112 APPLYING EFFICIENCY PEINCIPLES
classified that the time study relating to any operation
on any part can be readily found when wanted.
109. At the time the schedule shown in Table 3 was
made out, the work of symbolizing had not advanced
very far. The schedule is shown in this form, because
it ought to be got into use as an aid to planning
without waiting for the development of a complete
symbol system. Of course, operations, parts, partial
and full assemblies, and machines ought to be denoted
by definite symbols as soon as they can be worked out
without taking time from other things of more importance.
A sufficient reason for this is that the names
which grow up naturally for operations and parts are
not uniform even in different parts of the same plant.
Consequently, orders given in terms of those names
have not such clearly defined meaning as is to be desired.
110. Under'' Slides,'' operation'' Taking out cauls,''
the standard times are marked "doubtful." This
means that the times given may be used in planning,
but must not be used as a basis for the payment of
efficiency reward until they have been confirmed. Such
jobs will be paid straight time rates only, until standard
time has been reliably determined.
Under "Slide Veneers," operation "Cutting Off,"
no standard time is given, as it is represented as not
yet determined. If a schedule is otherwise ready to go
into use in planning, a few gaps in the standard time
column should not be allowed to delay its use. Such
gaps may be filled in, when occasion arises, by the foreman's
guess at the time required, if no better information
is available, rather than to allow a long delay in
getting the benefit of the parts of the schedule already
determined.
