\section{GENERAL STRUCTURE OF THE DRAGON INPUT}\label{sect:GeneralStructure} The input to DRAGON is set up in the form of a structure containing commands which call successively each of the calculation modules required in a given transport calculation. \input{Section2.01.tex} % input description \input{Section2.02.tex} % general DRAGON structure \input{Section2.03.tex} % the DRAGON modules \input{Section2.04.tex} % the Utility modules \input{Section2.05.tex} % the DRAGON data structures \input{Section2.06.tex} % Main modifications in new release