Transaction Processing System

What is a transaction processing system?

A transaction processing system collects and stores data about transactions and sometimes controls decisions made as part of a transaction. The transaction is the activity that changes stored data, examples of such an activity would be using a credit card, making a reservation or making a cash withdrawal at an ATM.

There are two types of transaction processing:

Batch transaction processing: this is information that is gathered and stored but not processed immediately i.e. the processing of an invoice or cheques in a banking system.

Real time transaction processing: this is a transaction which is processed immediately and the operator has access to on-line database i.e. withdrawal from a bank account, Library loans.

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