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Statistical Process Control Chart Review

Reviews control charts for a characteristic to see whether the process is stable and capable, not merely in specification. Run at set intervals. Carried out by quality engineering. A process in specification but out of control will leave specification eventually.

KnowQualityReviewQUA-107
Completed by
Carried out by quality engineering
Raised
At the review interval, and after any trigger event

Summary

In short

  • A statistical process control chart review is a review used in KnowQuality that reviews control charts for a characteristic to see whether the process is stable and capable, not merely in specification. It is built against ISO 9001 cl.9.1 and forms part of the Statistical Process Control programme.
  • Run at set intervals. Carried out by quality engineering.
  • The template holds 50 fields across 6 sections.
  • Scoring is process capability, where high is good.
  • ISO 9001 is quality management systems. The international standard for consistently meeting customer and regulatory requirements. Certifiable.
  • It connects to the rest of the library: links Process control, Yield.

What it is

What it is

What is a statistical process control chart review?

A statistical process control chart review is a review used in KnowQuality that reviews control charts for a characteristic to see whether the process is stable and capable, not merely in specification. It is built against ISO 9001 cl.9.1 and forms part of the Statistical Process Control programme.

When is a statistical process control chart review completed?

A statistical process control chart review is completed at the review interval, and after any trigger event. Run at set intervals.

When to use it

When to use it, and when not to

This review is one step in a larger programme. Using it for work that belongs to a neighbouring template produces records that are hard to report on later.

Use it for

  • The event or activity this review covers has occurred, or is about to
  • The workspace is being set up, or the register needs an entry added or retired
  • You are running the Statistical Process Control programme and this is one of its steps
  • A linked record needs this one to exist: links process control, yield

Not for

  • Manufacturing First Article Inspection, which inspects the first part or pack off a setup against every specified characteristic before the run continues.
  • Statistical Process Capability Study, which establishes whether a process can consistently hold the tolerance it is asked to hold.
  • Gauge Repeatability and Reproducibility Study, which measures how much of the observed variation comes from the measurement system rather than the process.
  • Anything outside KnowQuality, which belongs in the workspace that owns that process

Standards

What it is built against

ISO 9001Quality management systems

The international standard for consistently meeting customer and regulatory requirements. Certifiable.

ISOInternational Organization for Standardization

A voluntary international standard. Widely adopted, often required by customers, and certifiable where a management system standard.

FAQ

Frequently asked questions

What is the statistical process control chart review template based on?+

It is built against ISO 9001 cl.9.1. ISO 9001 is quality management systems. The international standard for consistently meeting customer and regulatory requirements. Certifiable. ISO is international Organization for Standardization. A voluntary international standard. Widely adopted, often required by customers, and certifiable where a management system standard.

What sections does the statistical process control chart review contain?+

There are 6 sections: header, chart setup, signals, response to signals, capability, result. Together they hold 50 fields, 39 of which are required.

How many statistical process control chart review records should we have?+

This is a singleton. One record per workspace, set up once and maintained, rather than one per event. Other templates refer back to it.

Which programme does the statistical process control chart review belong to?+

It is part of Statistical Process Control. Processes judged in control before they are judged capable, with the gauge ruled out first.

How is a statistical process control chart review scored?+

Scoring is process capability. High is good. Scores exist to make the form tell you something, not to produce a percentage for its own sake.

Can the statistical process control chart review template be changed?+

Yes. Every field, option, score and conditional rule is editable, and the links to other templates come with it. Most teams install it as it is, run it for a cycle, then adjust.

The agents

What the agents do with it

The form is the easy part. Keeping it current, routing it to the right owner and holding the evidence together is the work that actually slips.

KnowQuality

Holds the statistical process control chart review library against your registers, routes each record to its owner, and keeps the evidence trail together.

Ella

Coordinates the crew, rolls completion and exceptions into one view, and holds every write for your approval before it touches a record.

This template lives in KnowQualityquality and food safety. HACCP, nonconformance, traceability, laboratory and customer complaints.

Sources

Sources

  • ISO 9001 — Quality management systems
  • ISO — International Organization for Standardization

KnowQuality

Also in Manufacturing Quality

5Browse the whole library
Inspection

Manufacturing First Article Inspection

Inspects the first part or pack off a setup against every specified characteristic before the run continues. Run at every setup and changeover. Completed by quality. Catching a setup error on part one costs one part.

Assessment

Statistical Process Capability Study

Establishes whether a process can consistently hold the tolerance it is asked to hold. Carried out on new processes and after change. Completed by quality engineering. A capability below target means the specification or the process must change, not the inspection frequency.

Record

Production Part Approval Record

Records the evidence pack that approves a part or product for series production, covering drawings, capability, measurement and samples. Raised before first shipment. Approved by quality with the customer where required. Common in automotive and increasingly requested elsewhere.

Record

Rework Instruction Record

Sets out how a specific batch is to be reworked, what checks apply and who authorised it. Raised per rework decision. Approved by quality. Rework carried out to a verbal instruction is the route by which allergens and foreign bodies re-enter product.

Review

Customer Specific Requirement Review

Reviews requirements a customer imposes beyond the standard specification, and whether the site can meet them. Carried out at onboarding and on contract change. Completed by technical with commercial. Requirements agreed by sales and never told to production are a recurring audit finding.

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