Most of developers incorrectly consider User Experience (UX) and User Interface (UI) to be synonymous with usability. But, usability is progressively used in a thinner sense as a symbol of how convenient it is for users to complete the required tasks and is related with the concept of usability trying.
Therefore, usability is perceived by countless as a tactical piece of the software development process. User experience, on the contrary, is used by UX experts in a much broader sense and encompassed a variety of aspects: user involvement, usability, visual appeal of the product, etc. This term better reflects the psychological and behavioural characteristics of user interaction with software products (Guo, 2012)