Individual differences in usability of cell phone SMS menus

Nowadays there are wide range and different cell phones but there are not any standardized produced cell phones. Menu systems of the cell phones create complications according to usability of the cell phone user interfaces. One of the main usability problems is encountered in SMS (short messaging services) sending procedure. In this study, we investigated usability issues of the SMS sending menu hierarchies and functions of the cell phones. Individual differences, technological experiences, symbol perception test, previous cell phone usage experiences and SMS sending frequencies of the subjects are observed and evaluated in the laboratory environment. Also, subjects ordered to perform SMS sending according to the well defined scenario. During the implementation of this scenario, SMS sending performances and subject satisfactions are evaluated by help of the inventories. Scope of this work includes sort of observations, implementation of the inventories and questionnaires by different data collection methodologies. These dependent and independent variables are evaluated with sort of statistical methods. Pearson correlation values and ANOVA results show us that there is a significant correlation between extraversion personality types with SMS sending frequency. Also, we observed that when the SMS sending amount is increased in a day, SMS sending period decreased by help of the learning effect.