4. 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.