Which layer includes the functional logic of the web application, which is implemented using technologies such as .NET, Java, and middleware?

Which layer includes the functional logic of the web application, which is implemented using technologies such as .NET, Java, and middleware?

• A. The client or presentation layer
• B. Business Logic Layer
• C. Web-Server Logic Layer
• D. Database Layer

Answer: (B)

The main concept here is where the application’s rules and processing actually live. The functional logic, including business rules, workflows, validations, and core processing, is implemented in the business logic layer. This is typically built with server-side technologies such as .NET or Java and often works with middleware to coordinate actions, enforce policies, and connect with other services. The client/presentation layer is focused on the user interface, while the database layer handles data storage and retrieval. A separate “web-server logic layer” isn’t a standard distinct layer in most models; the server-side logic that implements business rules belongs in the business logic layer.

The main concept here is where the application’s rules and processing actually live. The functional logic, including business rules, workflows, validations, and core processing, is implemented in the business logic layer. This is typically built with server-side technologies such as .NET or Java and often works with middleware to coordinate actions, enforce policies, and connect with other services. The client/presentation layer is focused on the user interface, while the database layer handles data storage and retrieval. A separate “web-server logic layer” isn’t a standard distinct layer in most models; the server-side logic that implements business rules belongs in the business logic layer.