NMMSS, NMMSS Utility, Data Base Maintenance and Update

1 - Description of problem or function: Three basic programs in the Nuclear Materials Management and Safeguards System (NMMSS) for processing incoming transaction data and maintaining the current transaction data file are: TJEDIT, TJUPDT, and COMPAT. TJEDIT prepares, verifies, and maintains the integrity of data as it is introduced into the data base. TJUPDT maintains the current transaction data file on a daily basis. COMPAT maintains consistency between related data sets on the transaction data master file. 2 - Method of solution: TJEDIT examines input data and, depending on data specifications, accepts or rejects it, passing the accepted data to the TJUPDT program, and producing reports on all data submitted and data found to be in error. TJUPDT edits incoming data sets in relation to those already on the master file and rejects any invalid updating attempts. Data sets that pass the editing phase cause new data to be added to the master file, and existing data sets to be deleted or replaced depending upon the updating action indicated in the data. COMPAT examines all combinations of data sets within each transfer series and transfer number, suspends those that are incompatible from the file, and produces an error report when necessary. 3 - Restrictions on the complexity of the problem: No specific limits are imposed on the number of data sets that can be processed in any given execution since only those sets within a given transfer series and transfer number are stored simultaneously