Maps comprise a number of definition records, and are compiled to a loadable form. Map source can be kept in any convenient source library in a similar fashion to NCL procedures.
All compiled maps are lodged in a file that serves as the Map Library. From this library, the loadable form of a map can be accessed on demand. Normally a map is loaded only when specifically requested for use by an NCL procedure. When no longer required, it can be deleted from storage by the system.
Note: For more information about the use of maps in NCL procedures, see the Network Control Language Programmer Guide and the Network Control Language Reference Guide.