NDIIPP Preservation Network: Progress, Problems, and Promise

1
NDIIPP Preservation Network Progress, Problems,
and Promise

• Jim Tuttle, Geospatial Data Librarian

2
NC Geospatial Data Archiving Project

• Partnership between NCSU Libraries and NC Center
  for Geographic Information Analysis
• State and local geospatial content in North
  Carolina
• Tied to NC OneMap initiative, which provides
  seamless access to data, metadata, and
  inventories
• Engage existing state/federal geospatial data
  infrastructures in preservation

3
Geospatial data types Vector data
Time series Parcel Boundary Changes 2001-2004
North Raleigh, NC
4
Geospatial data types Aerial imagery
5
Geospatial data types Aerial imagery
6
Geospatial data types Aerial imagery
85 NC counties with orthophotos 1-5 flights per
county 30-200 gb per flight
7
Todays geospatial data as tomorrows cultural
heritage
Future uses of data are difficult to anticipate
(as with Sanborn Maps).
8
Geospatial Data Risks

• Producer focus on current data
• Future support of data formats in question
• Shift to web services- and API-based
• access
• Inadequate or nonexistent metadata
• Increasing use of spatial databases for data
  management

9
Different Ways to Approach Preservation

• Technical solutions How do we archive acquired
  content over the long term?
• Cultural/Organizational solutions How do we make
  the data more preservableand more prone to be
  archivedfrom point of production?

10
Technical Approach Progress

• Ingest workflow
• Receiving data as is variety of distribution
  methods
• Migration of some at-risk formats
• Metadata remediation, standardization, and
  synchronization
• Mechanism for distilling complex objects into
  repository ingest items
• Repository
• Using DSpace for demonstration purposes
• In development use METS record as dormant item
  brain within the repository

11
Organizational Approaches Progress

• Engaging spatial data infrastructure
• Feedback to metadata outreach program
• Feedback on adherence to content standards
• Involvement of state and local advisory bodies in
  project
• Viral approach to promoting digital preservation
• Engaging industry
• Working with software vendors (e.g, ESRI)
• Engaging standards community (Open Geospatial
  Consortium)

12
Changing Thinking

• Web 2.0, web mashups, and AJAX technologies
  create new opportunities (and challenges)
• Looking at static, pre-cut image tiles from
  geospatial web services as a preservation target
• Contact fatigue among local agenciesneed to
  work with state agencies on coordinated flow of
  data
• Participating in a collaborative multi-agency
  effort to routinize content exchange

13
Learning from the NDIIPP Network

• Maturing thinking about metadata transformations
  (inspiration from the UIUC/OCLC hub and spoke
  model)
• Leveraging outside expertise in preservation
  metadata (interactions with Stanford NDIIPP
  project)
• Discussions about mutual use of tools in ingest
  workflow (JHOVE, ClamAV, noid, MD5, etc.)
• NDIIPP network creates opportunities for
  interactions that might not otherwise happen
• Jim Tuttle, NCSU Libraries
• jim_tuttle_at_ncsu.edu