H.2.1.1 Global Data Flow Model

The Print Management Data Flow Model (Figure H.2-1) consists of three main processes:

Note: The Standard uses the word film as a general name for different types of hard copy media (e.g. photographic film, paper).



The Film Session Management process is responsible for acquiring all the information which is required to print the film session. The film session is the atomic work package of the Print Management Application and contains one or more films related in a user defined way (e.g., belonging to the same exam, patient) that are originated from one host (e.g., workstation, diagnostic modality) and that are printed on one hard copy printer.

Each film consists of one or more images and zero or more film related annotations. An annotation consists of one or more lines of text.

Each image consists of pixel data and zero or more overlay planes. The user controls the look of the film by assigning values to print parameters.

Print parameters are defined at film session, film, image and annotation levels. The parameter level determines the scope of operation of the print parameters (e.g., print parameters of the image level are valid for the corresponding image).

The inputs of the Film Session Management process are:

The output of the Film Session Management process is the Print Job, which contains all the information to print the film session.

The Print process prints a set of films, based on the information in the Print Job. The Print process is implementation specific and its management is beyond the scope of the DICOM standard.