It is likely that the first appearance of "data science" as a term in literature was in the preface to Naur's book "Concise Survey of Computer Methods"  in 1974. In that preface, data science was defined as "the science of dealing with data, once they have been established, while the relation of the data to what they represent is delegated to other fields and sciences." Since then, the concept of "data science" has been progressively discussed in the statistical and mathematical communities , at which time it essentially concerned data analysis. However, this has inspired today's significant move to the comprehensive exploration of scientific content and development.
Today, the art of data science  goes beyond specific areas like data mining and analysis, and the argument that data science is the next generation of statistics [5, 6, 7]. Data science is becoming a very rich concept which carries the vision and responsibilities of an independent scientific field that is systematic and inter-disciplinary.
So what is data science? We can define data science as being high level targeted, object focused, process based, or discipline oriented.
Data science high-level definition
A high-level statement is:
Definition 1. Data science is the science of data, or data science is the study of data. 
Data science disciplinary definition
From the disciplinary perspective, data science is a new interdisciplinary field that synthesizes and builds on statistics, informatics, computing, communication, management and sociology to study data and its environments (including domains and other contextual aspects, such as organizational and social aspects) in order to transform data to insights and decisions by following a data-to-knowledge-to-intelligence-to-decision thinking and methodology. Accordingly, a discipline-based data science formula is given below:
Definition 2. Data science = statistics + mathematics + informatics + computing + communication + sociology + management + decision | data + domain + thinking [1,2]
where "|" means "conditional on."
Data science process-based definition
From the process perspective,
Definition 3. Data science is a systematic approach to "thinking with wisdom," "understanding domain," "managing data," "computing with data," "mining on knowledge," "communicating with stakeholders," "delivering products," and "acting on insights." 
In contrast, data analytics understands data and its underlying business, discovers knowledge, delivers actionable insights, and enables decision making. From this perspective, we can say that analytics is a keystone of data science.
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 Peter Naur. Concise Survey of Computer Methods. Studentlitteratur, Lund, Sweden. 1974.
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