The essential characteristic of transaction processing systems:
Atomicity: All changes that a transaction makes to a database are made permanent, or else are nullified.
Consistency: A successful transaction transforms a database from a previous valid state to a new valid state.
Isolation: Changes that a transaction makes to a database are not visible to other operations until the transaction completes its work.
Durability: Changes that a transaction makes to a database survive future system or media failures.
When used alone, the term Domain can mean a number of things. In order to avoid confusion, the term
application domain is used to refer to a Oracle Tuxedo application bounded by the configuration of a
tmconfig file. This application domain can be restricted to a single platform or shared memory (SHM) environment, or it can be scaled across multiple machines in a multiple processor (MP) environment.
LU6.2 is a particular SNA logical unit that identifies a specific set of services for program to program communication. Services include syncpoint, mapping of buffers into records, message confirmation, and security.
A Oracle Tuxedo System/T application is bounded by the environment described in a single
TUXCONFIG file. In /Domain, a Oracle Tuxedo System/T application can communicate with another application via a domain gateway group.