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Revision as of 14:02, 12 December 2012 by Krebbix (Talk | contribs)

Series 40 UI design usability testing webinar - companion article

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This article is companion for the Debug your design for Series 40 Full Touch webinars held in December 2012. It covers both sessions: 11th and 12th December 2012.

Article Metadata
Created: Krebbix (10 Dec 2012)
Last edited: Krebbix (12 Dec 2012)



You know it's important to test your app before you publish it, but if you’re testing only your code, you’re testing only part of your app. It’s important to find bugs in your design as well. Otherwise, the app may behave exactly the way your code intends, but users may still find it frustrating and give it low ratings in Nokia Store. Join UX expert Jan Krebber of Digia as he presents simple methods to find UX bugs and shows you how to correct them. These techniques can help you increase your app quality whether you work with a large organization or completely on your own. As usual for Nokia Developer UX webinars, the presentation will feature exercises that will receive follow-up treatment in this Nokia Developer Wiki article.

The webinar and the wiki article are a great starting point if you’re not a UI design expert. Check out Series 40 UI design library for more advanced information and resources.

This wiki page is the "companion" to the webinar. It includes:

  • Webinar exercises and proposals for how to solve them (will be added after the second webinar session).
  • Checklist example from the webinar
  • Time plan example from the webinar
  • Open issues from Q/A
  • Further links and references
  • Slide deck link
  • Recording link (will be added )
  • Webinar announcement

Webinar problems

This section contains problems raised in the webinar exercises.

  1. Watch the videos below.
    • What went wrong?
    • How do you fix it?
  2. When are 2-3 participants sufficient for usability testing? Why?
  3. You are not sure what a participant is thinking. What do you say?
  4. A participant mentions that she is not giving you what you expect from her. What do you say?
  5. A participant thinks she is doing everything wrong. What do you say to her?
  6. Why not give the participant all the tasks on paper?
  7. How would you classify the errors you find. Which errors do you fix first?


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Checklist example

  • Get participants (for 28.11.)
  • Make schedule
  • Get helper to bring the next participant
  • Task list & scenarios on paper
  • Prototype for all test cases
  • Pencil, eraser, paper, scissors, post-its
  • Rooms
  • Refreshments
  • Rewards
  • Agreements printed
  • Task list & scenarios on index cards
  • Call participants day before and remind (27.11.)
  • Run pilot

Time plan example

Minutes Tasks
00 Welcome
01 Introduction
  • My name is...
  • The project is about booking tickets from your mobile phone for 1st and second 2nd league soccer events
02 Read and sign the agreement about the test and NDA is necessary
05 Warm-up questions
  • What are you doing for living?
  • What are your hobbies?
  • How old are you?
  • What is your current mobile phone?
  • Which phones did you use before that?
  • Have you ever bought any goods (real hardware) or event tickets from your mobile phone?
10 Tasks
  1. Give story 1 (start).
  2. Book 2 tickets for the game "FC Dudes vs. Dudes United" in March.
  3. Give story 2 (more info).
  4. Find information about the event place.
  5. How do you get there?
  6. Find more about FC Dudes team.
  7. How well performed Dudes United in comparison to FC Dudes this year?
  8. Give story 3 (you go there).
  9. Drive to the event place.
  10. Show the e-tickets at the entrance
  11. Find your location in the stadium
40 Closure
  • Open issues
    • What was unclear to me?
    • Any task which should be done again?
    • Any new task I would like to see performed?
  • Any questions from the participant?
  • I wrap up
    • What went well 1-2-3
    • What needs improvement so that it becomes easier for the participant 1-2-3
  • Give reward
  • Thank you & Good bye
50 Transition
  • Take additional notes
  • Reset prototype
  • Refill coffee
  • Toilet break

Open issues from Q/A


Further links and references

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