Mobile learning has been investigated from a range of perspectives, but there is little published research on usability of m-learning. To have successful educational m-learning it is essential to devise and implement appropriate usability testing methodologies to evaluate the usability of mobile applications. The goal of this research is to compare the results between two usability testing methods aimed for e-learning and applied in m-learning and the one proposed by the authors called MLUAT usability testing methodology for m-learning.
INTRODUCTIONMobile learning has been investigated from a range of perspectives, including the use and the potential of wireless technologies in education, technology adoption models, pedagogical approaches, architectural issues related to the design, usability of technology and m-learning and human-computer interaction.To our knowledge, also there are little evidences in the research literature for usability testing methodologies and of m-learning environments in terms of the ease-of-use and efficiency of the user interface of the environment. Some evidences show that throughout empirical studies, there are some usability testing methods used. Majority usability testing include questionnaire surveys or interviews (in the place, telephone or email), or observational studies; or quantitative measuring of some usability attributes as: learnability [16for desktop applications are used, which are not appropriate and do not address the issues related to the current limitations of mobile devices which are supposed to be used as learning mediums. Also, there are various guidelines for usability testing of desktop applications which are not always relevant to mobile applications [13]. "The latest mobile devices are agonizingly close to being practical, but still lack key usability features required for mainstream use" [11]. There is a lack of methodologies ascertained as good usability testing methodology for designing usable mobile applications. Therefore, it is essential to devise and implement appropriate usability testing methodologies to evaluate the usability of mobile applications.Which is the best usability testing and evaluation method regarding m -learning applications? It is a great challenge for the m-learning researchers and developers. Even though there are researches conducted regarding to best usability testing method for elearning applications, it still can not be applied in m-learning concerning the above mentioned arguments.Hereby, the goal of this research is to compare the results of two usability testing methods aimed for e-learning and applied in m-learning and the one proposed MLUAT usability testing methodology for m-learning [2]. A similar study to e-learning applications is done by [4] for web-based e-learning applications. The aim is to confirm the effectiveness of the proposed MLUAT methodology for usability testing of mobile applications [2]. To accomplish that a comparison study among the proposed MLUAT methodology with other two methodologies for usability t...