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NDIIPP Partners Meeting

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NDIIPP Partners Meeting

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  1. Collecting Digital Content Going Forward: Lessons Learned and New InitiativesNC Geospatial Data Archiving Project (NCGDAP)North Carolina State University LibrariesNorth Carolina Center for Geographic Information & AnalysisPresented by: Steve MorrisHead of Digital Library Initiatives NCSU Libraries NDIIPP Partners Meeting July 10, 2008

  2. NC Geospatial Data Archiving Project • Partnership between university library (NCSU) and state agency (NCCGIA), started Oct. 2004 • Focus on state and local geospatial content in North Carolina (statedemonstration) • Tied to NC OneMap initiative, which provides for seamless access to data, metadata, and inventories • Goal: Engage spatial data infrastructure (SDI) in data preservation and archiving Demonstration repository as catalyst for an industry conversation

  3. Who?

  4. Who? • NCSU Libraries • Capture at-risk data, demonstration repository • Explore technical and organizational challenges • Catalyze discussion, generate learning experience • State/Local agencies, State Archives • Data Producers: Improved temporal data management practices • Archives: More efficient means of acquiring and preserving data; progress towards best practices

  5. Who: Commercial Data Producers and Vendors Project Status Cultivating a commercial market for older data. Part of “permanent access” is marketing, advertising, and putting older data into the path of the user

  6. What?

  7. 2.) Feature Extraction 1.) GIS-ready Image Data 3.) GIS Layers Semi-automated Feature Extraction: Uses Spatial Context, Image Texture, Multiple layers of data, Existing GIS layers CountyOrthorectified Aerial Photography Impervious Surfaces, Landcover Tree Type, Urban Green Space, etc What: Traditional Geospatial Data Types Raster/Image Data Vector Data Focus on “Framework” Data Layers

  8. What: Cartographic Products and Other Outputs • GIS Software • Software project file (.mxd, .apr, …) • Data layer file (.avl, .lyr, …) • PDF, GeoPDF map exports • Web Services-based representations

  9. What: Place-based Data Street Views Oblique Imagery 3D Images Tax Dept. Photos • Present-day value in location-based services and mobile applications • Future value for cultural heritage, descriptions of places

  10. Why?

  11. Why: Solving Business Problems Land use change analysis Site location analysis Real estate trends analysis Disaster response Resolution of legal challenges Impervious surface maps Suburban Development 1993/2002 Near Mecklenburg-Cabarrus County border

  12. Why: Cultural Heritage and Emotional Connection Pronounced local agency interest in archiving, digitizing, and geo-referencing older analog products

  13. When? (and How Often?)

  14. When: Frequency of Capture Surveys • How often should continually changing vector datasets be captured? • Tap into data custodian understanding of production patterns and uses • Tap into local innovation • Learn about local business drivers for data archiving • Survey subjects: • 2006 and 2008 surveys of NC cities and counties • 2008 survey of archival practice in state agencies in NC • Planned survey of data users in NC

  15. When: Frequency of Capture Surveys • 2006 survey did more to socialize the problem of digital preservation within the data custodian community than any other project effort. • Four points of engagement in survey process: • Survey formulation in consultation with advisory bodies • Announcement of survey • Survey completion by data custodians/producers • Survey reports

  16. Where?

  17. Where: Data Archive Locations • In State • Data producers: Better temporal data management • State Archives: Selected authoritative records • Libraries: Derivatives and variants? • Out of State • GeoMAPP Project – Multi-state exchange • Participation in NDIIPP content exchanges • Role for federal government? National Map?

  18. How?

  19. How: Leveraging Spatial Data Infrastructure • Data inventories support content identification • Metadata standards support discoverability and use • Content standards support data interoperability over time and help eliminate semantic confusion • Data exchange networks: • Minimize need to make contact • Add technical, administrative, descriptive metadata • Establish rights and provenance

  20. How: Archiving as Part of Data Community Discussion • Recommendation: • “Establish archive and long term data access strategies” • Suggested best practices include: • “Establish a policy and procedure for the provision of access to historic data, especially for framework data layers.” Nov. 2007 NC Geographic Information Coordinating Council (GICC) released: Ten Recommendations in Support of Geospatial Data Sharing

  21. How: GICC Archival and Long Term Access Committee • Initiated in response to agency requests for guidance on temporal data management • County, municipal, state, federal, and regional representation • Key focus: Best practices for data snapshots and retention

  22. Moving Forward • GICC Archival and Long-Term Access Committee • GeoMAPP – NDIIPP Multi-state geospatial project (NC, KY, UT) • Open Geospatial Consortium (OGC) Data Preservation Working Group • Vendor engagement

  23. Thanks! Steve Morris Head, Digital Library Initiatives NCSU Libraries Steven_Morris@ncsu.edu NCGDAP: http://www.lib.ncsu.edu/ncgdap/

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