Screens are made up of different units, so-called 'schemata'. Each schema contains a number of boxes into which the actual information is entered. These are called 'fields', e.g.:

Figure 1.61. Schemata and fields

1. Schemata

2. Fields

Most of the fields are more or less standardized^[1]. The following symbols and options are available:

	'closed controlled vocabulary'	You can enter only one value, and this value must be selected from the pull-down menu.
	'closed controlled vocabulary list'	You can enter more than one value (separated by commas), but all values must be selected from the pull-down menu.
	'open controlled vocabulary'	You can select one value. You can either select this value from the pull-down menu or type in an alternative value.
	'open controlled vocabulary list'	You enter more than one value (separated by commas). You can either select these values from the pull-down menu or type in alternative values.

In all four cases above, you can choose a value directly from the pull-down menu. Alternatively, you can start typing, in which case the pull-down menu will automatically open to display the available values.

'constrained format'

The value must be entered in a certain format (e.g., a date must be entered in the format YYYY-MM-DD). As soon as you start typing, the format is displayed in the field (highlighted in blue color). Please type over this format.

For all fields, there are tool-tips available. Point with the mouse to the label of the metadata category and leave it there for one second. The tool-tip appears, giving you information about this category, e.g.:

Figure 1.62. Tooltip

1. Point with the mouse to the category label and leave it there for one second.

2. The tool-tip appears.

In addition to these standardized fields, the IMDI Editor allows for the possibility to enter project-specific information. Such information is entered into a Keys schema (see Section A.2 on instructions of how to fill in a Keys schema), e.g.:

Figure 1.63. Project specific data

Project-specific keywords for the actor J

	Note
	It is possible to use (project-specific) controlled vocabularies in a Keys schema, i.e., to have a Keys schema display a pull-down menu containing predefined values. See Section A.2 for details.

In addition to the standardized fields and the keyword fields, there are Descriptions schemata (see Section A.1 on instructions of how to fill in a Descriptions schema). Such a schema contains a prose description that could serve as a reminder (to you or others) of the circumstances of data collection.