evolution

Previous application model

The server side have:

• All the business logic (database access, service layer)
• Routing
• Security
• Page rendering (HTML construction, css serving, assets)

The browser side have:

• A fragment of the UI, for interactions
• That's all ...

Applcation lifecycle

1. The user request a page
2. The server treat the request, it makes one or sevral database requests
3. The server construct the pages (html, js , css, images, ...)
4. The server return the page to the server inside an http response
5. The user request another page
6. The server perform again the 2,3,4

A necessary evolution

The application architecture is a model which has to evolve in order to be able to benefit form all new technologies:

• JavaScript performance improvements
• HTML5 APIs (Cache, JS, CSS3)