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Written by Administrator
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Friday, 03 April 2009 22:12 |
An SAP environment consists of multiple SAP instances or installations.
Most common approach is to have three installations (also refer to as three-system landscape):
Development System - Used by developers to develop or modify the software.
Quality assurance or Test System - Used by testers to test the new development.
Production System - Used by users to run the business.
When developers modify the applications or functional consultant modifies any setup, changes are first promoted to the Test System where testers test the changes. Once approved changes are moved over to the Production System.
Some companies keep a separate installation as "sandbox".
Sandbox could be used for technical training. New things could be tried safely in this environment.
Some companies also keep dedicates systems for testing new releases. Such systems are called "Stage" systems. Other companies would simply test the new releases on their Test Systems.
From a technical roadmap perspective it is important to decide how many SAP installations would be there in your landscape. This has to be figured out before starting the actual installation. This decision is part of the "sizing". Each installation would have its own application tier and a database tier. Hence each installation would be using at least two machines.
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