1. IntroductionAs humans we have a plethora of senses that provide us with information about our surroundings. Our sight, hearing and touch predominantly define how we perceive our environment and scan the world [1]. Hundreds of thousands of years of evolution have taught us to use the information gathered by our senses to efficiently communicate ideas with each other and to respond appropriately. Therefore, when people interact, they can use intrinsic situational information to increase the flow of conversation. This information is often referred to as context [2]. On the contrary, in human-computer communication this transmission of ideas is missing because the computer does not have the same perception as a human being. The infusion of implicit data into human-computer interaction is therefore essential for the implementation of more useful computational services [2, 3]. In the early 1990s, ubiquitous computing researchers at Xerox PARC caused a shift in thinking. They suggested that context could act as a means for system adaptation [4]. In 1994, Bill Schilit coined the term “context-aware computing” [5] to characterize systems that can perceive and react to a variety of situational stimuli. At the time, context was primarily limited to location, but over the years many authors argue that "there is more to context than location" [6, p.893]. The importance of context has gradually increased over the last two decades due to the progressive permeation of computers into our lives. Consequently, context awareness has been an important topic for mobile and pervasive systems research for many years [7]. A major factor in the advancement of mobile context awareness is undoubtedly the mobile device. Its universality couples with the rise...of the paper medium......artphone-based context provider for location-based services", Pervasive Computing, IEEE, vol. 10, no. 2, pp. 58 -67, April 2011.[17] 2007, pp. 244–258.[ 18] C.W. Song, D. Lee, K.Y. Chung, K.W. Rim, and J.H. Lee, “Interactive middleware architecture for lifelog-based context awareness,” Multimedia Tools and Applications, Springer, 2013, doi: 0.1007/s11042-013-1362-7[19] W. Dargie, J. Plosila and V. De Florio, “Existing challenges and new opportunities in context-aware systems”, Proc. Ubicomp 2012, pp. 749-751 , September 2012. [20] "context." Online Etymology Dictionary (2013). 2013].