de Haan, G., Choenni, S., & Mulder, I. Opening up Closed Systems. Presented at CHI Nederland conference ‘Change!’, 11 June 2009

1. Opening up Closed Systems
with Sensible Data
Geert de Haan, Sunil Choenni, Ingrid Mulder
Communication, Media and Information Technology (CMI)
Rotterdam University (HRO)
G.de.Haan@hro.nl

2. Content
 User Centered Design
 Human Centered ICT
 Data in Sensitive Environments
 Structured and unstructured data
 Museum e-Guide example
 Conclosure
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3. User Centered Design - UCD
 design aimed at a user group
 usability design principles (ISO)
 focus on interface usage as a tool
 tool perpective
 usage as development proces
 status and image
 social interaction
G. de Haan et al. - Opening up Closed Systems 3/12

4. Human Centered Design
 changing field of application 'market'
 consumer, peers
 away from business procedures
 at home and everywhere (mobile, ambient, ... )
 different perspectives
 social interaction
 ict as a mere technique
 user experience design
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5. Human Centered ICT
 ICT to facilitate social interaction
 emergent technologies
 sensitive environments
 intelligent infrastructures
 LivingLab
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6. Sensitive Environments
 RFID
 Bluetooth
 ZigBee
 WiFi
 Infra-red
 environment sensors - eg movement
 biosensors - eg heart rate
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7. Data in Sensitive Environments
 Structured data (DBMS)
makes sense within the Closed World
 Semi-structured data (XML)
 Unstructured data (Text)
makes sense but uncertain, unreliable
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8. How to create surplus information
 use closed-world data to make
real-world data reliable
 use real-world data to make
closed-world data interesting
 use multiple sources to improve
usefulness
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9. Museum e-guide example - UCD
 How to provide guidance information about
a work of art at the right level of expertise.
UCD / tool perspective:
 ask users to specify
the art-work and the
expertise
 a more button
 an interest profile card
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10. Museum e-guide example - HCIct
HCIct / sensing perspective:
 get art-work from a beacon
 get expertise from time at a beacon
 get interest profile from time at sets
of beacons
Multiple source perspective
 add expertise from movement
patterns at various beacons
 add interest profile from
sources on the internet
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11. How to get semi/unstructured data
 keyword matching
 user profiles
 web-crawlers
 metadata
 semantic analysis
 relations may not be strong but there are many
 may not be very reliable but they are free
 the more sources the more useful the information
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12. Conclosure
 Human Centered ICT
 sensitive environments
 intelligent infrastructure
 real-world makes closed-world data interesting
 closed-world makes real-world data reliable
 multiples sources make data useful
 Thank you! / Questions?
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