Definition - What does R/3 Client/Server Application mean?
R/3 client/server application refers to a multitiered platform that supports the R3 enterprise application (EA) group. Developed by SAP AG, R/3 client/server applications are responsible for general OS tasks and provide an environment where multiple users can run separate applications. R/3 applications run inside operating systems and do not require actual host OS interaction.
R/3 replaced R/2, which is still in use.
Techopedia explains R/3 Client/Server Application
R/3 client/server applications run inside multitiered systems, where software components are arranged in tiers. Each R/3 implementation is made up of three layers, as follows:
Database layer: Contains an application database and database management system (DMS)
Application layer: All R/3 system application programs are run on the application layer, which contains application program components.
Presentation layer: Contains the software component that comprises the graphical user interface (GUI) between R/3 systems and users.