The document provides guidelines for usability testing including involving representative users, applying testing early and often, and recording test sessions. It discusses conducting user satisfaction tests to quantify usability with measurable attributes. Guidelines are given for developing user satisfaction tests including limiting attributes, involving users to identify what to measure, and using commercial tools or spreadsheets.

2. Guidelines for developing testing
• Include all of a software components
• Need not be very expensive or elaborate
• All subjects need not involve all subjects
• Design problems can be studied with few
users
• Apply testing early and often

3. Recording the usability test
• Provide comfortable location for participants
• Don’t interrupt participants
• Record the techniques and search patterns
users employ when attempting to work through a
difficulty
• Record the time taken to perform a task, and
problems faced by them
• Record the results using portable tape recorder
or camera
• This is followed by user satisfaction test and
questionair

4. User satisfaction test
• Process of quantifying usability test with
measurable attributes of the test such as
functionality , cost or ease of use
– Ex: 90 5 of the people should know to
withdraw money from ATM without training or
error

5. objectives
• Used as communication vehicle bw
designers, and also bw users and
designers
• To detect and evaluate changes during
the design process
• To provide a periodic indication of
divergence of opinion about current
design

6. Guidelines for developing user
satisfaction test
• Must work with users or clients to find out
what attributes should be included in the
test
• Limit the number of attributes
• some attributes are
– ease of ues
– functionality
– Cost
– reliability

7. Tool for user satisfaction test
• Commercial Off the Shelf (COTS)
• User Satisfaction Test Spreadsheet
(USTS)