namespace

A conceptual space that groups classes, identifiers, etc. in order to avoid conflicts with items in unrelated code that carry the same names.

To categorize by placing into a namespace.

Something I haven't captured in this schema is that the GEDCOM spec also says the structure is extensible; arbitrary namespaced elements may be inserted […]

Although the excessive namespacing might seem like a hassle, there's always a really quick way to create a shortcut.