Atomicity, Consistency, Isolation, Durability. Four critical objectives that define the success of a transaction.

A program that defines the boundaries of a transaction and specifies the actions that constitute a transaction.

A transaction that involves several services, which might be located in different server programs. Also called a global transaction.

A form of transaction processing that supports transactions whose operations are distributed among different computers or among different databases from different vendors.

A transaction that involves several services, which might be located in different server programs. Also called a distributed transaction.

In the X/Open DTP Model, a path of communication between any two parts.

A transaction that involves one service within a single server program, and accesses only one database.

Provides access to shared data. Usually a resource manager is a database server or a file-access system.

A unit of work that consists of an application-specific sequence of operations.

Manages the routing and transaction processing control of a service request. The TPM manages global transactions and coordinates their resolution and any failure recovery.

Lets the application program call the transaction monitor to request transaction management. Also known as the AP-TM interface.

Allows two-way communication between the transaction monitor and the resource manager, and implements the two-phase commit between them. Also known as the TM-RM Interface.