Within the data science field there are two types of data processing systems: OLTP and OLAP. OLTP- Online transaction processing, it's optimized to process a large number of transactions. it's usually streamlined for the front-end workers like bankers, tellers. E-commerce apps, banking apps. OLAP - Online analytic processing. This allows you to do multi-dimensional data analysis. OLAP is optimized to conduct analysis on a large amount of data.