Namespace Routing Language From Wikipedia the free encyclopedia In its simplest form, a Namespace Routing Language (NRL) schema consists of a mapping from namespace URIs to schema URIs. An NRL schema is written in XML. DSDL Part 4 (ISO/IEC 19757-4), NVDL is based on NRL. External links[edit] NRL home page NVDL information This computer networking article is a stub. You can help Wikipedia by expanding it.vte