3 tier software architecture diagram vision

It defines how the application looks.įunctionality layer: This is the layer that presents the functions, methods, and procedures of the system based on the business rules layer. It is the most visible layer of the application. User interaction layer: This is the layer that interacts with users through screens, forms, menus, reports, etc. Let’s see what this looks like: Layered architectureĪs you can see in the diagram above, a standard layered architecture has five parts: What Is the Structure of a Layered Architecture? It is an excellent example of a layered architecture. Gmail is divided into at least three layers, every one of them has a mission, and they exist separately to handle different processes at different levels.

There is also another layer that interacts with a database where user email messages are stored (millions or maybe billions). There is an external layer that communicates with the users in their language. There is an internal layer that does all the processing. Google developed the Gmail application in different layers: They developed an internal version that does all the message processing, and then developed different external user interfaces that work in many languages. Have you ever wondered how Google makes Gmail work in different languages all over the world? Users can use Gmail every day in English, Spanish, French, Russian, and many more languages.ĭid Google develop different Gmail applications for each country? Of course not. At the end of the chapter, I will show you a real-word example (Amaze project management software), and then you will solve a similar case applying what you’ve learned. In this chapter, we are going to cover the layered architecture, what it is, and in what cases it is the perfect solution for a design problem.

3 tier software architecture diagram vision