PARTONS: PARtonic Tomography Of Nucleon Software. A computing platform for the phenomenology of Generalized Parton Distributions

We describe the architecture and functionalities of a C++ software framework, coined PARTONS, dedicated to the phenomenology of Generalized Parton Distributions. PARTONS provides a necessary bridge between models of Generalized Parton Distributions and experimental data measured in various exclusive channels. We outline the specifications of the PARTONS project in terms of practical needs, physical content and numerical capacity. This framework will be useful not only for theorists to develop new models but also to interpret existing measurements and even design new experiments.