A Typical Job; Correction Of Operator Errors - IBM 3270 Operator's Manual

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Operating the 3270
A Typical Job
Correction of
Operator Errors
For a better idea of the type of work you'll be doing on your
display station, let's look over the shou Ider of an experienced
3270 operator performing a typical job. After being assigned a
job and receiving the source documents, the first thing the
operator does is contact the computer when ready to begin
working. To accomplish this, many organizations have sign-on
procedu res. At these locations, the computer normally ignores all
signals or interruptions from a display station that is not signed
on. A sign-on procedure is simply a method of informing the
program that an operator will be working on the display station
being signed on. It usually consists of the operator keying in a
personal identification code and job number. Your supervisor
will tell you what action you must take and what your
organization's procedures are.
When ready to begin working, the operator signals the program
again, probably with one of the Program Access keys. A
formatted display appears on the screen, and the operator begins
to key data from the source document.
As you can see, the operator mispelled the word being typed.
(Even experienced operators make mistakes.)
You noticed that, having realized the mistake, the operator
corrected it immediately. The cursor was moved back to the
incorrect letter (with the cursor control key). Then, the correct
letter was keyed, replacing the incorrect one on the screen. After
that, the cursor was moved back to where the operator had
stopped, and keying from the source document was resumed.
Misspelling words and accidentally keying the wrong letter are
the most common errors. They are also very easy to correct, and
you should have no problems with them.
After typing the whole record, our experienced operator
makes sure the SYSTEM AVAI LAB LE indicator is on, and
presses ENTER. The ENTER key tells the program that data
from the display station is ready to be entered into the
computer.
If there are no equipment errors in transferring the informa-
tion from the display station to the computer, the data the
operator has just typed (in the input fields) disappears from the