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   The definition environment and graphical presentation of the relations is
   a valuable aid when setting a software project. It is possible, in fact,
   to verify, more rapidly, the consistency of what is defined in the Data
   Dictionary. In this environment you will be able to see all the relations
   that have been set, beginning with the relations set for the highlighted
   file. It is also possible to add, modify or delete relations, fields or
   indexes for the currently selected file.

   The above figure shows the graphical presentation environment for the
   relations. By using the arrow keys, you will be able to vertically scroll
   through the different relations present on screen, starting with the
   current file. The frame on the right side of the screen gets updated
   automatically and shows the details relative to the relation. The buttons
   found on the bottom of the screen are the following:

   1:N Relation            Inserts a new 1:N relation starting with the file
                           highlighted by the cursor.

   1:1 Relation            Inserts a new 1:1 relation starting with the file
                           highlighted by the cursor.

   N:1 Relation            Inserts a new N:1 (or lookup) relation starting
                           with the file highlighted by the cursor.

   Edit                    Displays an environment in which you can manage
                           the relational links and insert, modify or delete
                           the expression on the relational field of the
                           currently selected file.

   Fields                  Allows to manage (insertion, modification,
                           deletion, etc.) the fields of the file highlighted
                           by the cursor.

   Indexes                 Allows to manage (insertion, modification,
                           deletion) the indexes of the file highlighted by
                           the cursor.

   Transactions            Allows to set the transaction directives (group of
                           update operations made by the object on the
                           different files from the master) beginning with
                           the one that is highlighted by the cursor. For
                           more information consult the "Transactions"
                           paragraph of the Application Definition
                           chapter.

   Zoom                    Allows to expand or collapse the relation branch,
                           starting with the current file. This button can
                           only be activated on the relation branches that
                           starts with a file having a triangle displayed of
                           it. Pressing the Zoom button a second time on
                           a relation already opened will collapse the
                           branch. This button allows you to have a complete
                           and accurate view of the relations set, starting
                           from the currently selected file.

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