mobile sensors: building a staff-facing tablet application for library assessment
DESCRIPTION
Presented at "NISO Forum: Mobile Technologies in Libraries" in Philadelphia, PA in May 20, 2011.TRANSCRIPT
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Mobile SensorsBuilding a staff-facing tablet application for library
assessment
Jason CasdenNorth Carolina State University LibrariesNISO Forum: Mobile Technologies in LibrariesMay 20, 2011
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Mobilized library services
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Mobilized library services
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Mobilized library services
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Mobilized library services
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Mobilized library services
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Mobilized library services
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Mobile-enabled library services
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Indirect mobile-enabled services
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Problem statement
• Many libraries perform manual counts of people in spaces doing something at some time
• The process involves tedious collection mechanisms, lots of paperwork, and much room for error
• There is no coordinated effort to help departments analyze their data
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Our solution
An open source tablet-based app (well, toolkit) to aid library staff in assessment of how patrons are using library spaces.
In other words…the gathering, storing, exporting, analyzing, and visualizing of data across spaces/activities/time and around events.
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Why do we care?
With data about use/activity patterns in different library spaces we can– Improve staffing models– Make informed purchasing decisions (technology,
furniture)– Arrange space (quiet study, collaborative)– Take an evidence-based approach to planning
future library spaces
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Related work
• James B. Hunt, Jr. Library planning• IMLS Learning Spaces grant
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14Illustration by Joyce Chapman
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Activity tracking
• Are some spaces more conducive to group study or individual study?
• What’s the ratio of usage of laptops versus public computers versus no computers?
• Do changes to space components change the type of usage?
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NIH Library project
Hope, Benjamin, and Bradley Otterson. "Visualize the Activity in the Library with Data." In Annual Meeting of the Medical Library Association. Washington, DC, 2010.
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Staff as sensors
Joyce Chapman: librarian, project team member, slide contributor, wireframer, data analyst, illustrator.
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Data analysis
• Fragmented data• Decentralized data storage • Uncontrolled vocabularies
= High barriers to analysis and data reuse
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Two-part project
1. Address a current need: improve ease of data collection and reporting for our current headcount practices
2. Expand to new areas of interest (activity counts, analysis and visualization, data importing/exporting) and share the tool
Goal: to encourage an evidence-based approach to physical spaces
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Working Title: Suma
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What is the system?
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What is the system?
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What is the system?
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What is the system?
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What is the data?
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How are we starting?
• Headcounts– Focus on improving existing practices
• Client-first development– To make sure it will work– Strict user requirements
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Some requirements
• Very high interface responsiveness• Accommodate uneven network access• Support future expansion to activity counts• Open Source release
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Why web-based?
• Multi-platform support– Rapid expansion of tablet market
• Open source release– Difficulty in deploying native iPad applications• Licenses, ad-hoc deployment pains, etc.
• Encourage community use and contributions• Design doesn’t preclude multiple clients in the
future
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Why not web-based?
• Interface performance/responsiveness is crucial
• Handling uneven Wi-Fi coverage• Data stability
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How to resolve this?
• Browser database• Asynchronous data aggregation• touchstart/touchmove/touchend events
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Browser storage
• SQLite– Web SQL Database– Google Gears
• Indexed Database API (Indexed DB)• HTML5 Storage (localStorage)
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Web SQL
• Possibly soon to be obsolete– http://www.w3.org/TR/webdatabase/– 18 November 2010: “This document was on the W3C
Recommendation track but specification work has stopped. The specification reached an impasse: all interested implementors have used the same SQL backend (Sqlite), but we need multiple independent implementations to proceed along a standardisation path.”
– Gears end of life plans announced 19 February 2010• Why?
– It works now• WebKit support (for now)
– iOS, Android
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persistence.js
var Session = persistence.define('Session', { startTime: "DATE", collectionLength: "INT”
});
var Person = persistence.define('Person', { timestamp: "DATE"
});
Session.hasMany('people', Person, 'session');
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Data synchronization
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Design iterations
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What are we trying to replace?
CC BY-NC-ND 2.0. Dipesh Soneji. http://www.flickr.com/photos/dipeshsoneji/4734289230/
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Future directions
• Open Source release: Late summer 2011• Legacy data• Build analysis dashboard tools• Activity counts– Reference transactions– Subjective/Observational space usage data– Grant assessment
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Project team
• Jason Casden• Joyce Chapman• Rob Rucker• Hill Taylor• Eric McEachern• Rusty Earl
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Thanks!
Jason [email protected]@cazzerson
https://github.com/cazzerson/Sumahttp://www.lib.ncsu.edu/dli/projects/spaceassesstool