The term « Web 2.0 » means all techniques, features and uses of the World Wide Web, characterized by simplicity and interactivity. It relates in particular interfaces allowing users with little technical knowledge to appropriate new features of the web. Users can on the one hand contribute to the exchange of information and interact (share, exchange, etc.), both in content and page structure.
The user becomes, using the tools at its disposal, an active person on the canvas. Web 2.0 is the evolution of interactivity to web through an internal complexity of the technology, but for simplicity of use, technical and computer knowledge is not necessary for users.