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This lecture gives a summary of data gathering techniques, and discusses its main advantages and drawbacks.
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Leonardo da Vinci Partnerships ProjectGUI USABILITY AND ACCESSIBILITY:
EXCHANGING KNOWLEDGE AND EXPERIENCES
Introduction to User-Centred Analysis (UCA)
Data Gathering TechniquesTechniques
Cristina Cachero
This project has been funded with support from the European Commission under the Lifelong Learning Programme
Leonardo da Vinci Partnerships ProjectGUI USABILITY AND ACCESSIBILITY:
EXCHANGING KNOWLEDGE AND EXPERIENCES
This project has been funded with support from the European Commission under the Lifelong Learning Programme
2
User-Centred Data Gathering TechniquesInterview Focus
GroupObservation
Diaries/Journ
What it is One-to-one discussion
Small group discussion
Watching people work, without interferring
Ask people to record an aspect about whatever you are studying (with or withouth remindings)
Good for Collecting realistic, rich informationExploring an issueFollowing tangents (allows to probe)
Collecting opinionsGetting larger numbers of people involved
Situations where you can’t interrupt (call centers, critical situations)When you want to absorb a lot of ‘real life’
Learning contextSeeing situations you may miss during interview/observation
Tips Conduct in contextAsk ‘show me’Prepare a guide, not rigid questionsAudio-record and transcribe
To get more practical input, ask people to do some preparation and use activities, not just discussionAudio-record and transcribe
Watch, then discussSome situations may not happen during the observation (remember to discuss)
Make it straightforward and low effortProvide clear instructions
Time Can be time.consuming to arrangeInterview time per person
More time-effective than interviews
Similar to interviews: time with participants may be longer
Need time to participants to respond
Leonardo da Vinci Partnerships ProjectGUI USABILITY AND ACCESSIBILITY:
EXCHANGING KNOWLEDGE AND EXPERIENCES
This project has been funded with support from the European Commission under the Lifelong Learning Programme
3
User-Centred Data Gathering TechniquesCard sorting
Survey Web analyt Other people
What it is People group content ideas in ways that make sense for them
Prepared set of questions
Usage information for an existing app
Other people already knows about your users
Good for Learning about groups and terminology
Collecting from a high number of people. Quick response
Identifying popular content, terminology, entry points, usage trends
Getting an initial understanding of users based on internal knowledge
Tips This is a good activity to run with other methods
Ask open questions (rather or in addition to close) in order to get more useful information
Analyse regularlyDo before other user research
Talk to staff from call centers and help desks
Time Needs time for preparation. Can be run online to reduce collection time
Can take a while to prepare the survey. Responses come in quickly (if online)
As needed As needed
Leonardo da Vinci Partnerships ProjectGUI USABILITY AND ACCESSIBILITY:
EXCHANGING KNOWLEDGE AND EXPERIENCES
This project has been funded with support from the European Commission under the Lifelong Learning Programme
4
User-Centred Data Gathering Techniques
DG Technique Advantages DisadvantagesInterviews Users know best tasks they
perform and howUsers may provide innacurate information, or fail to mention important information (desirability bias)
Focus groups High input in short time; group synergy
Lacks behavioural validation; group think effect may inhibit participants
Observations Can watch what users say and do as they go about their tasks in a realistic setting
Observer can disrupt the users in their work environment
Diaries/Journals People record events as they happen
Requires subjects to be systematic when recording the fact under study
Card-sorting Reveals mental models and groups
Depending on the size of the app, can be very cumbersome to apply
Survey Helps collect demographic data May not represent all users
Web Analytics Quick way to detect trends and behavioural patterns
Illustrates what happens, but not why
Other people Can gather data on common problems with existing systems
Sampling of calls/customer messages may not be very systematic.
Leonardo da Vinci Partnerships ProjectGUI USABILITY AND ACCESSIBILITY:
EXCHANGING KNOWLEDGE AND EXPERIENCES
These are not the only possible techniques… Jad sessions Analysis of discussion groups/bulletin boards (web content analysis) User group meetings …
This project has been funded with support from the European Commission under the Lifelong Learning Programme
5
User-Centred Data Gathering Techniques
Leonardo da Vinci Partnerships ProjectGUI USABILITY AND ACCESSIBILITY:
EXCHANGING KNOWLEDGE AND EXPERIENCES
These slides are made available under the license Creative Commons Attribution-NonCommercial-NoDerivs CC BY-NC-ND. More information about license: http://creativecommons.org/licenses/by-nc-nd/3.0/.These slides were created under Leonardo da Vinci Partnerships Project 2012-1-PL1-LEO04-28181 GUI USABILITY AND ACCESSIBILITY: EXCHANGING KNOWLEDGE AND EXPERIENCES (http://usability-accessibility.org/).
This project has been funded with support from the European Commission under the Lifelong Learning Programme
6
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