The 1:1 levels are directly assigned to the form levels. They have a unique and direct relationship (1:1) to their affiliated form level. Typical examples for 1:1 levels are the long texts (explanatory texts) for each of the entities. A 1:1 level is dependent on the form levels to which it is assigned since the selection criteria for access to the database are in the data already imported for the superordinate form level. Form levels and 1:1 levels represent a logical or business entity.
The name of a 1:1 level and the DDIC structure below it is defined in the corresponding form class and cannot be changed.