“Data” means any information assets, including Big Data (high volume, high velocity, high variety information and data veracity). “Analytics” is what we can do with this information. With the development of Data & Analytics, new professions have emerged in the market: data engineers and data scientists. Data engineers are the builders and masters of various information systems. Data scientists, on the other hand, are people who know how to extract knowledge or insights from these large volumes of data – for example, to detect fraud in electronic payment transactions or predict which products a user is most likely to purchase.