2.3. How to define a tier type

ELAN supports the following options:

2.3.1. Adding new tier types

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 Section 2.4.1), and for all tiers belonging to one tier type it is given in the Add type window (this section), i.e.:

  • Add tier attributes window: specify the parent tier of the individual tier.

  • Add type window: specify the stereotypical constraints of tiers belonging to one type.

To create a tier type, do the following:

  1. Click on the Type > Add new tier type... menu. The Add Type dialog window appears:

    Add a tier type

    Figure 2.6. Add a tier type

  2. Enter the following information for the new type:

    1. Go to Type name. Enter the name or label for the type.

    2. Go to Stereotype. Select the stereotypical constraint that apply to the tiers based on this type (see Section 2.1).

    3. Optionally go to Use Controlled Vocabulary. Select a controlled vocabulary or leave this to None (see Section 2.6.7).

    4. Optionally go to Lexicon Connection. Click the + button to select a lexicon and a lexicon entry field to be associated with this tier type (see Section 2.7, Section 2.7.2 and Section 3.5.3).

    5. Optionally go to ISO Data Category to associate this type with a data category via the + button (see Section 2.3.5.

    6. The Time-alignable checkbox cannot be edited, its value depends on and changes with the selected Stereotype.

  3. Click Add to save the settings; otherwise click Close to exit the window without saving them.