# Presentation: 390322

## Collecting Digital Content Going Forward: Lessons Learned and New InitiativesNC Geospatial Data Archiving Project (NCGDAP)North Carolina State University LibrariesNorth Carolina Center for Geographic Information & AnalysisPresented by:	Steve Morris		Head of Digital Library Initiatives		NCSU Libraries

***NDIIPP Partners Meeting***

***July  10, 2008***

## 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 (*state* *demonstration*)
- 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*

## Who?

## 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

## 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

***Who: Commercial Data Producers and Vendors***

## What?

## What:  Traditional Geospatial Data Types

- Raster/Image Data

- Vector Data

*Focus on “Framework” Data Layers*

## What:  Cartographic Products and Other Outputs

***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

## What:  Place-based Data

***What:  Place-based Data***

**Street Views**

**Oblique Imagery**

**3D Images**

- _Present-day value_ in location-based services and mobile applications
- _Future value_ for cultural heritage, descriptions of places

**Tax Dept. Photos**

## Why?

## Why:  Solving Business Problems

**Suburban Development 1993/2002**
- Near Mecklenburg-Cabarrus County border

**Land use change analysis**

**Real estate trends analysis**

**Site location analysis**

**Disaster response**

**Resolution of legal challenges**

**Impervious surface maps**

## Why:  Cultural Heritage and Emotional Connection

- Pronounced local agency interest
- in archiving, digitizing, and geo-referencing older analog products

## When? (and How Often?)

## 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

- 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

## 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

## Where?

## 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?

## How?

## How: Leveraging Spatial Data Infrastructure

***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

## 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.”

***How: Archiving as Part of Data Community Discussion***

- Nov. 2007 NC Geographic Information Coordinating Council (GICC) released:
**Ten Recommendations in Support of Geospatial Data Sharing**

- 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.”

## 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

## 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

## Thanks!

***Thanks!***

- Steve Morris
- Head, Digital Library Initiatives
- NCSU Libraries
- Steven_Morris@ncsu.edu

- NCGDAP:  http://www.lib.ncsu.edu/ncgdap/