A number of methods and measures have been used by researchers in software evaluation. Usability metrics is one of the approaches that has been used as a guideline to evaluate the quality of the system in many mobile applications. However, the metrics used for evaluation method keep changing due to new inventions of mobile phones. Thus, there is a need to create a dynamic model for evaluation that can grow together with new inventions and technology. In this paper, a dynamic usability metrics model for evaluation of mobile applications was designed. The model comprises usability goals, questions and metrics for evaluation of applications on mobile phones. To ensure that the model is reliable and effective, a usability study was conducted on two applications installed in different mobile phones. This model proves to be applicable for evaluation of mobile phone applications whereby its questions and metrics can be dynamically changed accordingly to comply with the requirements of the evaluators.
the challenge for future generation of wireless environment is on how to choose the appropriate wireless access network connection when there are several different wireless networks are existed. Hence, a vertical handover network selection (VHONS) being used to aid in term of service quality for user's satisfaction of the mobile terminal. This article intends to propose a new method of choosing the vertical handover network. This method covers the weight distribution and cost factor techniques. The weight distribution is used to measure different weights for existing wireless network based on the user's preference and mobile terminal power. The cost factor technique is also used to identify the cost for performing handover target by considering every network parameters and its weight. Results obtained showed that the algorithm has the ability to increase user's satisfaction compared to other algorithms, which consistently choose one accessible network.
The number of password-protected Internetbased applications is increasing significantly compared to a decade ago. Consequently, it causes an increase in the number of login credentials that users have to manage, for both Internet ad mobile environments. This paper presents a study that specifically focused on students' login credential management for mobile computing users. A behavioral study was conducted on 250 students from Universiti Utara Malaysia to understand how they managed their login credential while accessing the Internet via their mobile devices. The results suggested that students practiced poor login credential management. The paper recommends approaches that can be taken to improve login credential management for users with mobile devices.
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