Transaction Processing Systems

• A transaction processing system is a computer system which responds immediately to user requests. Each request is considered to be a transaction.
• Automatic teller machines for banks are an example of transaction processing.
• Basic business system that serve the organization's operational level
• input:Transactions, events
• Processing, Sorting, listing, merging, updating
• Output: Detailed reports, lists
• Users:Operations personnel, supervisors 
• functions
• Create( e.g. opening account):capture data
• Read( e.g. check balace): retrieve data
• Update( e.g. change contact): modify data
• delete (e.g. remove)
• enter data