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Exploring the Design and Use of Messaging and Situated Displays. Keith Cheverst and Dan Fitton Lancaster University. Exploring Messaging to Public/Private Places Rather than people! Issues Patterns of use Interactions that do (or do not) occur Meeting dependability requirements
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Exploring the Design and Use of Messaging and Situated Displays Keith Cheverst and Dan Fitton Lancaster University
Exploring Messaging to Public/Private Places Rather than people! Issues Patterns of use Interactions that do (or do not) occur Meeting dependability requirements 2 Case studies HERMES Computing Department of Lancaster University SPAM Support for Care staff in distributed offices Talk Overview…
Case Study 1 HERMES: Exploring messaging with situated displays in Lancaster’s Computing Department
HERMES… • Motivation… • Paranoia about missing that appointment and not being able to let anybody know in time!! • “Sorry running 40 minutes late today”
Contrasting with Post-it Notes… • Control of various dimensions • Visibility/Privacy… • Who can leave public messages • Who can remove messages • Security • Remote Interaction… • Leaving & Reading, Owner & Other • SMS (MMS…), Web portals… • Appropriation…
Initial Design Constraints… • Had to Utilise LV • Disabilities legislation • Easy to deploy • Self contained • Doesn’t require running PC • Wireless Communications • Information Appliance • Case Design… • Dependability • We hate iButtons !
Development and Patterns of use… • Phased development.. • Participatory Design… • Initially only access through the web portal… • Required users to authenticate • Too heavy weight… • Difficult to remember URL • Introduced e-mail for receiving messages, • Will be introducing instant messaging support, e.g. msn messenger.
Patterns of use… • Initially only a single ‘public’ message… • Users found cost of changing too high • Consequently messages were being left on display… • Introduced Temporary & Default messages • Will be enabling users to clear temporary message on device itself and to select messages. • “I usually remember to stick up a post-it note only after locking the door behind me”
Current Plans… • Use of Context • Back in ten minutes, countdown, etc. • Using time etc. to determine most likely temp message • Explore how users trade-off security & ease-of-use • Need more convenient authentication… • Return to exploring use of private messages. • Explore further remote interaction dimension • Enabling others to view displayed messages remotely, e.g. via the doorplate owner’s home page… • Possible Additional Coordination Role…, is Alan in today? • Increase user’s likelihood of updating their doorplate? • Sharing personal context… • Enabling others to leave messages remotely, after authentication?.
Case Study 2: Situated displays to support staff across geographically remote offices …
Requirements Capture… Remote Staff and Residents Phone Phone E-mail Phone One/two members of Staff in Office at Location B One member of Staff in Office at Location A
Workshop – (Dec, 2001) • Discussed problems, • e.g. demand for phone • Demonstrated HERMES… • Staff felt that similar messaging system would be useful • Reduce burden on phone • Provide lightweight asynchronous communication channel
The SPAM Solution… Low noise, Compact, No space invaders! Extensive testing…
The SPAM solution… Remote Staff and Residents Phone Phone SMS SMS E-mail Phone SPAM One/two members of Staff in Office at Location B One member of Staff in Office at Location A
User Reaction… • Initial comments • We're delighted with it .. we've all started to use it very quickly .. and we're using it a lot • ..I think people at first thought it was going to be really complicated but it couldn't be easier .. .. we find it extraordinarily useful..
Broad Categories of use… • Use as Confirmation • Has Fax, email got through? • Has x left yet? • General coordination between sites… • e.g. Ordering food! • Use to signify delays/need for help, • Related to phone use, usually requests for phone to become free. • "please ring car wont start so cannot take ph and sm to cc barbara". • Coordination with mobile users • e.g. "Pizza & and chips are ready come on in :-)" • Remote requests • e.g. request to test the fire alarm • Some jokes and general chit-chat etc. • Developing Language and Use
Concluding Remarks… • Messaging to places rather than people • Novel interaction paradigm ? • cf work by McCarthy: Outcast etc. • …certainly little work looking at use of this class of system over constant and long periods of use • Such periods of use are required before users are likely to develop new usages… • Initially messaging solutions need to fit in with existing patterns of use