A typical SAP system consists of various business modules, numerous sector and cross-sector solutions. A distributed system of this nature requires a common infrastructure, which is provided by SAP NetWeaver and in particular, by the SAP Web Application Server (WAS).
Major points to note and keep in mind would be:
• R/3
• Layers of WAS: presentation, application and database.
• The interfaces used between presentation and application, application and database.
• ICM – Internet Communication Manager
• Roll in / Roll out
• Work processes, Gateway and dispatcher.
If the above points are not clear kindly Google and try to find more about them or post your queries here. It would help you in connecting the dots ahead.
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