【国外标准】 Addressing - Part 4: International postal address components and template language

Defines key terms for postal addressing, postal address components and constraints on their use. Specifically, this document specifies postal address components organized into three hierarchical levels: elements, such as organization name or postcode, which have well-defined conceptual meaning and are not themselves made up of subordinate components, though they can be sub-divided for technical purposes; constructs, such as organization identification, which group elements into units form a logical portion of a postal address; segments, such as addressee specification, which group-related postal address constructs and/or postal address elements into units with a specific defined function.