ELAN supports the following options:
Every tier is assigned to a tier type. The tier type specifies the stereotypical constraints (and, as a consequence, whether or not the tiers are time-alignable).
Information about the relationship between tiers is given in two different places: for each individual tier it is given in the Add tier dialog window (see Adding new tiers), and for all tiers belonging to one tier type it is given in the Add type window (this section), i.e.:
To create a tier type, do the following:
Do the following to change the attributes of an already existing tier type:
Associations with a Lexicon field or a ISO Data Category can be changed via their + button or removed by clicking their - button.
To delete a tier type, do the following:
Click on Edit menu.
You can only delete a tier type if it is not used by any of the tiers. If it is used, the following error message appears:
It is possible to import tier types from .eaf
or
.etf
files.
Click on Edit > Import types.... Here you can select a .eaf or .etf file by clicking on Browse. Select the file you want to use in the next window and click Select. Finally click Import to import the tier types from the selected file.
In ELAN it is possible to associate a tier type with a data category of the ISO Data
Category Repository (DCR). To do so click on Type in the ELAN
main menu and select Change Tier Type.... In the window that
now appears, click the Browse... button to the right of the
ISO Data Category
option. In the next window(Figure 2.10, “Local Data Category Selection”), select a category from the list
and click Apply to associate the selected data category to
the tier type.
More information about the ISO DCR and how to use it can be found in Data categories.