Usability means how easy a product is to use and learn. If a website or system is difficult to navigate or use, users will find alternative options. Effective usability testing involves observing users complete common tasks without assistance to identify any difficulties, with changes made between iterative tests to improve the user experience.

2. Usability
Usability means the ease of use and learnability of a product.
Usability is important, if a program or information system is difficult to use then
the end user will find an alternative solution.

3. Usability
If a website is difficult to use or navigate then the end user will try a different
website
If a user cannot find a product on an e-commerce website then they may not
make a purchase.

4. User Testing
Step 1: Ask users to carry out common tasks on the website or information
system (e.g. navigate, search, purchase)
Step 2: Observe the users noting how they managed to complete the tasks and
any difficulties they may have experienced (but do not intervene / help).
This should be an iterative process, with changes being made in light of testing
and then further testing taking place.

5. Testing
The purpose of testing a website or information system:
Appropriate for target user
Links and navigation work correctly
All media is correctly displayed and layout is consistent
The user can work out how to complete tasks with minimal or no help
The user experience (UX) is good

6. Testing
The purpose of testing a website or information system:
Appropriate for target user
Links and navigation work correctly
All media is correctly displayed and layout is consistent
The user can work out how to complete tasks with minimal or no help
The user experience (UX) is good