The steps involved in making a new or amended file definition operational can be visualized as:
 
                                             __________
1. Select the option to make a new or       |          |
   amended file definition operational      |  FILE    |
   from the file control menu.              | CONTROL  |
                                            |  MENU    |
                                            |__________|
                                                 |
                                             ___|____
2. Select the file definition that is to    |          |
   be made operational. This is usually     |  SELECT  |
   a file definition that has just been     |   FILE   |
   created or changed.                      |DEFINITION|
                                            |__________|
                                                 |
                                                 |
3. Specify details of the batch job that     ___|____
   is to be submitted to make the new       |          |
   or amended file definition operational.  |  SUBMIT  |
                                            |"MAKE OP" |
                                            |   JOB    |
                                            |__________|