Templating is the process of taking some data C (representing content) and transforming it with some transform/template T (representing presentation/layout) to output O (representing the presentation of the content). Reverse templating is the process of reversing this process. After output O has been created and a user has modified O , reversible templating will decompose O back into a modified version of C and T . Reversible templating is extremely powerful because one only needs to create a single template to create a final output presentation, and the presentation can be modified to modify the content and layout. It is not necessary to create separate processes or interfaces for the modification of the content and layouts.