T4 templates and their purpose and Customizing T4

T4 stands for Text Template Transformation Toolkit. You can use these tenmplate to generate the strongly typed code. Here are few examples:

http://www.c-sharpcorner.com/UploadFile/b182bf/what-is-t4-template-in-mvc/

 

http://www.dotnettricks.com/learn/entityframework/using-t4-templates-in-entity-framework