Artificial Intelligence (AI) is surprisingly hard to define the term in the modern world. Although there are hopes harbored in development in progress based on the AI, there are also ethical doubts and questions related to this matter. The main goal of this paper is to discuss the main definitions and elaborate on one approach for future qualitative research. This paper presents a review of definitions in a view of ethics and choice theory. Definitions are presented early ideas to the big data era to set a decision-making problem. The presented research is important because most of the industry sectors depend on technology and computers in particular.