| STEP |
WHO
|
WHEN
|
INFO TO
USE
|
WHAT TO
DO
|
RESULTS
|
| 1 |
Any team
member |
Upon having an idea for
using statistical techniques |
Own ideas or
research |
Make suggestion to QA
Manager regarding possible expanded use of
statistical techniques |
Suggestion to QA
Manager |
| 2 |
QA
Manager |
Upon receiving suggestion
(or having own idea) for using statistical
techniques |
Suggestion; own ideas or
research |
Review idea and consider
how the company's quality program, etc., might
benefit; discuss as needed with suggester, others in
company or outside authorities in
area |
Decision to pursue or
abandon idea |
| 3 |
QA Manager possibly with
others |
Upon deciding to pursue
new implementation of statistical
techniques |
Suggestion; own ideas or
research |
Develop and implement a
system to apply the technique |
New technique in
use |
| 4 |
QA
Manager |
After new technique has
been utilized long enough to review
effectiveness |
Results of
technique |
Review the effectiveness
of the new technique; determine if or possibly with
what changes to continue using the
technique |
If decide to discontinue,
do so; if decide to continue system with
modifications, go back to step 3; if decide to
permanently continue system, go to step
5 |
| 5 |
QA
Manager |
Upon deciding to make
statistical technique part of quality
system |
Details of how technique
is used |
Modify this TOP - SEE
TOP-TOPSM to add
technique to list below |
Updated List of
Statistical Techniques (below) |
|
FOR SAMPLING PROCEDURES USE ANSI/ASQL E1.4,
Latest Revision
LIST OF STATISTICAL
TECHNIQUES
-------------------------------------
|
|
6
|
Any
manager |
As wish to perform any ad
hoc analysis |
All available data,
knowledge of statistics |
Use manual techniques, or
computerized spreadsheet or graphics software to
perform one-time analysis; for repetitive use of such
techniques, see step 1 above |
One time ad hoc
analysis |
|
7
|
QC
Inspector |
As inspect forging jobs
requiring run chart per SPC (seeTOP-QCTRL) |
Dimensional
readings |
Chart the dimensional
readings on red-yellow-green run chart; as readings
go into the yellow range they are to be reported
per TOP-QCTRL, as is every reading in
the red range |
Run charts for forging
jobs |
|
8
|
QA
Manager |
For forging jobs requiring
capability analysis or for internal capability
analysis |
Dimensional
readings |
Enter the dimensional
readings from the run chart into the "SPC"
software on the QA Manager's personal computer to
run a histogram of the distribution of readings and
to calculate process capability: the ratio of the
dimensional tolerance range to the readings'
natural process limits (mean +/- 3 standard
deviations) a CAR is to be issued, per
TOP-CARRR, for any
capability less than that required by customer
specification or, if none, the level deemed
appropriate for the job by the QA Manager (typically
1.6) |
Capability analysis for
forging jobs |
|
9
|
Machining Department QC
Leadman |
For machining jobs
requiring x-bar-r charting or capability
analysis |
Dimensional
readings |
Input the dimensional
readings into the electronic data analyzer; at the
end of the run, or as deemed necessary, run x-bar-r
charts and a histogram of the distribution of
readings; if capability analysis is indicated, it is
calculated as the ratio of the dimensional tolerance
range to the process limits (mean +/- 3 standard
deviations); a CAR is to be issued, per TOP-CARRR, for any capability
less than that required by customer specification or,
if none, the level deemed appropriate for the job by
the Machining Division Manager (typically
1.6) |
Run charts and capability
analysis for machining jobs |
|
10
|
QA Manager or other
manager |
As deemed
appropriate |
Run charts, final
inspection memos, etc. |
Do ad hoc analyses of data
using spreadsheet or statistical software on personal
computer to reduce data for particular problems or
improvement projects; report trends or problems so
identified to QA Manager |
Statistical/graphical
analyses as QA Manager or other manager sees
need |
|
11
|
Management Review
Committee (typically via Audit
Manager.) |
Typically
annually |
Customer complaints;
Corrective Action Reports |
Use spreadsheet to
categorize, summarize and graph (bar, pie or other as
requested by Committee) customer complaints and
CARs |
Summaries of customer
complaints and CARs for management
review |
