 This system allows, for example, to determine the elements from the input models that have been used to generate a specific piece of text and the part of the code generator that has been involved.The parser and the generation engine, critical components of Acceleo, can also be used in "stand-alone", without being deployed on Eclipse.Acceleo generates a Java class to launch the generation programmatically thus allowing the integration of an Acceleo generator in any Java application.