What is your the project architecture and Process?

My Project Architecture is divided into Three Layers.
        

1. Presentation Layer (Client or Browser).
2. Business Layer. (Frameworks and Logical). 
3. Database Layer. (Like: Oracle/SQL/Mysql). 

Presentation Layer (Client or Browser): it is also known as client layer (Like UI). The main functionality of this layer is to communicate with Application layer.
Business Layer (Frameworks and Logical): It is also called business logic layer interacts with database layer and send required information to the presentation layer.
Database Layer. (Like: Oracle/SQL/Mysql):The Data is stored in the Layer. Business layer communication with database layer to retrieve insert, update, delete the data.

Project Process: When ever we submitting the request from client to server component then controller receives the request from browser . so you mast remember every request will reach to controller component.
The controller receives the request from browser then controller has to identity a particular model. then it will execute be java class or business logic's available. Hence: Here controller acts as mediator between view and the model.
After executing model part if it is required to interact with database then model part interact with data.
Then view layer display of the model to the end user. then generated the require dynamic web page return to browser. finally view part send to the response to the client.