WolfWalk: A Mobile Digital Collections Project at NCSU Libraries
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Transcript of WolfWalk: A Mobile Digital Collections Project at NCSU Libraries
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WolfWalk:A Mobile Digital Collections Projectat NCSU Libraries
Markus Wust and Brian DietzASERL IT/Digital Initiatives Interest Group
WebinarNCSU Libraries
August 11, 2010
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Outline
• Background• Demo• Implementation Challenges• Technology• Alternative Approaches• Final Thoughts
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Background
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MobiLIB
• Launched in early 2007• Pre-iPhone• Few similar services• Designed for devices with
basic web capabilities
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Apple iPhone (2007)
Source: Flickr user shapeshift
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Next Generation Devices
New Features• (Assisted) GPS• 3G/Wi-Fi Internet Access• Touch screen interface• Camera• Compass• Accelerometer
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NCSU Libraries Mobile
• Launched 2009• Built on MIT Mobile
Web framework• Collaboration with
campus IT• Part of library mobile
initiative• m.lib.ncsu.edu
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Question:
• How can we use the unique affordances of mobile devices to provide innovative services and access models to library resources that we cannot implement otherwise?
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Our answer:
Location-aware Digital Collections
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How we used to access our special collections
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Todd Kosmerick and Adam Berenbak, NCSU Libraries
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Access to Physical Materials
• Requires on-site presence• Request materials in advance (24-48 hours)
• Optimized for• Intensive research• Analysis of original
• Affords an intimacy with the object
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How we access (some of) those collections now
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Markus Wust, NCSU Libraries
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Access to Digital Materials
• Access materials from anywhere
• Curator determines what you see• Exhibit approach to digital collection building
• At a remove from the original
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How we might experience our collections…
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Jason Casden, NCSU Libraries
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Location-aware Mobile
• Optimized for on-site use
• Curator determines what you see
• Affords• In-situ learning• Returns the intimacy to the experience
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The WolfWalk Project
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The WolfWalk Project
• A historical guide to the NC State campus
• Small, curated subset of University Archives Photo Collection
• Location-aware• Two versions• Mobile web site (March 2010)• iPhone app (July 2010)
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About the Collection
• 90 campus sites• 600 images sourced
from existing digital image collections
• Newly authored site descriptions
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WolfWalk Demo
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WolfWalk Mobile Web
http://m.lib.ncsu.edu/wolfwalk
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Web App
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Web App
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Web App
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Web App
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Web App
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Web App
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Web App
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Project Team
• Tito Sierra, Digital Library Initiatives• Jason Casden, Digital Library Initiatives• Markus Wust, Digital Scholarship and Publishing Center• Brian Dietz, Special Collections Research Center• Todd Kosmerick, Special Collections Research Center• Steven Morris, Digital Library Initiatives• Joseph Ryan, Digital Library Initiatives
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Implementation Challenges
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Metadata Issues
Is metadata created for one form of access adequate or appropriate for
others?
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What is this image of?
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This guy
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This guy
…and these guys.
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Digital Collections (Of)
Title: President D. H. Hill and staff, North Carolina College of Agriculture and Mechanic Arts.
Subjects: College presidents; Hill, D. H. (Daniel Harvey), 1859-1924; North Carolina State University; People; Teachers
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But what is this image about?
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D. H. Hill Library
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D. H. Hill Library
…and who cares about these guys?
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WolfWalk (About)
Title: D.H. Hill (with pocket watch) and NC State staff
Site: DH Hill Library
Description: After the first library, located in Brooks Hall, became too small, a new D.H. Hill Library was built in 1953. It was expanded in 1954 and towers were added in 1972 (Bookstack North) and 1990 (Bookstack South). Its namesake, D.H. Hill, was appointed professor of English and bookkeeping in 1889 and became one of the university's first five faculty members. He selected most of the library's books and served as the university's vice president from 1905 to 1908 and president from 1908 to 1916.
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Digital Collections (Of)
Title: President D. H. Hill and staff, North Carolina College of Agriculture and Mechanic Arts.
Subjects: College presidents; Hill, D. H. (Daniel Harvey), 1859-1924; North Carolina State University; People; Teachers
Site: [D. H. Hill Library (Raleigh, N.C.)]
Description: [D. H. Hill Library is named for Daniel Harvey Hill (1859-1924), an English professor at North Carolina State University and one of the college’s first five faculty members. He was president of the University from 1908-1916. The Library was built in four stages, the east wing first in 1953, the Erdahl-Cloyd Student Union or west wing second in 1954, the old book stack tower third in 1971, and the new book stack tower fourth in 1990. In 2007, a major renovation of the east wing of the library was completed. D. H. Hill Library is the main library of the NCSU Libraries system, which is composed of five library facilities.]
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Image Processing
• Existing image files (TIFFs and JPEGs)• No image server• Manually created derivatives• Show view images• Featured images for site descriptions• Thumbnails for site list
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Geo Metadata Issues
How do you geotag very large digital collections in a scalable way?
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Geo Metadata Issues
How do you geotag very large digital collections in a scalable way?
How does geotagging fit into existing digitization workflows, if at all?
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Geo Metadata Issues
Do you geotag individual objects, such as photographs, or groups of objects representing the same geographic
place?
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Practical Considerations
Location-aware mobile interfaces assume some level of data connectivity, which
may vary in quality from one geographic location to the next.
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Technology
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Initial Question
• Should content (images, text) be bundled with application or downloaded on demand?
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Answer
Download Data On Demand• Smaller download for app• No need to go through Apple’s review
process if content is updated or revised• Reuse same data
Downsides:• Users can incur data charges• Requires data connection
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Web Service
• MySQL + PHP• Returns XHTML document• Site index• Site details
• “Near Me”:• Web: SQL → Server• App: Objective C → Device
• Images stored in filesystem
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Geodata (most sites)
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Geodata (some sites)
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Architecture Overview
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WolfWalk Web
• MIT Mobile Web framework• PHP• Javascript• Google Maps v3• WURFL (device detection)
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WolfWalk App
• Objective C• Cocoa Touch Framework• Map Kit Framework (Apple, Google)
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Web or App?
Web
• Pros• Existing staff expertise• More devices• Integration into other
services• Fewer legal hurdles
• Cons• Performance limitations
(e.g., map zooming)• Testing on many devices• Users seem to expect apps
App
• Pro• Performance & UI• Promotion through popular
outlet (App Store)
• Cons• Learning curve• Restricted to one device
platform• Must pass Apple’s review
process• Requires developer license
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What We Are Playing With…
Source: Wikimedia
• Solr data service• Faceting (decade,
building type, …)• Image browsing• Suggestions?
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Alternative Approaches
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Alternative Approaches
• You don’t have to build your own WolfWalk
• Growing number of existing location-aware frameworks
• Some are close to providing the necessary functionality
• Others are already there
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Gowalla Trips
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Gowalla Trips
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Gowalla Trips
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Gowalla Trips
- Cannot upload images yet (only images taken with your phone’s camera)
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LookBackMaps
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LookBackMaps
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LookBackMaps
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LookBackMaps
[Blend historic photograph and image taken with iPhone camera]
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LookBackMaps
- No grouping of images by collections or sources
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Layar
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Layar
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Layar
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Layar
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Layar
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Layar
- Apps for iPhone and Android devices- Requires separate data service
- BYODS (Build Your Own Data Service)
or- Use third-party service providers
- We used Hoppala (http://www.hoppala.eu)- Currently in beta and limited to 100 items- Currently free
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Layar / Hoppala
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Final Thoughts
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The only constant is change, continuing change, inevitable change, that is the dominant factor in mobile development today.
Isaac Asimov (sort of…)
All life is an experiment. The more experiments you make the better.
Ralph Waldo Emerson
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• Be flexible; the mobile environment changes quickly
• Be willing to experiment• Make sure you have a good mobile use
case• Think about how you can adapt
emerging technologies to anticipate future user needs and expectations
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Thank You!
Markus Wust
Digital Collections and Preservation Librarian
Brian Dietz
Digital Program Librarian for Special Collections
WolfWalk
Web: http://m.lib.ncsu.edu/wolfwalk
iPhone App: search for “WolfWalk” in App Store
More Information: http://www.lib.ncsu.edu/dli/projects/wolfwalk/