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Plex Online provides a Statistical Process Control (SPC) subsystem. As part of the overall Quality Management System, the SPC
module provides the ability to collect inspection data and to conduct in-process Statistical Process Control.
It displays a variety
of charts on screen, such as Histogram, Average and Range, Run Chart, Individuals Chart and more. It also handles Capability Studies,
Dock Audits, Part Layouts, Final Inspection Sheets, PPAP Inspections, and Special user-defined checks. It performs all statistical
calculations such as standard deviation, Cpk, and Ppk.
The Plex Online SPC subsystem draws its power from the fact that it is highly
integrated with the rest of the quality and manufacturing system, including the Parts List, Process Routing, CAD Integration, Part
Specifications, FMEA, Control Plan, Process Flow Charts, Process Instructions, Checksheets, Inspection Data Collection, Control Panel
and Gage Control Modules.
Plex Online's SPC system is not designed to be a generalized or generic statistical analysis package. It is
designed specifically to provide the requirements of an automotive or aerospace manufacturer that needs to implement SPC in the most
beneficial, standards compliant, and cost effective way. The simple-to-use yet effective Plex Online SPC system has proven to be a powerful
and efficient tool for many manufacturers.
Features (Click [+] or [-] to expand/collapse a feature.)
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SPC 
This module provides the ability to collect in-process inspection data and to conduct Statistical Process Control. It also handles
Capability Studies, Dock Audits, Part Layouts, Final Inspection Sheets, PPAP Inspections, and Special user-defined checks. It performs
all statistical calculations such as standard deviation and Cpk and it prints a variety of charts, such as Histogram, Average and Range,
Run Chart, Individuals Chart and more. This system is highly integrated with the Part Specification, Control Plan, and Gage Control
Modules. SPC is generally a requirement of ISO/QS-9000.
As an alternative to traditional software, there are an increasing number of SPC systems available through the Internet. They range from
simple Control Charting utilities to comprehensive quality solutions. The Plex Online system integrates all aspects of managing quality,
including full continuity between the Part Characteristics, FMEA, Control Plan, Process Instructions, Inspection Checksheets, and SPC
Control Charting. Once the user sets up the Control Plan, the system uses that data to automatically create the Inspection Checksheets,
and drive Control Charts. This establishes a seamless link from the part characteristic, through the ISO quality documents, and to all
inspection data. The system also provides modules for Gage Control, Corrective Action, APQP Tracking, Supplier Quality Management, and
many other areas.
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