The data model (a blueprint for a persistent data storage design) determines whether data will be stored in an operational or an informational way.

Business enterprises may have various on-line transaction processing (OLTP) systems which create operational data like shipments, orders, financial data, etc by means of transactions that insert, delete or select data from databases.

The informational approach to data storage organizes data around subject areas which are summaries of the transactional data. This leads business enterprises to develop on-line analytical processing (OLAP) systems.

A & S Database Consulting Inc. helps enterprises to implement databases in both operational and informational forms, helping our customers to access their business information with speed and efficiency