SAP BASIS Overview & R/3 Architecture Tutorial with Understanding different SAP layers
The SAP Basis is a set of programs and tools that act as an interface with databases, Operating systems, Communication protocols, and business applications (such as FI, CO, MM, etc). The full form of BASIS is "Business Application Software Integrated solution". SAP applications such as FI, CO, PP, etc. can run and communicate with each other across various Operating systems and Databases with the help of BASIS.? Nowadays the Basis is known as Netweaver.?
The alias of?BASIS?is SAP Application Server Technology and the alias of NetWeaver is SAP Web Application Server. After adding a java stack enhanced the security standard for the business process. Both ABAP and Java stack can be monitored from one stage. Netweaver continues standard protocols such as HTTP, SMTP, XML, SOAP, SSO, WEBDAV, WSDL, WMLSSO, SSL, X.509, and Unicode format. We can say the Basis is the operating system for SAP applications and ABAP. Basis gives services similar communication with the operating system, database communication, memory management, runtime collection of application data, web requests, exchanging business data, etc.
SAP R/3 Architecture Tutorial
What is SAP R/3??
SAP R/3 is a 3 tier architecture consisting of 3 layers?
1. Presentation?
2. Application
3. Database?
In easy words, This is a?client-server architecture.?R?means Real-time system?
3 represents - 3-tier architecture.?
????User's PC:- Users can access the SAP system in two ways:-?
1. Through SAP GUI?
2. Through a Web browser?
It's called the front-end. Simply the front-end is installed in the user's PC not the application/database servers.?
?????The front-end takes the user's requests to the database server and application servers.?
Application Servers: -?The application server is built to process business logic. This workload is distributed among multiple application servers. With different application servers, the user can get the output more quickly.?
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The application server exists at a remote location as compared to the location of the user's PC.?
Database Server:?-Database server stores and retrieves data as per SQL queries made by?ABAP?and Java applications.?
Database and Applications may exist on the alike or different physical location.?
Understanding different SAP layers
1.Presentation Layer
2. Application Layer
3. Database Layer