Transaction processing

Gray and Reuter 1993] J. Gray and A. Reuter, Transaction Processing Concepts and techniques, Morgan Kaufmann, 1993. 

For our real estate example, we would like to complete the real estate transaction process more efficiently, especially pertaining to the services provided by agents working within a proprietary database (Multiple Listing... 

For example, let s say the Kiosk Configurators want to significantly improve process capability due to new competitive pressures. They decide to redesign their solution, which is a transactional process comprised of various subprocesses, including but not limited to ... 

For instance, designing inflatable movie screens that can float in pools is one thing, but making them is another. It s the same with transactional processes like those in banking and insurance there s no substitute for a robust, well-documented, and efficient process that all can see and follow. 

If one asks the question, What is my computer supposed to be doing when I m providing pharmaceutical care the answer will not only describe the appropriate hardware or device that matches the needs of the professional providing the care, but should also describe the optimal software that will support the provision of pharmaceutical care. We define the point-of-care as the place where a pharmacist provides pharmaceutical care to a patient or assists a colleague (pharmacist, physician, or nurse) in the provision of care. Many kinds of software available on the market today focus solely on transaction processing, with minimal decision support available through prospective drug utilization review (DUR) modules. 

ACID Properties of transaction processing atomicity, consistency, isolation, and durability. 

Transaction service This service manages distributed transaction processing, such as consistency control, that maintains a database in a consistent state and enables recovery control from... 

The transaction processing should ensure that either all the operations of the transaction complete successfully (commit) or none of them commit. For example, consider a case in which a customer transfers money from an account A to another account B in a banking system. If the account A and the account B are registered in two separate databases at different sites, both the withdrawal from account A and the deposit in account B must commit together. If the database crashes while the updates are processing, then the system must be able to recover. In the recovery procedure, both the updates must be stopped or aborted and the state of both the databases must be restored to the state before the transaction began. This procedure is called rollback. 

In a distributed transaction system, a distributed transaction is composed of several operations involving distributed resources. The management of distributed transactions is provided by a transaction processing monitor (TP monitor), an application that coordinates resources that are provided by other resources. 

APS systems also differ in how they approach the generation of plems and schedules. In some systems, planning is done periodically in batch mode, with integrated plans being developed for a set of products and workcenters. On the other hand, others are focused on transaction processing, where a plan is constructed and capacity allocated incrementally as orders arrive. 

TPS, see Toyota Production System TP (transaction processing) monitor, 723 TQIP, see Total quality improvement process... 

Transaction processing (TP) monitor, 723 Transactions, four ACID properties of, 721-723 Transcendent approach to service quahty, 625, 638, 639... 

Traditional database systems have tended to be designed with an emphasis on on line transaction processing (OLTP), in which there are large numbers of short transactions running over the database. In our biological example, a typical transaction might add a new sequence entry into the database. Such transactions typically read quite modest amounts of data from the database, and update one or a few tuples. 

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