The Corpus Thread - Det Danske Sprog- og Litteraturselskab

3.2. Header structure 35
appDesc
(may be left out)
(optional)
The element has the following attributes:
xml:id unique XML identifier which is referenced by the corresponding annotation
layer in the text.
type specifies both the task (segmentation, annotation) and whether it was
performed by an automatic application or a manual procedure (or a
combination of both).
subtype gives a further description of the applied tool taken from a fixed
list of options.
ident supplies a unique identifier for the application/procedure.
version supplies a version number for the application/procedure. 19
n gives supplementary info about the applied tag set or tokenization mode.
when gives the date when the application was executed on the text.
The element contains an element giving a freetext
description of the application.
The element within references that/those application/applications
whose output has been used as input for the application
in question as annotations can be added as layers on each other, cf.
Chapter 4. This element is left out if an annotation refers to the base version
of the text and not to another annotation layer.
Finally, the optional element may reference certain resources a
given tool has been using in cases where this is important.
19 It may seem weird to apply version numbers to manual procedures. However, the version
attribute is mandatory in TEI and also manual procedures may alter over time and
should in any case be thoroughly documented – that is versioned.