Data analytics is the science of analyzing raw data in order to make conclusions about that information. Many of the techniques and processes of data analytics have been automated into mechanical processes and algorithms that work over raw data for human consumption.Data modeling is a set of tools and techniques used to understand and analyse how an organisation should collect, update, and store data. It is a critical skill for the business analyst who is involved with discovering, analysing, and specifying changes to how software systems create and maintain information.