sharads

 Profile Answers by sharads 

• Dec 14th, 2009

 

Usability testing is a black-box testing technique. The aim is to observe people using the product to discover errors and areas of improvement. Usability testing generally involves measuring how well test subjects respond in four areas: efficiency, accuracy, recall, and emotional response. The results of the first test can be treated as a baseline or control measurement; all subsequent tests can then be compared to the baseline to indicate improvement.

* Performance -- How much time, and how many steps, are required for people to complete basic tasks? (For example, find something to buy, create a new account, and order the item.)

* Accuracy -- How many mistakes did people make? (And were they fatal or recoverable with the right information?)

* Recall -- How much does the person remember afterwards or after periods of non-use?

* Emotional response -- How does the person feel about the tasks completed?
Is the person confident, stressed?
Would the user recommend this system to a friend?

kurtz182

 Profile Answers by kurtz182 Questions by kurtz182

• Dec 25th, 2009

 

Usability testing evaluates persons as they use the application under test.   Its purpose is to judge the application in terms of

1) Performance: How much time or how many steps were required to complete tasks?
2) Accuracy:  How many mistakes did people make?
3) Intuitiveness:  How easy was it to learn?
3) Recall:  How easy was it to remember after a period of time?
4) Emotional response: How do people feel about it?