The Web Interaction Model provides you with one way of understanding how Web processes work together.
This model accounts not only for hardware, software, and networks, but also for the user's experience. The Web Interaction Model is based on the idea of a series of layers operating dynamically, with each layer responding to input and data from the other layers.

You should keep in mind that there is overlap between the layers of the model. Each layer represents a discrete element of the Web. In some cases, elements support the layers above them, but in all cases, each layer is affected by the others.
This model makes distinctions among the elements of the Web, so you can consider your options for each element independently when you are clarifying your Web site needs. Your organization's business goals should drive the choices made at each layer.
When planning a Web site, do not fall into the trap of looking at only one element.Careful planning for website is priceless.
Consult all team members for input in their area of expertise. End user satisfaction is affected by every component and layer of your Web site.
The next lesson provides a review of the Web Development Process Model.