

  18. Conclusion • SAR Metadata • The Opportunity • Improved storage/retrieval model • Web-based access • Tools for the Solution • Oracle8i • XML • We are the ‘JWEAM Team’ Bill Busby

  19. ? ANY QUESTIONS Bill Busby

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