Usability Testing of Corn Diseases and Pests Detection on a Mobile Application

Corn has become one of the most prevalent key food production in various countries worldwide due to its high nutritional content. However, corn is prone to diseases or pests which might severely hamper its cultivation. Therefore, Online At Sawah (OAS) is developed in order to do detection of diseases or pests suffered by the corn based on the symptoms given by the users using decision tree method. In accordance with the detected diseases or pests acquired, OAS is going to further provide proper solutions to treat such corn diseases or pests for the users. The challenge that OAS should handle is pertaining to how its quality can be guaranteed in order to be accepted well by the users. To ensure that the quality of the application is in good condition, it's imperative to conduct usability testing as means to acquire the value of satisfaction, learnability, efficiency, and effectiveness of the mobile application as the assessments for further improvement in the future. Without usability testing, the application may cause unacceptable troubles for the users. In this research, ten participants from different professions in agricultural field were gathered as subjects for the conduct of usability testing to evaluate the application. They were asked to finish/complete the given tasks and answer the questionnaires as means to assess the application. In the end, the results obviously portray that OAS has good/excellent value of effectiveness as much as 82,5; efficiency as much as 93,12%; learnability as much as 77,33%; and satisfaction as much as 73%.