Usability testing is a questionnaire pre-testing method in which interest is increasing along with the increase in surveys using computers. The purpose of this study is to introduce usability testing techniques and procedures to provide practical assistance to researchers who need to plan and perform usability testing.
Section 1 described the concept and the introduction background of usability testing, and Section 2 described the purpose and testing criteria of usability testing. Section 3 introduced techniques mainly used in usability testing, and Section 4 introduced the actual procedure for performing usability testing step by step. Through this study, it is expected that more researchers will be able to apply usability testing as a questionnaire pre-testing method.

Key words: Questionnaire testing method, usability testing