att.milestoneUnit

att.milestoneUnit provides an attribute to indicate the type of section which is changing at a specific milestone. [3.10.3 Milestone Elements 2.3.6.3 Milestone Method 2.3.6 The Reference System Declaration]
Modulcore — 3 Elements Available in All TEI Documents
MitgliederrefState milestone
AttributeAttribute
unitprovides a conventional name for the kind of section changing at this milestone.
Zustand Obligatorisch
Datentyp 

<rng:ref name="data.enumerated"/>
data.enumerated
Empfohlene Werte sind:
page
physical page breaks (synonymous with the pb element).
column
column breaks.
line
line breaks (synonymous with the lb element).
book
any units termed book, liber, etc.
poem
individual poems in a collection.
canto
cantos or other major sections of a poem.
speaker
changes of speaker or narrator.
stanza
stanzas within a poem, book, or canto.
act
acts within a play.
scene
scenes within a play or act.
section
sections of any kind.
absent
passages not present in the reference edition.
unnumbered
passages present in the text, but not to be included as part of the reference.
<milestone n="23" ed="La" unit="Dreissiger"/>
... <milestone n="24" ed="AV" unit="verse"/> ...