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2. Traditional transactional
2.1 Functional features
Transactional data processing is an environment for running database consultation and/or updating operations on behalf of a large to very large number of users (a few hundred to a few thousand, or even tens of thousands in extreme cases).
Data volumes are generally substantial, but not very large (a few hundred Megabytes to a few tens of Gigabytes).
Update processes are generally short. For processing to be meaningful, it must be...
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Traditional transactional
Distributed transactional
Bibliography
Product range
Transactional manufacturers
Most computer manufacturers offer transactional systems (for complete and up-to-date information, please refer to the individual product descriptions).
IBM offers several transactional environments. The oldest is IMS (Information Management System). This is the reference transactional environment for very large IBM systems.
The more recent...
Standardization
The de facto standard for cooperative transaction protocols is IBM's APPC (Advanced Program to Program Communication) protocol.
OSI has standardized a cooperative transaction protocol equivalent to APPC under the name OSI/TP, which is built on the OSI session, whereas APPC is built on IBM's SNA session. Applications using APPC are portable to OSI/TP.
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