given a characteristic plate symbol based on the conventions
described by J.S.Keates (Cartographic Design and Production, John
Wiley & Sons, 1989).
By these conventions, the upper left corner of the icon indicates
whether the plate is "right reading" (emulsion up) or "wrong
reading" (emulsion down). The upper right corner indicates
whether the plate is a positive (white) or negative (black) image.
The lower left corner indicates the type of image on the plate:
line, text, open window or composite. The lower right corner
is occasionally used to indicate the type of material used or the
process required to create the image.
The combination of plate symbol and number made a unique
icon for each plate that could possibly exist within the color
separation packet. The use of these plate icons eliminated a lot
of text which would otherwise be necessary in forming the
production flowcharts.
2.4 The Production Flowcharts
Next, production flowcharts were constructed to demonstrate
the relationship between plates and the photo-reproduction
processes. Arrow placement was complicated by the fact that
many plates, once created, were needed for displacement
reference during the creation of other plates. The complete
procedure for the color separation of the five-color 1:50,000
series had to be divided into multiple flowcharts as shown.
1-007 Topographic Ape:
Color Separation Flowchart 1
From STARTto LIFE PROOP
Figure 6--Color Separation Flowchart (part 1)
1350,000 Zopograp&iz Maps
Color Separation Flowchart 2
TYPE STICKUP und MASKS rm 4Oc8
X
1 X$2-(33
C x
> 10 Xs 39 55 P5
Figure 8--Color Separation Flowchart Detail
Computer-generated labels with a complete set of plate icons
for each map were then created so the technician could
positively identify which plate corresponded to his or her
procedure in the flowchart.
Specific procedures in the flowchart are given numbers for
convenience in work order processing and production tracking.
For example, the several scribing related tasks are numbered
S1, S2, S3 and so on. Although Keats describes variations on
arrows to indicate different processes, we chose to keep the
arrows simple and let the procedure numbers represent the
procedure type.
2.5 The Standard Operating Procedure
The conceptual design of the Standard Operating Procedure
(SOP) was to take a blow-up of each link in the Color
Separation Flowchart and list the steps required to complete
production. In this example, procedure S1 (Scribing
Projection) is shown in enlargement against the background of
the larger flowchart to show its context. Then a list of steps is
described in English. Eventually, each SOP sheet required
translation to Arabic to be useful on the production floor.
150,000 Topagraphic Maps
Standard Operating Procedure Si ET
SCRIBE PROJECTION
1) Register New Scribe to Projection Plot
Place plot with image-side down.
ce en ae cost with emulsion yp.
egister with pin Strip.
rob rg iid
2) Engrave Neatline
Use large steel straight edge.
Use swivel steel blade scriber.
Hold blade angle mith thumb while Scribing.
3) Engrave Gradicule
Use large steel straight edge.
Match equal gradicule aa opposite sides of neatline.
Scribe projection out.
Scribe ticks a little long.
Trim back to siz with correction Raid.
Figure 7--Color Separation Flowchart (part 2)
178
Figure 9--SOP Page for Procedure S1
2.6
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