User Interface
Statit e-QC's integrated dashboard makes it
easy to identify the current status of operations
and processes. Each process or portion of a
process can be analyzed within a published report.
The Statit e-QC menu groups published reports
into categories and list each report group with
an icon that indicates its status: Red, Yellow
or Green.
Close-up View of the Statit e-QC Menu
The status indicator "rolls-up" and
reflects the worst status generated by all of
the individual analysis included in the report.
Click on a report name in the navigation menu
to display a list that shows the status of each
item in the report. Click on the report item
names to view the specific chart or analysis
for more detailed information.
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Statit e-QC can integrate a wide array of information
from a variety of sources to provide a centralized
application where users can go to access information
about their operations. From within Statit e-QC,
users can access information such as:
- Process Documentation
- Existing information within an Intranet
- CAD, Process Diagrams, Flow Charts, etc.
- ISO 9000 documents
- Specifications
- Existing Web Applications
Statit e-QC provides several ways for users
to access this information:
- Page displayed when Statit e-QC is first
run
- Page displayed when a user logs into Statit
e-QC
- Page displayed when user opens a folder
in the menu
- Page displayed when user selects a dynamic
report from the menu
- Links can be added to bars, data points
or texts on a graph
- Links can be added to the output from Statit
e-QC reports
With e-QC, you can integrate diagrams from
other sources and add "hotspots" (links)
to provide an intuitive way for users to access
the detailed information they need. When the
user clicks on a hotspot, an e-QC report can
be run to show a chart or analysis. Examples
include displaying SPC charts for measurements
from a part diagram, line or areas in a plant
or facility, or clicking part of a process diagram
and showing a Pareto for the number of defects
at that particular part of the process.
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Statit e-QC supports a wide flexibility of
output capabilities including:
- Multiple graphs per page
- Mixed graphics and text output
- Font and color control of all graph components
- Include text or HTML from a file and embed
it in the output
- Add HTML formatting to the output
- Customize the output page template to add
a company logo, navigation, links, etc.
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Users can launch desktop applications directly
from e-QC to further analyze the data they have
selected. The data can also be saved locally
to a file on the user's computer in a variety
of formats including, Excel, Statit, Minitab,
SAS and many others. This provides a way for
a wide range of users to access data from a
centralized server for further or additional
analysis without needing a database connection
on each computer. Statit e-QC output, such as
images and text reports, can also be saved to
a user's machine for inclusion into reports
and presentations. See Data
Files for a list of supported database formats.
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Statit e-QC can support an unlimited number
of login accounts. Each login allows restricted
access to specific areas or reports. When a
user logs into Statit e-QC, the navigation menu
displays only the areas or reports that the
user is authorized to access.
Each login is classified as one of the following
user levels:
- Viewers
Can view only the published reports
which they have permission to access.
Viewers do not require a Statit e-QC license.
Statit e-QC allows for unlimited access to
scheduled reports by Viewers.
- Users
Can run dynamic and published reports which
they have permission to access. Users
can also do the following tasks when working
with dynamic reports:
- Send output in an e-Mail message, and
optionally attach the underlying data
- View the data associated with the report
within the browser
- Launch an interactive Statit, Excel or
other desktop application on the computers,
with the data, for additional analysis
- Authors
Have the same capabilities as Users, with
the additional capability of being able to
develop and modify macros which they have
permission to access.
Automated
Reporting
A report can be scheduled to run at regular
intervals. Reports can be scheduled to
run frequently, as often as every 15 minutes,
run on certain days of the week or certain days
of the month. The Status of each report
is indicated on a
dashboard in the Statit e-QC menu.
Statit e-QC Report Scheduler
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A list of users can be automatically notified
by e-Mail when a Statit e-QC Report is published
or updated. A different set of users can
be notified only if a defined Alarm level for
the report is met or exceeded. e-Mail
can also be sent to the Author or Administrator
if the report generates certain errors, such
as not being able to access the database.
The e-Mail message can contain a link that
gives the recipient immediate access to the
report, without logging into Statit e-QC. The
e-Mail can be sent to a list of users and copied
to other users.
Statit e-QC e-Mail Alarm
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Data in Statit e-QC
One of the fundamental features of Statit e-QC
is its "open" approach to accessing
data.
Rather than dictate a specific data source
or implement a proprietary data storage mechanism,
Statit e-QC takes an open approach to accessing
data. Statit e-QC can access data from
any popular database as well as data files.
And Statit e-QC users can get data delivered
to their desktops in a variety of formats for
additional in-depth analysis or collaboration.
Databases
Statit e-QC can access any ODBC 3.0 compliant
data source using SQL. All major database
vendors have ODBC drivers for accessing data.
To access data, the proper ODBC driver is installed
on the same server where Statit e-QC is installed.
End-users who access Statit e-QC do not need
to have ODBC drivers installed.
Files
Data can be stored in a wide variety of file
formats. Files can be read and written to the
file system or to a URL location.
- ASCII Data
Files
Read and write free-format ASCII files and
files in a wide variety of fixed formats.
- Binary Data
Files
Support flexible format specification to read
and write binary formatted files .
- Industry Files
Read and write data in a wide variety of popular
file formats:
|
Spreadsheet /
Database
|
Desktop Analysis
Systems
|
|
Microsoft Excel (*.xls)
Microsoft Access (*.mdb)
Comma Separated Values (*.csv)
Lotus 1-2-3 (*.wk*)
QuattroPro (*.wq*, *.wb*)
dBase, FoxPro, Clipper (*.dbf)
Paradox (*.db)
|
SAS
(*.sd2, *.xpt)
SPSS (*.sav, *.por)
Stata (*.dta)
Systat (*.sys)
Matlab (*.mat)
Minitab (*.mtw)
Statistica (*.sta)
Jmp (*.jmp) |
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Statit e-QC provides a full range of data modification,
manipulation, and transformation capabilities,
including conditional transformations, subsets,
sorting and ranking.
Many built-in functions for arithmetic, mathematic,
statistical, and trigonometric transformations
are provided. String, date, and time manipulation
functions are also provided. Statit e-QC
can:
- Modify and compute new data items and variables
- Perform conditional computations based on
logical criteria, and can use the entire data
set or only a subset of data
- Change values, combine categories, or collapse
intervals
- Rank variable observations as well as lag
or lead over time periods
- Calculate moving averages and ranges
- Format data for display
- Convert data variables to other data types
Analytical Capabilities
|
Supported SPC Charts
|
| Variable
Data |
Attribute
Data |
X-Bar Chart
R Chart
s Chart
Median Chart
Individual Chart
Moving Range
Moving Average
Cumulative Sum
Process Capability Chart
Process Capability Analysis |
p Chart
np Chart
c Chart
u Chart
u-Type Cumulative Sum
Pareto
Paynter
Cumulative Sum
|
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Most of the variable and attribute control
charts offer these features:
- Data Table
Presents a list of items to display below
the chart. The choices include the underlying
data, plotted values, control limits, etc.
Other variables can also be specified.
- Data Tips
When the chart is viewed, the user can "mouse
over" a data point or "hot spot" on the chart
and pop-up window is displayed with additional
information. This information can include
underlying data, subgroups, rules and rule
violations, control limits and other user-specified
variables. Additional Data Tips can also be
easily added to the chart.
- Phases
Once a process has been identified as needing
improvement, the first step to improve that
process is to establish the initial process
"capability." Without doing this, there would
be now way to tell whether a change made in
the process results in an improvement. Statit's
Phase Analysis provides for a comparison between
the baseline process and new protocol (corrective
action) to ascertain statistically, whether
the new protocol is better, the same, or worse
than the baseline process. This action corresponds
to the "Study" step in Deming's Plan-Do-Study-Act
cycle.
- Assignable Cause
Points on the chart can be excluded from control
and warning limit calculations and rules testing.
This feature is often used to identify out-of-control
points, for which an assignable cause has
been found. A comment can be displayed on
the chart by the point.
- Annotation
Comments can be placed near any point on the
chart. These comments automatically follow
the point as it moves across the chart, when
more data is collected. For example, this
feature allows an operator to identify a point,
add comments or additional information and
save those comments back to the data source.
- Limits
There is a great deal of flexibility for displaying
Control, Warning and Spec limits, including
how they are computed, displayed and labeled.
- Subgroups
Subgroups can be identified either by the
constant subgroup size or by a categorical
variable, such as date and time or lot number.
- Text Reports
A text report can be requested which lists
the control limits, rules tested and violated,
and outliers.
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Statit e-QC supports a wide variety of statistical
capabilities including:
- Descriptive statistics, including univariate,
multi-way univariate, frequency distributions
and frequency tables
- One and two-sample inference
- Analysis of variance
- Correlation analysis
- Regression analysis
- Multivariate analysis
- Reliability and survival analysis
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Statit e-QC provides flexible methods for defining
and responding to alarms. Statit e-QC
allows alarms to be classified into four different
levels.
Statit e-QC Alarm Levels
|
Alarm State
|
Value |
| Red |
 |
Exceeded alarm value or
last point out-of-control
|
| Yellow |
 |
SPC rule violation or
between alarm and target value
|
| Green |
 |
No rule violations or
met target value
|
| Normal |
 |
No rule violations or
no target/alarm value set
|
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Statit e-QC provides users with the freedom
to define the Alarm State using SPC or Business
Rules Testing or as the result of a specified
expression or statistical calculation.
Using SPC Rules Testing
Statit e-QC comes standard with the AT&T/Western
Electric, Ford, Nelson and JCAHO rule sets for
SPC charts. Statit e-QC also allows modification
of existing rules sets and creation of new rule
sets.
Alarm conditions can be raised in a variety of
ways including:
- Last point out of control
- Any point out of control
- Specific rules violated
- Rules violated in last n samples
Using Expressions
Statit e-QC allows alarms to be defined as
a result of an expression or calculation. For
example, one way of measuring how well a process
is performing is to look at its CpK value.
Alarm levels could be divided up as shown below.
Statit e-QC Alarm Status
| Expression |
Status |
| CpK < 1.0 |
|
| CpK >= 1.0 and <
1.5 |
|
| CpK >= 1.5 |
|
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Visual
Notification
- Identify specific SPC rule violations by
placing an identifier next to the data point.
Statit e-QC does this automatically by displaying
a letter which indicates the rule violated.
If the user clicks on the letter, a description
of the rule is displayed as a Data Tip.
- Change the colors of the graph.
- Add a text message to the graph.
- Include customized HTML effects like banners,
blinking text and animated gifs.
Example of changing screen color and adding
text messages
e-Mail Notification
When Statit e-QC reports
are scheduled, users can be automatically notified
by e-mail when certain alarm conditions
are met or exceeded.
Example: email message received with link providing
direct access to report.
Other Alarm Handling
- Perform additional analysis and generate
additional charts automatically to help the
user identify the problem.
- Display instructions for handling the alarm
or identifying possible causes.
- Generate an output to file or database.
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System Level
Statit e-QC is easy to administer from within
a Web Browser. Administrators have additional
menu items available within Statit e-QC to:
- Manage login accounts including assigning
login names, passwords, user type and access.
- Manage report publishing including creating,
editing, scheduling and configuring e-mail
alarming for reports.
- Edit, move, delete and assign ownership
of reports.
- Statit e-QC Configuration Properties including
default graph sizes, default colors, Home
Page, Output Style Sheet, etc.
Statit e-QC Administrator's Menu
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See System
Requirements document
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- Each person accessing Statit e-QC requires
a login and password
- Users only have access to reports and analysis
within their authorized areas
- Statit e-QC output can be encrypted using
the capabilities of the web server
- Statit e-QC utilizes Cookies within the
Browser to maintain state information including
Login and Password information.
