User-Centered Design, M-Learning, Usability

Today IT systems can be developed by creating an interaction between human andcomputer but these systems are not examined enough about usability of the systems.Usability is a term refers to user experience. It is explained by ease of use of a product.A highly usable system provides some benefits for both users and businesses such asefficiency and quality. Also this is related with User-Centered Design and Design-BasedResearch.User-Centered Design (UCD) is a design process, which focuses on users indevelopment lifecycle who will use the product. The focus area of UCD helps to getexact requirements from users. To make successful UCD process, Design-BasedResearch methodology is the best, which has a similar lifecycle in process.System Usability Scale (SUS) is a measuring tool to get a scale about usability of asystem. It is mentioned as “quick and dirty” yet it is reliable. SUS provides anevaluation of usability of a system by 10 statements and it gives a score over 100.In this study, an M-Learning application was developed with high usability. UCD wasintegrated with Design-Based Research methodology in development process and thesystem was evaluated with SUS.As the result of this study, UCD and Design-Based Research methodology wasintegrated and applied successfully. The M-Learning application, which is developed invithis study, is evaluated by users with using SUS and the application got score 90,25over 100.