From Science Europe Data Glossary
Definition: data science is the discipline dealing with extraction of meaning or knowledge from data.
Explanation: data science employs techniques and theories drawn from many fields within the broad areas of mathematics, statistics, and information technology, including signal processing, probability models, machine learning, statistical learning, computer programming, data engineering, pattern recognition and learning, visualization, uncertainty modeling, data warehousing, and high performance computing. The discipline is not restricted only to so-called big data, although an important aspect of data science is its ability to easily cope with large amounts of data. The development of machine learning, a branch of artificial intelligence used to uncover patterns in data from which practical and usable predictive models can be developed, has enhanced the growth and importance of data science.