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With the proliferation of mobile devices, mobile learning has become a learning paradigm in education. The aim of this paper is to evaluate the media richness of various message delivery methods in mobile learning (m-learning) environment. This study evaluates media richness in respect to content timeliness, content richness, content accuracy and content adaptability in WhatsApp, Email, SMS, Twitter and BBM. One-way ANOVA analysis and Post hoc analysis show that: (i) SMS has better performance than WhatsApp, Email, Twitter and BBM on content timeliness; this implies that SMS may be more appropriate for delivering real-time information such as notifying or reminding of some time-sensitive matters, (ii) WhatsApp has better performance than Email, SMS, Twitter and BBM on content richness and so may be applied in information delivery that is rich in images and videos, (iii) WhatsApp has better performance than Email, SMS, Twitter and BBM on content accuracy and content adaptability. WhatsApp due to its media richness is more appropriate for supporting learning activities in a mobile learning environment. This study suggests that developers and designers of an m-learning environment could adopt WhatsApp as a suitable information delivery medium to support corresponding learning activities in a mobile learning environment.

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Having to spend 20 to 30 minutes on a queue, waiting for bought items to be scanned is a common problem that brings concern in this current shopping day in developing countries of Africa. This does not only cause wastage of time for the customers but also, it"s a sure sign which shows the incompetence of the performance of current barcodes checkout technology. To resolve this problem, a new technology is introduced which can improve the inventory system process. This technology has great potential for the automation of inventory control system which uses the 13.56 MHz operating frequency RFID technology. This paper describes and implements a RFID based inventory control system for supermarkets in Nigeria. General TermsRFID Technologies, RFID Based Inventory Control System.

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