PROCESS CHARTING SOFTWARE
Dr. Ben S. Graham, Jr.
President
© Copyright 1996, The Ben Graham Corporation. All rights reserved.
The Basics of Process
Charting
Before we begin a process charting effort it is important to determine
the purpose of our charts. If
our objective is to plan without getting into detail we can use various
methods of block diagramming. These
techniques (referred to from time to time as diagramming, or charting,
or mapping) use various shapes to record a general description of the
logic that accompanies a work process.
Need for Detail,
Rigorously Organized
However, when we want to turn our plans into action we need
rigorously organized detail. It
is one thing to dream about a new building.
It is quite another to build it and before we order materials and
pour concrete we help ourselves immensely by preparing engineering
drawings. The same is true
with manufacturing. For
thousands of years manufacturing was accomplished by scraping, pounding
and fitting but modern manufacturing gets enormous advantage by
carefully drawing every part and every sub-assembly of the product
first. Similarly,
information processes are notorious for misunderstanding,
counterproductive effort and muddling through.
The time has arrived for rigorous detailed organization of
business processes.
This
is best done at the operating level by people who are knowledgeable
about the details of the work. When
managers attempt to redesign work processes they are limited to
superficial information. If
they seek help from outside consultants they simply move farther away
from the detailed reality of the work.
It is no wonder that they find themselves using charting
techniques that are built of generalities.
This is what they have at their disposal.
But, it is not sufficient for workflow improvement and it
certainly does not deserve a title that includes the word engineering.
(Much of what has masqueraded under the misnomer of reengineering
in recent years is little more than reguessing being done by the same
managers and consultants who have done it many times before.)
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DO
YOU WANT TO TALK
TO THE ONE IN CHARGE
OR TO THE ONE WHO KNOWS
WHAT'S GOING ON? |
This
phrase speaks an eternal truth. In
recent years increasing numbers of leaders have come to understand and
accept this truth. And,
they have found that when they seek to utilize the experience
of their people (their most valuable resource) they find their people
responding with ingenuity and integrity.
A Comparison of Charting
levels
The figures following, (Figure 1 and Figure 2) compare a block
diagram composed of boxes containing general descriptions connected by
arrows with a detailed Graham Process Chart (greatly reduced to fit on
this page. To be readable
it would have to be at least two or three times the size and to be used
by a team it ought to be about five feet long.).
Both charts display a receiving process.
Obviously the Graham Process Chart is much more detailed than the
block diagram.
Block
Diagram Chart
FIGURE
1
Graham
Process Chart, Greatly Reduced
FIGURE
2
The
simpler chart can appeal to people who do not want to take the time to get
into the detail. But, the
detail does not go away because we ignore it.
If we intend to engineer our process we definitely need the detail.
Here are some of the advantages that detailed process charts
provide for us.
The Chart Items
With Graham Charts each item that plays a part in the process appears as a
label followed by its own line along which appear the steps of its
processing. This avoids a
great deal of confusion and protects us against loose ends that have not
been thought through. Block
diagrams simply do not follow the flow of individual items.
(Items include records, reports, data bases, products, materials,
etc. Essentially they are the
subject matter of a process.)
Left to Right,
Straight Line, Horizontal
In the early years of preparing Graham type charts they were allowed
to wander in any direction. A
breakthroughs that led to our current ability to chart large, complex
processes was keeping the lines straight from left to right. Charts that wander make sequence hard to follow.
Also, the fact
that they are kept horizontal makes for ease of displaying them regardless
of their size. It is much
easier to read a chart that is three or four feet in length if it is
horizontal than if it is vertical. If
the chart gets larger yet, and many process charts run ten or twelve feet
in length, it is still easy to put them at eye level if they are
horizontal. If they are
vertical, displaying them in one piece becomes useless.
Cutting them and footnoting from one to the next destroys the
picture.
Chart Shows Actual
and Not Theoretical
What is recorded
is what actually happens, not what theoretically should happen.
The data is assembled empirically and the fact that each item has
its own line assures that the process will be thought through.
An open end of a line begs the question, what happens next.
Non-Value Added
Work is Apparent
Unfortunately,
when people think through a work process without dealing with individual
items they tend to focus on what seem to be the major actions.
These are invariably the value-added steps, the things that move
the process along to completion. Meanwhile,
real world processes usually have eight or ten non-value-added steps for
every one that adds value. Block
diagrams typically miss almost all of these.
People working
with charts that only display value-added steps can get pretty self
righteous about their value focus. However,
we do a much better job of actually eliminating or improving the
non-value-added steps when we address them.
For example, an actual case involved a process that included ten
minutes of value-added work that took nine days to process.
After automating the ten minutes of work it still took nine days to
process it. Later a proper
process study of the same flow eliminated almost ninety percent of the
processing time.
Consistent
knowledge of Location
The arrow symbol
appears every time there is a change of location and with it are words
that tell where the item has gone. Therefore
it is very simple for a person to determine location for every item
throughout all of the steps of a workflow.
All that is needed is to trace backwards from the step in question
to the last arrow. Since that
item hasn’t moved since then it is still where it landed at that time.
These arrows also make obvious, opportunities for streamlining the
process by reducing backtracking.
Document
Redundancy is Obvious
Where you display
the items, their redundancy becomes obvious.
This leads to reduction of the number of records required to
complete a transaction. Specific studies have reduced from as many as seventy-seven
records to four, from forty-two to one and often in the range of from
seven to one.
This keeps the
focus on reducing work, not reducing staff.
It is far healthier to reduce the work and keep the staff than vice
versa. By keeping the staff
the organization is able to grow, has capacity for further improvement and
develops proud enthusiastic employees.
How much better that is than drawing a simplistic chart, assuming
that the work can be done with reduced staff and winding up with a process
no better than, often worse than the one that was never really studied,
with staff short-handed and alienated and the most experienced employees
gone.
Process Quality
A great deal of
quality stems from proper attention to detail.
Not only is this shown on the Graham style charts, there is also a
symbol, the square representing inspection, that calls attention to each
time an item is checked to see if it is right.
Careful study of process charts sometimes reveals places where
inspections are not conducted that are costly omissions.
Meanwhile, they also reveal, sometimes in the same chart,
inspections that are completely redundant and unnecessary.
Records Storage
and Disposal
Because each item
in the process has its own line, the final disposition of each item
becomes apparent. This is a
major advantage when it comes to making decisions as to which records must
be retained and which can be disposed of.
Each item line that displays a record ends with symbols and
verbiage that identify disposition.
Detailed charts
Provide a Vehicle for Harnessing Detailed Experience
When detailed
charts are addressed by people who collectively possess many years of
firsthand experience, they have no difficulty recognizing how their
portions fit into the bigger picture.
Since, collectively, these people have experience covering the
entire chart, they have the appropriate knowledge to make informed
decisions about it. This is
worlds better than having people who never did the work imposing decisions
based on superficial information.
Also, we find a
by-product of improved cooperation from this effort.
As the team of people, from different areas, work together they
gain improved understandings of one another’s work.
This tends to overcome interdepartmental disagreements and
establish a forum for creating organizational rather than departmental
solutions.
People Whose
Experience Equips them for Work Improvement
The people who are
most ideally suited to improve work processes are the people who do the
work. In addition there are
people in various staff positions whose assignments put them “in the
trenches” with the operating people and are therefore in a good position
to support these efforts. Some
of those staff people are:
-
People in Forms Management
- because they must work at the level of data entries, they have
traditionally been more aware of the details of operations than most staff
people. Today they are in a
superb position to support electronic forms initiatives.
-
People in Records Management
- because the detailed work required to build and maintain effective
classification systems for records requires that they become highly
familiar with their organization’s information..
-
Industrial Engineers -
because their skills can supply the graphics and the cost and benefit
measurements needed by the teams.
-
Auditors and Inspectors -
can be very knowledgeable about details of operations and can assist
improvement activities effectively if they are able to maintain a focus of
support rather than surveillance in their work.
How to prepare
Charts using Graham Charting Software
Charts are drawn
using a mouse to place symbols on a charting screen.
The software draws horizontal lines between symbols automatically. These lines are interconnected by using multiple mouse licks.
Then, text is keyed in, attached to the labels and the symbols.
Symbols
The symbols have
been proving themselves in world-wide use throughout most of this century.
They provide a powerful set of categories for gathering information on a
process by assuring that the data is collected at an appropriate,
elemental level. Then after
the documentation is completed they provide powerful realism for the team
as they analyze the process. (See
figure 3)
“Do”
Origin Add to
Handle Move
Check Store
Destroy
FIGURE
3
Conventions
Since most
processes involve the flow of more than one entity we use standard ways
for displaying how the flows are interrelated.
Figure 4 is a portion of a Graham Process chart that displays the
conventional ways that we draw the lines to connect the symbols.
Brackets show separation and assembly of items.
Branching lines show different flows that follow decisions.
Vees and inverted vees show where information in one item is used
to do something to another item.
Graham Chart,
Displaying Conventions

FIGURE
4
Printing the Chart
Charts can be
printed at an almost unlimited range of scales on all types of printers.
Lasers and ink jets produce fine small charts while dot matrix
printers and plotters do a fine job for larger charts intended for use by
teams during improvement meetings.
How to modify your
chart
Once a chart is
drawn it can be revised by opening it up to include additional steps or by
removing steps and then closing it up.
Entire documents and groups of documents, regardless of how many
steps they include, can be moved simultaneously.
Portions of a chart can be deleted, copied or moved.
During editing, text always remains adjacent to the symbols it
describes, and connecting lines, both horizontal and vertical, simply
elongate or contract as portions of the chart are moved.
Inserting Columns
or Rows
Figures 5 and 6
show a chart being opened up by inserting columns.
Note that the horizontal item line stretches and text remains
positioned properly with the labels and symbols.
Inserting
Columns, Before
FIGURE
5
Inserting
Columns, After
FIGURE
6
Figures 7 and 8
show a chart being opened up by inserting rows.
It doesn’t matter how long a chart may be, the entire chart
spreads vertically and all of the effects crossing the inserted rows
simply stretch.
Inserting
Rows, Before
FIGURE
7
Inserting
Rows, After
FIGURE
8
Deleting Columns
or Rows
Deleting columns
and rows works just the opposite of inserting, with the added feature that
if removing either columns or rows will result in removing any significant
element of the chart (symbols, labels, etc.) a warning screen will appear,
giving the charter an option of going ahead with the deletion or canceling
it. This is especially
helpful on large charts where portions of the chart that are not currently
on-screen would be affected.
Moving an Item
This feature is
especially helpful when working with large charts.
The charter selects an item line, thus highlighting it.
Then by clicking on a different row the item moves to that row
while maintaining all connections with other rows.
If moving the item to the new row would conflict with other parts
of the chart the software will not accept the move.
(See Figures 9 and 10.)
Move
of a Correction, Before
FIGURE 9
Move
of a Correction, After
FIGURE
10
Working
with Blocks
Any rectangular portion of a chart can be selected as a block by
clicking on two opposite corners. The
portion thus selected highlights in blue. Then the charter can adapt the portion selected to a shape
that is not rectangular by selecting symbols or conventions that are
outside of the currently selected block and by unselecting symbols and
conventions that have been selected.
Once the block has been selected it can be cut, pasted, or printed.
When pasting, if the position chosen for pasting will conflict with
parts of the existing chart, the block will not paste and the specific
portion of the block that is in conflict highlights in red. (See Figures 11 through 14.)
Selecting
Block, First corner
FIGURE
11
Selecting
Block, Second Corner
FIGURE
12
Selected
Block, Highlighted
FIGURE
13
Unselecting
from Selected Block
FIGURE
14
Revising
Charts
These charting features make it possible to prepare charts easily and
to modify them in much the way a word processor enables a person to modify
a manuscript. You change only
the portion of the chart that you want to change and the software
automatically keeps the rest of the chart, retaining all connections.
This ability makes maintaining libraries of process charts very
doable.
Building and
Maintaining a Chart Library
Each time a chart is prepared the organization gets one chart closer
to having a full library of all of its processes in chart form.
As the charts accumulate it makes sense to organize them in
directories consistent with the corporate organization and establish a
repository to tend to their maintenance and distribution.
The directory structure shown in Figure 15 shows how it might
appear if we were working with the Billing Process in the Accounts
Receivable Procedure.
Process
Chart Library, Directory Structure
FIGURE
15
Directory
Structure
Note that there are two sub-directories and several charts in the
Accounts Receivable directory. The
charts are current/approved charts, and carry the extension gc3 (Graham
Chart, Version 3). The
“wip” (Work in Progress) directory contains charts that are being
worked on. The archive
directory contains previously approved charts that have been superseded.
Starting an
Improvement Project
When the billing project began a work simplification coordinator
checked the library for a current/approved chart.
If there was none, he built one from scratch.
However, if a current/approved chart existed the work
simplification coordinator copied it and rather than preparing a chart
from scratch, took the current chart through a walk-through and modified
it to reflect what was actually happening at that time.
This automatically produced a new chart.
The existing current/approved chart remains in the Accounts
Receivable directory while the new chart resides in the “wip”
directory.
Finishing and
Improvement Project
Throughout the project all modifications to this chart accumulate in
the “wip” directory. When
the team is ready to wrap up their project and present a proposal they use
the current/approved chart as their “As-is” chart and the last version
of their “wip” chart as their “To-be” chart.
The differences between these charts become their recommendations.
After their proposal the “To-be” chart is modified to match
what has been approved and it becomes the new current/approved chart and
the previous current/approved chart moves to the archive directory, taking
on an extension of the next consecutive number.
Summary
Well-managed charting software enables an organization to build a
library of processes in electronic form and maintain it much the way
industry has learned to document manufacturing with bills of materials and
drawings. The items on a
Graham Process Chart are the equivalent of the bill of materials and the
chart itself describes the process with detailed clarity akin to
mechanical drawing.
This
advancement makes work processes clearer and there is less muddling
through. Process libraries greatly improve the ability of an organization
to manage complex processes, reducing misunderstandings and enabling
operating people to be more effective masters of their work.
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