LunchHero - a student’s everyday hero : A case study in how to construct a web application with high usability regarding navigability and ease of purchase

Abstract: At present, there are food trucks at the Linköping University campus offering lunch meals in a traditional way, without using any complementary web applications. However, a market study conducted during the pre-study shows that customers desire additional services from the food trucks and would increase their purchasing frequency if some of these features were to be implemented. For instance, the lack of online pre-ordering is a causal factor to the issue that customers spend a lot of time in line waiting for their turn to order food. This study aims to find  ways to implement some of these services into a web application, by focusing on high usability, with regards to good navigability and an easy purchasing process. The application was  developed on a sprint basis and at the end of each sprint the application was subjected to user testing. The tests consisted of a System Usability Scale, a modified version of Bailey et al.’s First Click Analysis as well as a quantity of click test in accordance with Chapman’s theories. A high System Usability Scale score in addition to a successful First Click Analysis indicates that the applied methodology has resulted in a web application that satisfies the goals of having high usability and navigability as well as an easy purchasing process.