Back to Interface Design Patterns for Script Includes Introduction The first interface design pattern for Script Includes that we will take a closer look at is the Class Pattern. The primary use case for this interface pattern is to leverage inheritance… or more properly prototypal inheritance. Prototypal inheritance will allow a Script Include to inherit behaviors from another. One example of this is Script Includes that inherit from AbstractAjaxProcessor to create Glide Ajax scripts but let’s look at a custom application example.