Architecture of Microsoft Dynamics AX

The three tier architecture is defined as:

1. Database: For the purpose of storing data, Microsoft Dynamics AX application uses data and data model stored in the SQL Server Database.
2. Server: Responsible for running the application business logic, The AOS runs the business logic of the application.
3. Client: Allows user to access data from the database and run the business logic on the server, The end user accesses the application through the user Interface which is the Microsoft Dynamics rich client or Enterprise Portal