PREPARATION SYSTEM FOR ADDITIONAL PARTS SLIP

PURPOSE:To reduce the time and the labor of a person in charge by showing automatically the necessary addition and its quantity to the revised edition of production for the printed matters to which the contents of an additional parts file are outputted. CONSTITUTION:When the design revised edition information JSK is received from a host device 25, the contents of a reference table 19 are updated and therefore the table 19 is always kept in its latest state. While the production order information JSD received from the device 25 is added to a progress file 17 as a new code. In this case, a production command number is automatically added to the record based on the diagram number designated by the information JSD. Then the production order diagram registered newly into the file 17 is collated with a diagram number of the table 19. In the case the coincidence is obtained between both diagram numbers, the present revised edition is collated with the updated revised edition. As a result, the additional quantity is calculated from an equation I for the parts specifications where the present revised edition is larger than the updated revised edition in terms of the using frequency. Thus it is possible to obtain an additional parts record where the result of calculation is written into the additional quantity item of an additional parts file 18.