SAP / SAP Beginner (0 to 2 yrs) Interview questions
What is the presentation layer in SAP's 3-tier architecture?
The presentation layer is the topmost tier — it's what the end user actually sees and interacts with, typically the SAP GUI application (or, for newer applications, a web browser running SAP Fiori). Its job is purely to render screens, capture user input, and send requests to the application layer; it doesn't contain business logic itself.
flowchart LR
A[User types data / clicks button] --> B[Presentation Layer]
B -->|sends request| C[Application Layer processes logic]
C -->|returns result| B
B --> D[Screen updates for the user]
Because the presentation layer is lightweight and logic-free, users can run it from ordinary desktop computers or browsers without needing significant local processing power — the actual computational work happens on the application server, not on the user's own machine.
What is the primary role of the presentation layer?
Why doesn't the presentation layer need significant local processing power?
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