IBM 1130 User Manual page 434

PREPARING FOR CONVERSION
After making up conversion schedules and choosing
techniques, you should be able to see what must be
done to prepare for the actual conversion. Ask
yourself these questions:
1. Is the old system documented accurately and
completely? (See Section 10.) If it isn't, a smooth
conversion will be difficult.
2. Can the controls of the two systems be com-
pared? If not, it will be difficult to compare the
two systems. The new system should have the same
controls as the old, and you may even want to add
controls to the old system to ease conversion.
Section Subsections
Page
40 20
I
00
Such controls as grand totals, subtotals, document
counts, etc., will bring quick attention to discrep-
ancies between the two systems.
01
3. Is everyone who is involved in the conversion
familiar with both the old and new systems? Mis-
understandings regarding the differences between the
old and new can seriously interfere with and delay
the successful completion of even the best planned
conversion effort. Communications should be main-
tained with the people involved during the entire
application design and program development phases.
A few weeks before the conversion period, all those
who will be involved indirectly or directly in pre-
paring input or using output from the new system
should be taught both systems, in general--and their
particular areas of responsibility, in detail.