This paper aims to answer the question: How do you design and develop a safe point of sale system with a containing database, API and client?

This paper aims to specify what puts a Virtual Reality (VR)-user in the psychological state of “Presence”.

This paper aims to specify what makes a videogame replayable. Using theory of flow, supported by Nick Yee’s Motivations of online Gaming and the theory of immersion, we have assessed the elements that contribute to a game’s replay value.