Website forms are commonly used for collecting information from users. Users choose one or more alternatives from a list. However, data input can be time-consuming. We therefore set out to explore which multiple selection method is the fastest and perceived most positively; the ones relying on multiple checkboxes or list boxes. An experiment with 24 participants was conducted involving 20 multiple selection tasks. The result shows that the mean response time to select three options in each question of multiple checkboxes was faster and more positively perceived than multiple list boxes. The results thus suggest that web developers should use multiple checkboxes instead of multiple list boxes.

Internet of Things is a concept that many physical devices can connect and share information. IoT development in mobile apps aimed to control connected devices. This paper describes the form of an application-led project by building a smart application system using the Lego Mindstorm kit. It decides on and simulates scenarios for the IoT solutions and the design and develop a proofof-concept mobile and IoT application with emphasis on the technical implementations, architectural considerations, and interoperability. It demonstrates through graphical programming environment the configuring, implement and evaluation of distance sensor technologies in a mobile application.