Data science and business analytics are separate fields, but they are related in their core focus on data analysis and driving data-driven organizational decisions to improve performance, growth, efficiency and other goals. Business analytics professionals and Data scientists use different tools and skills of varying sophistication and complexity; for example, Data scientists' are skilled in working with "big data" using computational tools like programming languages and machine learning algorithms, whereas Business analysts or Data analysts typically use Microsoft Excel and SQL to analyze data and derive insights.