Some output files are linked to assets through an instance of this asset for a given shot. Each time a CG artist is satisfied by what he did on a working file, he can create an output file that will be linked to a target instance. It keeps track of the working file at the origin of the output file. An output type is required for better categorization (textures, caches, ...). A task type can be set too to give the department related to the output file.