4.1.1 DETAILED DESCRIPTION OF FUNCTIONAL ENTITIES

4.1.1 DETAILED DESCRIPTION OF FUNCTIONAL ENTITIES

In the following subsections, specific flows of information among the functional entities are identified in italics the first time they appear in the text. The detailed functional descriptions of the subsections are accompanied by diagrams (figures 4-2 through 4-7) that depict only the major data flows within and among the entities. Omitted for clarity are minor flows such as acknowledgment notices. Annex A contains a figure that combines figures 4-2 through 4-7 to demonstrate overall consistency. However, this is not to be taken as a recommended design or implementation, and actual implementations are not expected to have a one-to-one mapping to the functions shown, and may for example choose to combine functions or break out functionality differently.