Is the Star schema suited to OLTP ? If Star Schema is suitable for PLTP, then it is generally used in operational systems, operational data stores, or an EDW.

Online Transaction Processing is a standard, normalized database structure and which designed for transactions, means that inserts, updates, and deletes must be fast. OLAP (Online Analytical Processing and Star Schema are interchangeable words. An OLAP system consists of a relational database designed for the speed of retrieval, not transactions, and holds read-only, historical, and possibly aggregated data.