This presentation is part of research : USABILITY EVALUATION FOR E-GOVERNMENT SERVICES ; you can send me if you are interested on noraalriyes@yahoo.com

1. Usability
evaluation for
e-government
services
NORA ALRIYES

2. Outline:
 Background
 Usability
 E-government usability
Usability problems
 Usability Methods
 Heuristic evaluation
 Usability Testing
 Conclusion and future work

3. Usability
 The extent to which a product can be used by specified
users to achieve specified goals with effectiveness,
efficiency and satisfaction in a specified context of use.

4. E-government usability
 since 1990s with U.S government
 Usability.gov (the official U.S. Government website
managed by the U.S. Department of Health and Human
Services).

5. Usability problems
 Usability problem is:
any aspect of the user interface which might create difficulties to the user with
respect to an important usability indicator (such as: ease to understanding, ease
of learning, ease of use, and subjective user satisfaction).
Examples:
Window stop the user from complete next phase critical problem
Bad navigation and poor feedback are minor problems
Screen layout and lack of colors can be cosmetic problems.

6. Usability Methods
Cognitive walkthrough
1 2

7. Heuristic evaluation
 What ?
 When?
 How?
 Who?
 Advantage & disadvantages?
Review or “ inspection ” of a product by usability experts
Usability Methods

8. Heuristic evaluation example

9. Usability Testing
 What ?
 When?
 How?
 Who?
 Advantage & disadvantages?
Usability Methods
Formative testing , summative testing
Lab Testing , Field Testing , Remote testing
The activity that focuses on observing users working with a product,
performing tasks that are real and meaningful to them

10. Usability Testing Teqniques:
 post-test questioners
• SUS (System Usability Scale questioners)
• CSUQ (Computer Scale Usability Questioners)
 Think-aloud strategy
• encourage the participant to share his or her thoughts
with you while working with the product.
Usability Methods

11. post-test questioners
Source: from ACM website http://oldwww.acm.org/perlman/question.cgi?form=CSUQ

12. Conclusion and future work
 Use the two ways and get the advantages of both ways .
 Heuristic evaluation
 Usability Testing
 Using post-test questioners
 Recheck the work

13. Questions ?
Usability evaluation for e-government services