The domain is used to define the type of value to be assigned to a characteristic or an object attribute of the dictionary.

The domain can be:

• Identifier: Generally reserved for technical identifiers of standard attributes.
• Code: A maximum of 20 characters of text in upper case and without any special characters, generally for an attribute linked to an entity.
• Code search: Code in a search form.
• Name: A maximum of 60 characters of text.
• Comment: For long text, maximum of 4000 characters displayed on several lines.
• Short comment: A maximum of 250 characters of text.
• Alphanumeric: Free text, generally a maximum of 255 characters.
• Duration: For a duration, as default in the format of hh:mm.
• Date, Date and time, Time: Date with or without the time, or time. A calendar will be presented to entry.
  Date and date-time fields are used for events scheduled by the user, such as work order start date and time.
• Instant: Instants are used for events dated by the computer (past and present). The moment at which an event, such as the change of status of an order, occurs.
• Amount: For prices (the reference currency symbol is displayed).
• Numeric: Any number.
• Boolean: True or false value. Automatically represented with a check box.

In order for the check box to offer only two states, checked and unchecked (and not the "indifferent" state), the attribute must be indicated as required.

• Rate: For a percentage.
• Quantity: For numbers indicating quantities.
• Multiple values: For search criteria with multiple selections.