Web 2.0 Architectures

Architectural Models That Span Tiers

The SOA and MVC architectural models are key pillars of Web 2.0. The services tier and the client application tier must be built using similar design principles so that they can provide a platform for interaction. Resource tier and client application tier designers tend to abide by the core tenets and axioms of the Reference Model for SOA and apply application design principles such as MVC. The MVC paradigm encourages design of applications in such a way that data sets can be repurposed for multiple views or targets on the edge, as it separates the core data from other bytes concerned with logic or views.

Model-View-Controller (MVC)

MVC, documented in detail at http://en.wikipedia.org/wiki/Model-view-controller, is a paradigm for separating application logic from the data and presentation components. MVC existed long before Web 2.0, but it can be usefully applied in many Web 2.0 applications and architectures. It’s a deployment pattern whereby application code is separated into three distinct areas: those concerned with the core data of the application (the Model), those concerned with the interfaces or graphical aspects of the application (the View), and those concerned with the core logic (the Controller). MVC works across multiple tiers: it allows application reskinning without affecting the control or data components on the client, and it enables Cloud Computing, where virtualization results in the controller and model concerns being distributed ...