Architecture

Microsoft Dynamics AX has a three-tier architecture.Three-Tier ArchitectureThree-tier architecture is defined as having a separate database, server and client
where:• The database stores the data.• The server runs the application business logic.• The client application allows users to connect to the server to access
business logic and use the data in the database.
In Microsoft Dynamics AX the three tiers include the following:• A SQL Server Database that houses the data entered into, and used
by, the Microsoft Dynamics AX application. It also houses the model
store that contains the application elements. (Application elements
are explained in the following lesson)• An Application Object Server (AOS) is a service that runs most of
the business logic. This runs continuously on a central server.
•The Client application is the user interface through which an enduser accesses Microsoft Dynamics AX. There are various clients
available including the Microsoft Dynamics AX rich client and
Enterprise Portal.