![]() A network links terminals to mainframe computer Uses a terminal or workstation to enter data and display the results of the TPS Instant confirmation of a transaction but does require access to an online database Sorting the data is expensive and time consuming Used for pay cheques and when a time delay does not decrease the usefulness of the resultsĮrrors cannot be corrected during processing Collects the transaction data as a group and processes it later TPS systems reduce costs by reducing number of times data must be handled If roles and responsibilities are allocated, the TPS should maintain these requirements Must support an organisation's operations Flexibility results in too many opportunities for non standard operations, resulting in problems due to different transaction data Every transaction must be processed in the same way If failure occurs, recovery must be quick and accurate Turnaround time from transaction input to the production output must be a few seconds or less The four important characteristics include In the context of databases, a single logical operation on the data is called a transaction. ACID (Atomicity, Consistency, Isolation, Durability) is a set of properties of database transactions. Main processes are collecting and storing Designed in conjunction with the organisation's procedures Examples: Point of Sale, credit card payments, Transaction is an event that generates or modifies data to be stored in an information system Transaction processing systems(TPS) collect, store, modify and retrieve the transactions
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |