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?