revIgniter is based on the Model-View-Controller development pattern. MVC is a software approach that separates application logic from presentation. In practice, it permits your web pages to contain minimal scripting since the presentation is separate from the LiveCode scripting.

revIgniter has a fairly loose approach to MVC since Models are not required. If you don't need the added separation, or find that maintaining models requires more complexity than you want, you can ignore them and build your application minimally using Controllers and Views. revIgniter also enables you to incorporate your own existing scripts, or even develop core libraries for the system, enabling you to work in a way that makes the most sense to you.

If, on the other hand, you envision a fairly complex web site with various interactive areas - shopping carts, forums, chat, blogs etc. and a database on the back end of your site - following MVC conventions may be helpful for both developing and maintaining your web site. To learn more about MVC, search for "Model, View, Controller" on the net.