7. Error Messages and Think Aloud

Question 1

Colours in messages to users

Answer 1

They are often used to signal severity. Example: Red for errors

Question 2

Text of messages

Answer 2

Should be informing, constructive and polite

Question 3

What is the goal of warning texts?

Answer 3

To warn the user about something that is not possible to undo

Question 4

The think aloud method

Answer 4

1. One on one sessions 2. Tasks that users solve 3. Ask the user to think aloud while solving the task 4. Observing how easy it is for users to solve the tasks 5. Interview before and after the task solving (Similar to prototype testing but more formal)

Question 5

Pilot testing

Answer 5

You need one participant to go through all the process. The goal is to try out all the material, practice the process and to check the system

Question 6

What is a questionnaire?

Answer 6

A tool for conducting a survey. A questionnaire has the goal to gather data on particular knowledge. They can be both on paper and web. They can access many people but sometimes the response rate is not that good (30% is quite good)

Question 7

SUS

Answer 7

System usability scale

Question 8

What is a usability problem?

Answer 8

A problem in the functionality, look or structure of the user interface, that makes a completed system harder and more time consuming for the users of the system and impacts the user

Question 9

Severity of usability problem

Answer 9

Minor problems - impacts the user not much
Rather serious - has some impact on users
Very serious problem - the user can’t continue