The promotion process begins by executing the SELECTION/VERIFICATION PROCESSOR (program NDVRDSEL). Entities are selected to be migrated from the information contained in the CCDB Change Log, input selection criteria, and the IDD. As a result, only those entities, which have been actually modified in the source system since the last migration to the target system, are initially eligible. Criteria, which are used to select entities for promotion, include the target system identifier, CCIDs, users, status, date and time ranges, management group, or a combination thereof.
Using the entities selected from the CCDB as a starting point, the data dictionary is interrogated and relationships expanded to determine if any closely related entities were modified since their last migration to the target system. Closely related entities are migrated if they have been modified.
Upon selection, a machine-readable and user-editable candidate entity list and control file is created. This list is then used as input to other promotion support utilities. Entities in the candidate list are also optionally signed-out at selection time by the Verification Processor. This assures that no unintended changes will be made to the entities selected until the promotion process is completed.
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