Connections between PDB and the DB system.

The reader should understund that no physical difference exists between the PDB and the DB system in DIRA2 except that the files are in different locations. This physical identity is one of the strong points of all the software structure. The user can execute the DIRA2 commands on all the catalogues on the public or personal Data Base in the same way. All the DIRA2 commands can insert the output data in the PDB.

Moving from PDB it is still possible to obtain output catalogues that form part of PDB in a cyclical process that allows successive elaboration.

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