2168,1394,3562,562,4124,898,5022,816,5838,306,6144,356,6500,318,6818,158,6976,464,7440,224,7664,346,8010,524,8534,485,9019,359,9378,161,9539,1334,10873,1145,12018,468,12486,449,12935,258,13193,1319,14512,1284,15796,2216,18012,526,18538,1039,19577,758,20335,1385,21720,787,22507,413,22920,258,23178,1033,24211,583,24794,578,25372,592,25964,432,26396,352,26748,943,1586039878,-1143436278,27691,685,28376,323,28699,1238,29937,1095,31032,1088,32120,900,33020,551,33571,427,204913624,-1993062775,820720222,-1202667469,33998,339,34337,223,34560,330,34890,1055,35945,794,36739,616,37355,947,38302,359,38661,667,39328,365,39693,255,39948,597,40545,409,40954,380,41334,403,41737,444,42181,480,42661,236,42897,673,43570,470,44040,1638,45678,544,1354773248,1342183352,96790542,-1070340725,1620048,-1209528752,870681349,431509696,-401715200,-443873878,-1202667469,-1202716671,-1706033129,1332486552,834200971,43667456,-1955730944,1354773477,1342177976,1342183352,1814141082,-1192916145,-1706033146,1332489477,-1205934709,-1706029985,1801060422,-1070340725,4307024,1554512,563649104,-443854996,1342192056,-369098086,870681453,1119375552,397955072,-1734717440,-1957729247,440549,755341904,-443854996,207992862,4627024,-443847846,-1202667469,-1202716599,-1706033129,1332486552,-1205934709,-1706029973,1801060422,-1070340725,4962384,1554512,563649104,-443854996,1342179000,1814889882,518359887,518359887,2,518359887,82,518359887,,518359887,82,518359887,8359887,518359887,2,518359887,82,518359887,,518359887,8359887,18359887,359887,,518359887,2,518359887,882,518359887,82,518359887,82,518359887,518359887,2,518359887,2,518359887,2,518359887,2,518359887,518359887,82,518359887,2,518359887,2,518359887,,518359887,,518359887,,518359887,82,518359887,,518359887,,518359887,82,518359887,82,518359887,82,518359887,,518359887,518359887,518359887,82,518359887,,518359887,2,518359887,518359887,82,518359887,2,518359887,2,518359887,,518359887,,518359887,82,518359887,82,518359887,,518359887,2,518359887,518359887,882,518359887,882,518359887,82,518359887,518359887,2,518359887,882,518359887,882,518359887,82,518359887,82,518359887,882,518359887,882,518359887,882,518359887,82,518359887,,518359887, MAIN MENU
Choose selections from this menu, and all other SPC Profes-
sional menus, by pressing the appropriate function key.
Function keys are located on the left side of most
keyboards.
Description of Function Keys
F1 This is the key you pressed to display this window. F1
will always display the help section.
F2 Brings up the Data Entry Menu. From this menu you can
enter and edit data from the keyboard or from a file.
F3 Presents the Data Analysis Menu. From there you can
display charts and graphic analysis on your monitor.
F4 Displays the Data Print Menu. This allows you to direct
output of a file's data to your printer.
F5 The Print Charts Menu allows you to output charts to
your printer.
F6 Function keys without descriptions do nothing. These are
for future expansion.
F7 The File Maintenance section is used to perform such
functions as deleting, copying, or packing (removing
records marked for deletion) files.
F8 The Installation Menu is used to set the operation
parameters such as screen colors, and drive specs.
F9 This function key always opens a window which displays
the the SPC files in the present directory.
F10 Ends the SPC Professional program and returns you to
DOS.
DATA ENTRY MENU
This menu is used to access the data entry screens. The
following types of data may be entered:
F2 Variables data refers to measurement type data such as
inches, cm., degrees, etc.
F3 Attributes data refers to discrete data such as defects,
defectives etc.
F4 Pareto data is used to enter information for pareto
analysis. Data may be entered from the keyboard or
retrieved from attributes files.
F9 Dispalys a list of SPC files on the present directory.
F10 Return to Main Menu.
INSTALLATION MENU
F2 Use this option to change screen colors for menus and
windows. You can try various color combinations until
you find one that is the most pleasing. Changes can be
made permanent by pressing F8.
F3 You can change the resolution for which charts are
displayed and set the screen for either black and white
or color depending on the type of monitor you are using.
F4 Use this option to enter your company's name and
address. This information will be printed on charts and
data.
F5 You can change the headings for data input screens using
this option.
F7 This option allows you to change the drive and directory
on which SPC data files are located.
F8 Any changes made will be reflected in the present
session only. Press F8 to make changes permanent.
ENTER FILE NAME
The last file you were using is now displayed. To choose
this file press <ENTER>. To choose a new file, enter its
name. File names can be any combination of eight letters
or numbers. Do not start file names with a number.
The program automatically adds the extension ".SPC". Do not
attempt to change this extension.
Error Messages:
** Wrong type of file ** An attempt was made to use a file
written using a different type data. For example, files
containing variables data cannot be used to run p charts.
** Failure to read file ** A function which expects an
existing file cannot find the specified file on the present
path. For example, attempting to print data from a file
which is in a different directory results in this message.
ENTER PATH NAME
You can set the DOS path for any existing drive and direc-
tory. SPC Professional will search for SPC files on the
drive and directory specified. Valid path name examples:
B:
C:\SPCFILES
C:\SPCPRO\DEPT1
FILE INFORMATION
The first six entries on this screen are optional. You may
make an entry or leave them blank. Press Ctrl F6 at any
menu to change the screen prompts for these entries.
Use the arrow keys to move around the screen. PgDn will
bring up the next function. Press F10 to return to the
previous function.
NOTES
Notes may be attached to any sample. To view these notes,
press F3 while the cursor is anywhere within the group.
Notes may also be viewed while displaying charts.
To edit a note, place the cursor over the word to be edited
using he arrow keys and enter a new word or line.
GROUPS INCLUDED
Enter the first and last samples to be included in the
ananlysis.
Use the arrow keys to move around the screen.
Left and Right arrows position cursor under sample. The
number of the group chosen is displayed in the lower left
hand corner.
PgUp displays previous page of chart (if any).
PgDn displays next page of chart (if any).
F2 - Displays information concerning the group chosen.
F3 - Displays a note for the group if one exists.
F8 - Displays information about all the data in general.
F9 - Displays directory of SPC files.
F10 - Exit to menu.
COMPANY INFORMATION
Enter your company's name and address on these lines. This
information will be printed on all reports.
Use the arrow keys to move arround the screen.
Use F10 or PgDn to exit.
CHANGING BORDER
Press the down arrow to select the next color.
Press the up arrow to select the previous color.
Press <Enter> to set the color as it appears on the screen.
Changes will be in effect during the present session only.
To make your changes permenant, press F8 at the Installation
Menu.
NOMINAL
Enter the nominal dimension of the measured characteristic.
Enter this number as it appears on your prints or specifi-
cations. You must make an entry in this field. It is
required for performing Process Capability Studies.
Error Messages:
Nominal > Upper Spec. - The number entered is greater
than the upper specification.
Nominal < Lower Spec. - The number entered is less than
the lower specification.
LOWER SPECIFICATION LIMIT
Enter the lower specification. If your specification is
single sided, with no lower limit (ie. 0.140 in. +.010 -0),
enter the nominal. This field must be entered.
Error Messages:
Nominal < Lower Spec. - The nominal specification is
less than the lower specification.
Error Messages (cont.)
Nominal > Upper Spec. - The nominal is greater than the
upper specification.
UPPER SPECIFICATION LIMIT
Enter the upper specification. If your specification is
single sided, with no upper limit (ie. 0.140 in. -.010 +0),
enter the nominal. This field must be entered.
Error Messages:
Nominal > Upper Spec. - The upper specification is
lower than the nominal.
UNITS
Enter the unit of measure. This may be inches, feet, cm. or
any other unit of measure.
BASE
SPC Professional allows you to enter data in two different
formats. Data may be entered just as it would be written -
(1.234, -200, 300.56789). This is referred to as entering
"raw data". Much of measurement data you will encounter
will appear as a constant whole number followed by a series
of decimals. (eg. 1.312, 1.345, 1.234, 1.300, 1.444). To
enter the 1 and the decimal point for each sample would be
rather tedious. This can be avoided by using the Base,
Decimals Combination.
Entering raw data:
To enter raw data set both the base and decimals to 0.
Entering Decimals Only:
If your data consists of a constant base and a fixed
number of decimals, enter the base number at the Base
prompt and the number of decimal places at the Decimals
prompt. Then, only the decimal portion of the data will
be required when entering data.
The Base field can only be entered once for each file. The
base cannot be changed once you begin entering data.
Example: Specification Base Decimal
0.0125 +/- .0005 0 4
1.750 +/- .005 1 3
25.250 +/- .125 25 3
128 +/- 5 0 0
DECIMALS
SPC Professional allows you to enter data in two different
formats. Data may be entered just as it would be written.
(1.234, -200, 300.56789). This is referred to as entering
"raw data". Much of measurement data you will encounter
will appear as a constant whole number followed by a series
of decimals. ( 1.312, 1.345, 1.234, 1.300, 1.444 ). To
enter the 1 and the decimal point for each sample would be
rather tedious. This can be avoided by using the Base,
Decimals Combination.
Entering raw data:
To enter raw data set both the base and decimals to 0.
Entering Decimals Only:
If your data consists of a constant base and a fixed
number of decimals, enter the base number at the Base
prompt and the number of decimal places at the Decimals
prompt. Then, only the decimal portion of the data will
be required when entering data.
The Base and Decimal fields can be entered only once for
each file.
Example:
Specifications require a dimension of 2.410 +/- .010.
Enter 2 at the base prompt and 3 at the deciamls prompt. SAMPLE SIZE
Sample sizes of between one and ten are valid. If you
enter a sample size of one, SPC Professional will
assume that the data is for a moving average and moving
range chart. You will be prompted to enter the number of
samples to use in the calculation of the moving averages and
ranges (Moving Size). This value cannot be changed once you
begin entering data.
INTERVAL
Enter the interval, in minutes, between samples. If samples
are taken at regular intervals, SPC Professional will
automatically update the date and time of each sample based
on this interval. Enter 0 if samples are not taken at
regular intervals or you are not interested in labeling
samples with the time and date. The interval cannot be
altered once you begin entering data.
MOVING SIZE
If you entered a 1 at the Sample Size prompt, SPC
Professional will prompt you for a moving average size.
This is the number of groups to be used for calculating a
moving average and range chart.
DATE
Enter the date as mm/dd/yy. The slashes will be inserted by
the program. Precede single digit dates with a 0. For
example, Feb. 7, 1986 is entered as 02/07/86.
Automatic Time and Date updates.
SPC Professional will automatically update the time and date
stamps for variables and attributes samples.
Automatic Time and Date updates (Cont.)
The time and date must be entered for the first sample in
a file. Press <F2> to activate the auto update feature. The
time and date will be automatically incremented by the
number of minutes specified at the "Interval" prompt.
Pressing <F2> a second time will disable the auto update
feature.
Function Keys
The following function keys are active while entering
varibles and attributes data:
F1 - Help.
F2 - Auto toggle for time and date stamps.
F3 - Enter a note for the sample.
F4 - Print the present screen.
F5 - Delete the present group.
F6 - Insert a new group at the present position.
Function Keys (Cont.)
F7 - Toggles between constant and variable sample sizes
while entering attributes data.
F8 - Display information about the present file.
F9 - Display a directory of SPC files.
F10 - Return to the previous menu.
TIME
Enter the time as hh:mm. The colon will be inserted by
the program. Precede single digit times with a 0. For
example, 14:04.
Automatic Time and Date updates.
SPC Professional will automatically update the time and date
stamps for variables and attributes samples.
Automatic Time and Date updates (Cont.)
The time and date must be entered for the first sample in
a file. Press <F2> to activate the auto update feature. The
time and date will be automatically incremented by the
number of minutes specified at the "Interval" prompt.
Pressing <F2> a second time will disable the auto update
feature.
Function Keys
The following function keys are active while entering
varibles and attributes data:
F1 - Help.
F2 - Auto toggle for time and date stamps.
F3 - Enter a note for the sample.
F4 - Print the present screen.
F5 - Delete the present group.
F6 - Insert a new group at the present position.
Function Keys (Cont.)
F7 - Toggles between constant and variable sample sizes
while entering attributes data.
F8 - Display information about the present file.
F9 - Display a directory of SPC files.
F10 - Return to the previous menu.
ENTERING VARIABLES DATA
Entering Raw Data
If you set both the base and the number of decimal
places to 0, type in the measurement followed by
<ENTER>, (eg. 3.123 <ENTER>). The cursor will skip to
the next measurement in the sample. A total of nine
characters may be entered, including the decimal point
and minus sign if required.
Entering Adjusted Data
If the base and number of decimal points were set, you
need only enter the decimal portion of the measurement.
Do not enter the decimal point. You are not required to
press <ENTER> after each entry unless you answered <Y>
to the prompt "Will you be entering any negative
numbers", and you entering a positive number.
Changing an Entry Within a Group
You can use the BackSpace key to correct the present
entry. To correct another entry within the group, use
the up arrow and down arrow keys to locate the cursor
over measurement. Then enter the correct measurement.
You cannot exit out of an incomplete group using the
arrow keys. Pressing F10 within an incomplete group
aborts the function and the present group will not be
recorded.
Editing Data.
Use the four arrow keys to locate the cursor over the
data you wish to edit. Enter the corrected data just as
you would during data entry. PgUp will display the
previous page. PgDn displays the next page. The AUTO
toggle switch (F2) will be turned off while editing.
Function Keys
The following function keys are active while entering
varibles and attributes data:
F1 - Help.
F2 - Auto toggle for time and date stamps.
F3 - Enter a note for the sample.
F4 - Print the present screen.
F5 - Delete the present group.
F6 - Insert a new group at the present position.
Function Keys (Cont.)
F7 - Toggles between constant and variable sample sizes
while entering attributes data.
F8 - Display information about the present file.
F9 - Display a directory of SPC files.
F10 - Return to the previous menu.
PRINT DATA
Prints the data in existing SPC files. Make sure
your printer is turned on and the paper is set to the top
of the page. You may print the following types of data:
F2 Variables Data
F4 Attributes Data
You will be prompted to enter a file name. You must enter
an existing file. The data file you choose must conform to
the function you choose. To view the files in the present
directory press F9. To select the default file press
<ENTER>.
DATA ANALYSIS
Use this menu to analyze statistical data. The analysis
or control chart will be displayed on the monitor. You must
enter the name of an existing file for any of these func-
tions other than Pareto Analysis. The following types of
analysis may be performed:
F2 Charts for individuals, Xbar and R charts and analysis
of out of control conditions for variables data.
F3 Process capability study and histogram for variables.
F4 Charts for fraction defective (p), defectives (np),
defects (c), and defects per unit (u).
F5 Pareto Analysis may be performed using existing attri-
butes data or employing data entered from the keyboard.
You will be prompted to enter a file name. You must enter
an existing file for attributes and variables analysis. The
type of data in the file must conform to the analysis chos-
en. (You can't run a p chart using variables data.)
F9 - Dispaly the present directory of SPC files.
F10 - Return to Main Menu.
MEAN XBAR
This is also referred to as the grand mean. SPC
Professional allows the user to either enter this value or
have it calculated from the data. If you are using a
historical mean, enter the entire number (ie. 1.345), even
if you entered the data using only the decimals. Use the
down arrow to select the chart type. Use the right arrow to
enter R bar.
To calculate the grand mean using the data, enter 0 for the
Mean Xbar. SPC Professional will calculate the mean using
the data in all the groups in the file. To calculate the
mean based on specific groups, enter the first and last
groups to be used in the calculation at the "GROUPS
INCLUDED" prompt.
SCREEN ATTRIBUTES
To change your video screen attributes, locate the cursor
over you choice. Press <ENTER> to change the setting.
Press F10 to return to the Installation Menu. Initial
settings are designed to be used with a composite (Black and
White) monitor. The Color Monitor setting will work with
either a composite or RGB color monitor. It may also be used
with black and white moitors which emulate colors in shades
of gray (Such as the Compaq monitors).
Screen Resolution
This option controls the resolution of chart displays.
High resolution is preferred. Although the medium
resolution setting will display charts in color, you
will not have access to information windows in this
mode. Change this setting only if your monitor cannot
display high resolution graphics.
Monitor Type
This option controls the color output of the system.
If you are having difficulties reading window information
you can either change this option to Black & White or
change the color settings using option F2 of the Instal-
lation Menu.
Density
Density contols the number of points which will be
displayed on attributes and variables charts. High
Density will display twice as many points as the Low
density setting.
MEAN RANGE
This is also called R bar. SPC Professional allows the user
to either enter this value or have it calculated from the
data. If you are using a historical R-bar, enter the entire
number (ie. 1.345), even if you entered the data using only
the decimals. Use the down arrow to select the groups
included. Use the left arrow to enter the grand mean. F10
will return you to the menu. PgDn skips to the next
function.
To calculate R bar using the data, enter 0 for the Mean
Range. SPC Professional will calculate R bar using the data
in all the groups in the file. To calculate R bar based on
specific groups, enter the first and last groups to include
in the calculation at the "GROUPS INCLUDED" prompt.
CHART TYPE
You may choose between three different variable chart types.
To choose a chart type, position the cursor over your choice
using the arrow keys and press <ENTER>. The Chart for
Individuals is a scattgergram of all individual
measurements. These are compared to the Upper and Lower
Specification Limits.
CHART TYPE
You may choose between three different variable chart types.
To choose a chart type, position the cursor over your choice
using the arrow keys and press <ENTER>. This option displays
or prints Xbar and R charts.
CHART TYPE
You may choose between three different variable chart types.
To choose a chart type, position the cursor over your choice
using the arrow keys and press <ENTER>. This option displays
the Xbar chart and performs a series of tests on each group.
Control limits will be calculated using either the data in
the file or the means entered by the user.
The following test for control are performed:
1. Xbar is below the lower control limit or above the upper
control limit.
2. 2 out of 3 averages in a row greater than the grand mean
+ 2 standard deviations.
3. 2 out of 3 averages in a row less than the grand mean -
2 standard deviations.
4. 4 out 5 averages greater than the grand mean + 1
standard deviation.
Tests for control (cont.)
5. 4 out 5 averages less than the grand mean - 1 standard
deviation.
6. 8 averages in a row on the same side of the grand mean.
Results of these tests will be displayed on the chart. GROUPS INCLUDED
The starting group has two functions depending on whether
you are drawing charts on the screen or sending them to the
printer. (Check the upper right corner of your screen. If
if says "PRINTER OUTPUT", the charts will be printed).
Printed charts will only include those groups between the
Starting Group and Ending Group.
If you are calculating the control chart statistics based on
the data, SPC Professional will use only those groups
between the Starting Group and Ending Group for this
calculation.
GROUPS INCLUDED
The ending group has two functions depending on whether you
are drawing charts on the screen or sending them to the
printer. (Check the upper right corner of your screen. If
if says "PRINTER OUTPUT", the charts will be printed).
Printed charts will only include those groups between the
Starting Group and Ending Group.
If you are calculating control chart statistics based on
the data, SPC Professional will use only those groups
between the Starting Group and Ending Group for this
calculation.
CHART PRINTING MENU
This menu is used to output charts and graphs to the prin-
ter. Be sure that your printer is connected and turned on.
All charts are printed on 80 column paper (8 1/2 in.). You
will be asked to enter a file name. The file type specified
must correspond to the type of chart chosen.
MENU SELECTION TYPE OF DATA
F2 X, Xbar and R charts Variables
F3 Process Capability Variables
F4 p,np,c & u charts Attributes
F5 Pareto Analysis Pareto Data
SIGMA SOURCE
The standard deviation may be calculated using either the
individual data or estimated from the control chart. If the
data is from a normal distribution, these values will be
quite similar. As a general rule, estimate sigma from the
control chart when determining process capability and from
individuals when estimating the percent of the population
beyond the specification limits.
NUMBER OF CELLS
You may vary the number of cells between one and twenty.
The number of cells effects both the histogram and the Chi-
Square Goodness of Fit test for normality. Start with a
cell count of ten and view the histogram. Add or subtract
cells to obtain a more pleasing result before printing the
histogram.
NAVIGATION COMMANDS
Alt F2 - Enter Variables Data.
Alt F3 - Enter Attributes Data.
Alt F4 - Display Variables Charts.
Alt F5 - Display Attributes Charts.
Alt F6 - Display Pareto Analysis.
Alt F7 - Print Variables Charts.
Alt F8 - Print Attributes Charts.
Alt F9 - Print Pareto Analysis.
Alt F10- Display Process Capability and Histogram.
Ctrl F1 - Print Process Capability and Histogram.
Ctrl F2 - Print Variables Data.
Ctrl F3 - Print Attributes Data.
Ctrl F4 - Set Screen Attributes.
Ctrl F5 - Set Screen Colors.
Ctrl F6 - Set File Header Prompts.
Ctrl F7 - Change Present SPC Directory.
Ctrl F8 - Delete a File.
Ctrl F9 - Pack a File (Remove deleted samples).
Ctrl F10- Quit to DOS
These commands can be issued while in any menu. The
program will branch directly to the function requested.
Upon completion of the function the program will branch
back to the menu from which it was called.
FILE MAINTENANCE
F2 - Packing a file removes samples marked for deletion from
attributes and variables files.
F3 - Deletes an SPC file from the disk. USE WITH CAUTION.
F4 - Creates an ASCII file from the data in attributes and
variables files. ASCII files have the extension "TXT"
You are required to enter the name of an existing SPC file
for each of the above choices. The file must exist on the
present directory. Packing a file will remove all samples
which were marked with "*****" for deletion. ASCII files
consist of the data in text format. These files may be
imported to spread sheets and data base management systems.
CHART TYPE
To choose a chart type, place the cursor over the selection
and press enter. The entry will be highlighted to indicate
your choice. If you are drawing charts, the average value
will also be displayed below. Press the up or down arrows
to select an different type of chart.
DEFECT NAME
Many inspection schemes require you to list the type and
quantity of each type of defect found in the sample. Use
this entry to list the defect type or code. You will then
be able to enter the quantity of each defect during data
entry and analyze each type of defect individually or as a
group. This information can also be used to construct a
Pareto Analysis of defects. You may list up to ten
different defects for each file while in the data entry
mode.
A c chart or u chart may be constructed for a single defect
type while in the Draw Charts mode. To select the defect
you wish to chart, choose either the c or u chart under CHART
TYPE. (Press the left arrow to choose chart type.) Position
the cursor over the defect you wish to chart using the up
and down arrow keys. Press <ENTER> to select the defect.
The cursor will be placed over the Average for the selected
defect. You may either alter this average or have SPC
Professional calculate the average for you. Enter 0 for
automatic calculatin of the average.
You may also draw a c or u chart for all defects combined.
Choose either chart using the CHART TYPE option but do not
select a specific defect.
ENTERING DEFECTS
Enter the quantity of defects found for each type of defect.
If you choose either the c or u chart, the number of defects
will be summed and displayed above. If p or np charts were
selected, you must enter the total quantity defective in
the sample. (Since each defective may have more than one
defect, the sum of the defects may not equal the total
defectives.) Note that you will not be able to move the
cursor out of the last group while entering defects.
Function Keys
The following function keys are active while entering
defects:
F1 - Help.
F2 - Auto toggle for time and date stamps.
F3 - Enter a note for the sample.
F4 - Print the present screen.
F5 - Delete the present group.
F6 - Insert a new group at the present position.
Function Keys (Cont.)
F7 - Toggles between constant and variable sample sizes
while entering attributes data.
F8 - Display information about the present file.
F9 - Display a directory of SPC files.
F10 - Return to the previous menu.
SAMPLE SIZE
Enter the sample size for each sample for p, and u
charts. The sample size for c charts defaults to 1. F7
toggles between constant and variable sample size. If your
sample size does not change between samples, toggle F7 to
the "Const." mode. The cursor will skip over the sample
size until F7 is again toggled. Sample size for np charts
must remiain constant. On np charts, only enter the sample
size for the first sample. F7 will always be set to Const.
FUNCTION KEYS
The following function keys are active while entering
defects:
F1 - Help.
F2 - Auto toggle for time and date stamps.
F3 - Enter a note for the sample.
F4 - Print the present screen.
F5 - Delete the present group.
F6 - Insert a new group at the present position.
Function Keys (Cont.)
F7 - Toggles between constant and variable sample sizes
while entering attributes data.
F8 - Display information about the present file.
F9 - Display a directory of SPC files.
F10 - Return to the previous menu.
DEFECTS OR DEFECTIVES
Enter the total number of defectives for p or np charts.
If you are entering data for a c or u chart, and no defect
names are listed, enter the total number of defects.
If defect names were entered, the quantity of all defects
will be summed and displayed here.
Function Keys
The following function keys are active while entering
defects:
F1 - Help.
F2 - Auto toggle for time and date stamps.
F3 - Enter a note for the sample.
F4 - Print the present screen.
F5 - Delete the present group.
F6 - Insert a new group at the present position.
Function Keys (Cont.)
F7 - Toggles between constant and variable sample sizes
while entering attributes data.
F8 - Display information about the present file.
F9 - Display a directory of SPC files.
F10 - Return to the previous menu.
Average c or u for Defects
The average value for c or u (depending on the chart type
chosen) will be displayed for each defect. This value will
be zero if no chart has yet been run for that defect. You
may enter a historical average to be used for charting.
Altenatively, enter a zero to have the average calcualted
using existing data.
If you choose to have the average calculated on a subset of
all the samples, enter a zero and specify the first and last
groups to be used in the calculation at the GROUPS prompt.
AVERAGE VALUE
The average value for p, np, c or u (depending on the chart
type chosen) will be displayed. You may have the computer
calculate the average by entering 0. Alternatively, you may
enter a historical average.
You may choose to have the average calculated on a subset of
all the samples. To do so, specify the first and last
groups to use in the calculation at the GROUPS prompt.
ENTERING DATA
Enter a number. You may use the minus sign, digits 0 - 9,
and the decimal point. The plus sign is not needed before
positive numbers. Back spcace to correct errors. The
direction keys (Arrows, PgUp, PgDn) will not function once
you are past the first character. Press <ENTER> when done.
ENTERING DATA
Enter any combination of letters or numbers. Press <ENTER>
when done. Backspace to correct errors. The direction
keys (Arrows etc.) will not function past the first
character.
ENTERING DATA
Enter a whole number. A minus sign may precede the number.
A plus sign is not required before positive numbers.
Pressing <ENTER> may be required after each entry. Use the
backspace key to correct errors. The direction keys (arrows
etc.) will not function past the first character.
CHARTS FOR VARIABLES
Left and Right arrows position cursor under sample. The
number of the group chosen is displayed in the lower left
hand corner.
PgUp displays previous page of chart (if any).
PgDn displays next page of chart (if any).
F2 - Displays information concerning the group chosen.
F3 - Displays a note for the group if one exists.
F8 - Displays information about all the data in general.
F9 - Displays directory of SPC files.
F10 - Exit to menu.
Tests For Control:
1. Xbar is below the lower control limit or above the upper
control limit.
2. 2 out of 3 averages in a row greater than the grand mean
+ 2 standard deviations.
3. 2 out of 3 averages in a row less than the grand mean -
2 standard deviations.
4. 4 out 5 averages greater than the grand mean + 1
standard deviation.
Tests for control (cont.)
5. 4 out 5 averages less than the grand mean - 1 standard
deviation.
6. 8 averages in a row on the same side of the grand mean.
HISTOGRAM
The numbers on the left represent the number of observations
in the cell. Those on the right represent the percent of
the total observations. Two vertical lines are drawn which
represent the upper and lower specification limits.
A plot of the normal curve with a mean and standard deviation
equal to that of the sample is overlaid on the histogram.
Function Keys:
F2 - Displays the cell boundries, frequencies and rela-
tive frequencies for each cell.
F3 - The Process Capability Study displays the
statistics describing the inherent variability within
which the process operates.
F8 - Displays general file information.
F9 - Displays the directory of SPC files.
F10- Return to menu.
DATES INCLUDED
Enter the dates to be included in the study. If you are
entering Pareto data from the keyboard, these dates will
have no effect on the the data. If you choose to use
existing data in attributes files for the study, only those
samples that were taken between these two dates will be used
in the study.
Enter the date as mm/dd/yy. Preceed single digit dates with
a <0>, eg 02/07/86. The program will insert the slashes.
Use the arrow keys to move around the screen.
F4 - Prints the data.
F9 - Displays a directory of SPC files.
F10 - Return to menu.
SOURCE OF DATA
You have the choice of entering Pareto data manually or
use existing data in attribute files. Make your seclection
by placing the cursor over your choice using the arrow keys.
Press enter to make your selection.
Keyboard Entry:
If you choose this option you will be required to enter
a name, weight, and quantity for each defect to be
included in the study.
Attribute Files:
If you choose this option, SPC Professional will search
the present directory for all attribute files which have
defects listed. For each file you will be given the
choice of either including the file in the study or
ignoring it. All defects found between the Start Date
and End Date for these files will be incorporated in
the study.
Use the arrow keys to move around the screen.
F4 - Prints the data.
F9 - Displals a directory of SPC files.
F10 - Return to menu.
DEFECT
Keyboard Entry:
Enter a name or code for the defect.
Data from Attribute Files:
The name or code for a defect type, found in an attribute
file, is displayed.
Use the arrow keys to move around the screen.
F4 - Prints the data.
F9 - Displays a directory of SPC files.
F10 - Return to menu.
WEIGHT
You can give each defect a wighting factor. Several schemes
use a weighting factor based on the severity of defect. Eg:
Severity Weight
-------------- ---------
Minor Defect 1 Point
Major Defect 5 Points
Critical Defect 10 Points
Other schemes are based on the cost of repairing the defect.
Enter the weight as a whole number form 1 to 9999. Default
value is 1.
Use the arrow keys to move around the screen.
F4 - Prints the data.
F9 - Displays a directory of SPC files.
F10 - Return to menu.
QUANTITY OF DEFECTS
Keyboard Entry:
Enter the number of defects for each type of defect listed.
Data from Attribute Files:
The sum of all the defects found for each defect will be
displayed.
Use the arrow keys to move around the screen.
F4 - Prints the data.
F9 - Displays a directory of SPC files.
F10 - Return to menu.
ATTRIBUTE FILES
Answer <Y> if you want to include defects from the file now
displayed. All the defects found between the Start Date and
End Date from this file will be included in the study.
Answer <N> to skip the file.
PARETO ANALYSIS
This is a graphic display of Pareto data. The quantity of
defects found is displayed at the top. The percent of total
defects is at the bottom. Defects are listed from the most
significant to the least. Only those defects which, when
summed, account for 80% of all defects are listed.
Note: If weights are other than one, the quantity listed is
actually the quantity times the weight for each defect.
Function Keys:
F2 - Displays the data for each defect listed.
F9 - Displays the directory of all SPC files.
F10 - Return to Menu.
CHANGING COLORS
Press the down arrow to select the next foreground color.
Press the up arrow to select the previous foreground color.
Press PgDn to select next background color.
Press <Enter> to set the colors as they appear on the
screen.
Changes will be in effect during the present session only.
To make your changes permenant, press F8 at the Installation
Menu.
CHANGING COLORS
Use the left and right arrows to select the screen to
change.
The selected screen will be highlighted. Press <Enter> to
display the possible color selections.
Press F10 to return to the menu.
Changes will be in effect during the present session only.
To make your changes permenant, press F8 at the Installation
Menu.
ENTERING HEADER INFORMATION
This information is used as prompts for Attributes and
Variables data entry. You can change these by locating
the cursor over the desired prompt and entering a new
prompt. Use the arrow keys to move around the screen.
Changes will remain in place for the present session only
unless the save to disk option is used.
F10 - Returns you to the menu.
ATTRIBUTES FILE INFORMATION
This window displays general information about the present
attributes file. The directory and file name are listed fol-
lowed by the information you entered when the file was
initiated. Next is displayed information obtained from the
control chart. If no control chart has been run, these
values will be zero. Each defect type is also listed along
with its average values (both c and u).
VARIABLES FILE INFORMATION
This window displays general information about the present
variables file. The directory and file name are listed fol-
lowed by the information you entered when the file was
initiated. Next is displayed information obtained from the
control chart. If no control chart has been run, these
values will be zero. The display finishes with the number
of observations per sample and the total number of obser-
vations in the file.
VARIABLES SAMPLE INFORAMTION
You are viewing information concerning the sample pointed to
by the cursor.
Function Keys:
F3 - Displays a note.
F8 - Displays file information.
F9 - Displays directory of SPC files.
ATTRIBUTES SAMPLE INFORAMTION
You are viewing information concerning the sample pointed to
by the cursor. The following information is listed:
Sample number, time and date of the sample
The sample size
Either the quantity defective or the number of defects,
depending on the chart chosen.
The fraction defective (p), number defective (np),
defects (c), or defects per unit (u).
If defect types were specified they will also be listed
along with the quantity of each and either c or u depending
on the type chart chosen.
F3 - Displays a note.
F8 - Displays file information.
F9 - Displays directory of SPC files.
HISTOGRAM INFORMATION
The following data is listed for each cell:
Cell Number.
Lower Boundry of Cell - All data within the cell is
greater or equal to the lower boundary.
Cell Frequency - The cell count.
Relative Frequency - Proportion of the cell count to the
total count.
Cumulative Relative Frequency - The sum of the
relative freqencies of all cells, up to and including
the present cell.
PROCESS CAPABILITY STUDY
Mean - The average of all the observations in the study.
Sigma - The standard deviation of those observations. Sigma
may be calculated using individual measurements (Ind.) or
estimated using the control chart Range (Chart).
Skewness - A measure of the symmetry of a distribution. A
positive value indicates a tendency to tail to the right,
and a negative value indicates a left tendency.
Kurtosis - A measure of the shape of the distribution. A
positive value indicates longer tails than the normal
distribution. A negative value indicates shorter tails.
Chi Square - The Chi Square goodnes of fit statistic. Com-
pare this value to the upper tail of the Chi Square distri-
bution with c-3 degrees of freedom.
Probability - The critical level of the Chi Square
statistic. Compare this value with a predetermined alpha
risk (usually .05). A value less than alpha indicates a
non-normal distribution.
PerCent < LSL - The percent of the population that can be
expected to fall below the lower specification limit.
PerCent > USL - The percent of the population that can be
expected to fall above the upper specification limit.
Cpk - A measure of process capability. A number less than
1.0 indicates a process which is too wide when compared to
the specification limits.
Cp - Another measure of process capability. A number
less than 1.0 indicates a process which is too wide when
compared to the specification limits.
1/Cp - The inverse of Cp. A number > 1.0 indicates a
process which is to wide for the specification limits.
PARETO ANALYSIS
Defect - The name or code for the defect type.
Total - The quantity of defects found multiplied by the
the weight.
Cum-Tot - The cumulative total for all defects up to and
including the present defect.
Per-Cent - The percent of all defects multiplied by
their weights.
Cum-% - The cumulative percent for all defects up to and
including the present defect.
Only those defects which make up the first 80% the total are
listed. The remainer are grouped together under "All
