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Chi Con Carne Tom De Buyser, Tom Piot, Alex Witteveen
Chi Con Carne
Tom De Buyser, Tom Piot, Alex Witteveen
frietleuven.beWhat?• Find nearby frituren• Get general
information• See if others
(dis)liked it• Give your own
opinion
How?• Website• HTML5 / PHP / Jquery• Real data
frietleuven.be
Dit filmpje staat op de blog
Iterative design
Iteration 1
Iteration 2
Iteration 3
Iteration 4
general usability
general usability
digital conversion
voting and usefulness
free experimentation
tasks + think aloud
tasks + think aloud
tasks + questionnaires
6
4
6
27
Find users
“In the wild”
• Talk to friends and fellow students• Visit frituren and introduce ourself• Social media (facebook, twitter,
youtube)Track what users do• Detailed log of user activity• Google analytics for general overview• Built-in feedback button
Google analytics
Google analytics
Google analytics
0 1 2 3 4
Iteration 1• Facebook/friends
integration• History of
recommendationsIteration 2• Only show friends’
historyIteration 3• Not implemented
Iteration 4• Still not implemented• Unclear button
description
Post-release• 25% uses this feature• No data on
expectations
Conclusion & future work• Desired feature• Test what users
expect of this feature
Iteration 1• Misleading vote-
visualisationIteration 2• Center the
visualisationIteration 3• Undesired look• New solution
Iteration 4• Clear interpretation of
votes
Iteration 1• List only sorted on
distance• No need to sort
manuallyIteration 3• 66% wanted sorting
optionsIteration 4• Implemented
Post-release• Only 3% uses this
feature• All options are used
equally
Conclusion & future work• Test why users (don’t)
use this before improving
Unclear what button does?Simply no need?Too much focus on voting?
Iteration 1 & 2• Map & hours always
visibleIteration 3• If map is large: scroll
issue• If map is short:
visibility issueIteration 4• Row of information
buttons• Added menu & prices
Post-release• 44,5% uses “map”• 44,5% uses “opening
hours”• 41,5% uses “prices”• No data on
expectations Conclusion & future work• Desired features• Test what users expect
of these features
Iteration 1• “Rate” button was
clearIteration 2• Changed to “Beoordeel”
Iteration 3• Changed to “Stem”
(shorter)• 33% expected “Stem”
to give a like immediately Iteration
4• 30% with same issue• Alternatives would be
clear
Post-release• Changed to “geef je
mening”• 14,5% presses the
button
Conclusion & future work• Main feature of the app• Add an incentive to
vote
Iteration 1• Confusion with three
buttonsIteration 2• Immediately cast vote
Iteration 3• Name as a login
substitute• Used icons instead +1
& -1
Post-release• 750 profile visits• 75 votes, 45 unique
users• 5% of votes are
negative
Conclusion & future work• Main feature of the app• Add an incentive to vote• Moderation of spam• Is there need for a
good/bad attitude?
Pakfriet app (mechelen 2012)
Questions?
