Exact Difference between GUI Testing and Usability Testing

GUI Testing	Usability testing
1. In GUI Testing tester tests the application front end design to see whether its meets the client requirements or not.	1. In Usability Testing tester tests that whether the application is user friendly or not by checking how easily user can access the application.
2. In GUI Testing we check whether the design and layout of application as per the standards and client requirements or not.	2. In Usability Testing we check whether the design and layout of application is easy to use or not means it is user friendly or not.
3. GUI Testing is more concerned with look and feel of the application means how people react and feel after look in to the application so its testing is done accordingly that.	3. Usability Testing is more concerned with easiness and user friendliness of the application means how people react after using the application means application is easy to use or not so it’s testing is done accordingly that.
4. In GUI Testing tester tests the appearance of the software.	4. In Usability Testing tester tests the easiness to use the software.
5. GUI Testing is done to ensure it meets the design specifications like links, colors, fonts, font sizes, fields etc are displayed as specified in SRS or as specified in client requirements.	5. Usability Testing is done to ensure that the GUI is well designed and easy to use like links and buttons are easily clickable and leaving any of the mandatory field blank gives the proper message that please enter the xyz in mandatory field.
6. GUI Testing is done by keeping in mind the look and feel of application means how application looks.	6. Usability Testing is done by keeping the end user in mind.
7. It stands for Graphical User Interface. It is nothing its only confirm the design specifications with the application.	7. It is done to ensure that the GUI is well designed and easy to use.
8. It is done on different platforms to verify the Look and Feel Testing. (Look and Feel of the application).	8. It is done to verify how much the application is user friendly to an end user.
9. In GUI Testing, tester test whether the front end design of the system is meeting with project standards or not.	9. In Usability Testing, tester tests whether the control flow of the system is convenient for end user or not.
10. In this testing we just test the appearance of the application.	10. In this testing we test the interaction of functionality with the user is effective or not.
11. Example: Example includes colors, fonts, font sizes, buttons, links, icons, placement of data labels and fields etc. are displayed as specified or not.	11. Example: Example includes firstly displayed all mandatory fields, cursor positioning for enter the data into the right field, tab button should work easily etc.
12. In GUI Testing we only focus on the interface of the application.	12. Quality of product is depending on Usability Testing.
13. In this testing we test only the front end of the application.	13. In this Testing we test the overall working of application according to a non-technical user’s point of view.