**1. Introduction**

In the past few decades, works on technology acceptance research have always focused on cognitive instead of emotional factors to predict acceptance of technologies. The role of affect influence, state of mind, and feelings are not comprehended as comprehension

© 2016 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. © 2017 The Author(s). Licensee InTech. This chapter is distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/3.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

and wordings utilized as a part of this range has dependably been utilized conversely by specialists. Numerous conflicting reports and clashing discoveries from past investigations that consider influence have brought about modest number of research endeavors here. Nonetheless, inquiry about them has demonstrated that reflexes, social judgment, discernment, and conduct [1, 2] are impacted by influence, mind-set, and feeling that constitute the major parts of individuals.

In the information systems' (IS) area, client assessment or client acknowledgment of information technology (IT) is considered as a volitional conduct [3] and has been examined basically with an intellectual introduction [4–6]. Research in this area has dependably been vigorously affected by the insight state of mind conduct models, from Theory of Reasoned Action and the Theory of Planned Behavior [7]. Even though some works on affect, affectivity, playfulness, enjoyment, and emotion have been studied, the affective aspects are less central in most of these studies, with some exceptions, such as studies on aesthetics [8], computer playfulness [9], flow [10], and users' experiences in technology acceptance [11]. Therefore, if the roles of affect indeed play a role in technology acceptance, what aspect of study should be examined and in what relationships of role of affect toward other constructs in the technology acceptance model.
