Usability testing: introduction

• What is usability testing?

• Why is usability testing useful?

• Who is testing? who are the subjects?

• What is tested?

• When is usability testing performed?

• How is usability testing performed?

• How much effort (and money) should one put into usability tests?

• What can be the consequences of usability tests?

• What can be the side effects of usability tests?