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2. Online transaction processing - Wikipedia

   en.wikipedia.org/wiki/Online_transaction_processing

   Online transaction processing (OLTP) is a type of database system used in transaction-oriented applications, such as many operational systems. "Online" refers to the fact that such systems are expected to respond to user requests and process them in real-time (process transactions).

3. Transaction processing - Wikipedia

   en.wikipedia.org/wiki/Transaction_processing

   In addition, most online systems consist of a whole suite of programs operating together, as opposed to a strict client–server model where the single server could handle the transaction processing. Today a number of transaction processing systems are available that work at the inter-program level and which scale to large systems, including ...

4. Operational database - Wikipedia

   en.wikipedia.org/wiki/Operational_database

   Operational databases usually use an online transaction processing database which is optimized for faster transaction processing (create, read, update and delete operations). An operational database is the source for a data warehouse. [ 1 ]

5. Transaction processing system - Wikipedia

   en.wikipedia.org/wiki/Transaction_processing_system

   A transaction manager designed for rapid, high-volume online processing, CICS originally used standard system datasets, but now has a connection to the IBM Db2 relational database system. Runs on OS/360 and successors and DOS/360 and successors , IBM AIX , VM , and OS/2 .

6. Operational system - Wikipedia

   en.wikipedia.org/wiki/Operational_system

   Sometimes operational systems are referred to as operational databases, transaction processing systems, or online transaction processing systems (OLTP). However, the use of the last two terms as synonyms may be confusing, because operational systems can be batch processing systems as well.

7. CICS - Wikipedia

   en.wikipedia.org/wiki/CICS

   CICS family products are designed as middleware and support rapid, high-volume online transaction processing. A CICS transaction is a unit of processing initiated by a single request that may affect one or more objects. [2] This processing is usually interactive (screen-oriented), but background transactions are possible.