Usability testing comes as a necessity if you want to deliver a user friendly mobile application.
Although, there are many challenges in doing it in a proper manner & have been conducted in a faulty way very often.
Lack of Proper Planning - The most important part of usability testing is planning the entire testing phase. Testers often underestimate the importance of user experience testing and either they don’t plan it properly or keep very little time for it.
Misconception about the Goal - Being design-specific, testers fail to realize that usability testing is about how the user feels while using the application, a combination of user experience along with how the application works. The aim of usability testing is to figure out the part of the application where the user gets frustrated, either with design or with functionality.
Testing with Incorrect Audience & usually at 11th hour.
One Way Testing - In many usability testing labs, participants work along with the observers to test the application. These often leads to unnatural behaviour, resulting in a negative impact in the testing phase. A better option is to go for a one-way-mirror procedure, where participants are unaware that someone is observing them while they are testing the application.
Participants should not be interrupted & Pilot test should not be missed.
Conducting only one usability testing phase.
Proper behaviour with the Facilitator as well as Participants - Don’t overload your facilitator, understand how much they have on their plates. Don’t run into arguments with the participants. If they are explaining a flaw, then accept it rather than explaining a work around.