GPPQE study materials
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GPPQE key terms

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Quality Management System (QMS)

The coordinated set of policies, processes, responsibilities, and resources an organization uses to direct and control quality, typically documented in a manual and supporting procedures.

Related: Quality Policy, Process Approach, Document Control
Quality Policy

A short formal statement from top management declaring the organization's quality commitments and direction, providing a framework for setting measurable quality objectives.

Related: Quality Objective, Management Review, Quality Management System (QMS)
Quality Objective

A measurable target tied to product, service, or process performance that is consistent with the quality policy and assigned to a responsible function with a completion timeframe.

Related: Quality Policy, Key Performance Indicator (KPI)
Process Approach

Managing work as a system of interconnected processes, each with defined inputs, outputs, owners, and performance measures, so that interactions and risks are understood.

Related: Process Map, Turtle Diagram, Quality Management System (QMS)
Document Control

The practices that ensure documents are approved before use, available where needed, current, legible, and removed or marked when obsolete, preventing unintended use of superseded versions.

Related: Record Retention, Configuration Management, Quality Management System (QMS)
Record Retention

A defined schedule specifying which quality records are kept, for how long, in what medium, and who may access them, supporting traceability and evidence of conformity.

Related: Document Control, Traceability
Management Review

A planned top-management meeting that evaluates QMS performance inputs such as audit results, customer feedback, and process metrics, then decides on actions and resource changes.

Related: Quality Policy, Key Performance Indicator (KPI), Corrective Action
Audit Scope

A statement defining the boundaries of an audit, including the organizational units, processes, locations, and time period covered, and what is explicitly excluded.

Related: Audit Criteria, Audit Plan, Audit Evidence
Audit Criteria

The set of requirements, standards, procedures, or contractual obligations against which audit evidence is compared to determine conformity or nonconformity.

Related: Audit Scope, Audit Evidence, Nonconformity
Audit Evidence

Records, statements of fact, or other verifiable information collected during an audit that is relevant to the audit criteria and can be checked for accuracy.

Related: Audit Finding, Audit Criteria, Sampling Risk
Audit Finding

The result of evaluating collected evidence against audit criteria, classified as conforming, nonconforming, or an opportunity for improvement, with supporting detail.

Related: Nonconformity, Audit Evidence, Observation
Audit Plan

A document describing how an audit will be conducted, including objectives, scope, criteria, schedule, team assignments, and the processes to be sampled.

Related: Audit Scope, Audit Trail, Audit Sampling
Audit Trail

The documented sequence of activities, decisions, and records that allows an auditor to reconstruct how a process was performed and verify traceability from input to output.

Related: Traceability, Audit Evidence, Audit Plan
Opening Meeting

A short session at the start of an audit confirming scope, criteria, schedule, communication channels, and expectations, and giving the auditee a chance to raise concerns.

Related: Closing Meeting, Audit Plan
Closing Meeting

The final audit session where findings, nonconformities, and conclusions are presented to the auditee, and timelines for corrective action responses are agreed.

Related: Opening Meeting, Audit Finding, Corrective Action
Corrective Action

Action taken to eliminate the root cause of a detected nonconformity so that it does not recur, distinct from immediate containment or correction of the affected item.

Related: Root Cause Analysis, Containment Action, Preventive Action
Preventive Action

Action taken to eliminate the cause of a potential nonconformity before it occurs, based on risk analysis or trend data rather than an actual failure event.

Related: Corrective Action, Risk Assessment, Root Cause Analysis
Containment Action

Immediate steps to protect customers and downstream operations from a known problem, such as quarantining stock, sorting product, or adding a temporary inspection.

Related: Corrective Action, Nonconformity, Traceability
Root Cause Analysis

A structured investigation to identify the underlying system or process condition that allowed a problem to occur, using tools such as 5 Whys, fishbone diagrams, or fault trees.

Related: 5 Whys, Fishbone Diagram, Corrective Action
5 Whys

An iterative questioning technique that repeatedly asks why a problem occurred, typically five times, to move from symptoms toward an actionable underlying cause.

Related: Root Cause Analysis, Fishbone Diagram
Risk Assessment

The combined process of identifying hazards or failure possibilities, estimating likelihood and severity of harm, and deciding whether risk is acceptable or needs treatment.

Related: Risk-Based Thinking, FMEA, Risk Register
Risk-Based Thinking

A way of planning and controlling processes that weighs the probability and impact of failure, directing more rigor and resources to higher-risk areas.

Related: Risk Assessment, Risk Register, Sampling Risk
Risk Register

A living log listing identified risks, their assessed likelihood and severity, assigned owners, mitigation actions, and current status, reviewed at planned intervals.

Related: Risk Assessment, Risk-Based Thinking
FMEA

Failure Mode and Effects Analysis: a structured team method that lists potential failure modes, scores severity, occurrence, and detection, and prioritizes actions using a risk priority number or similar index.

Related: Risk Assessment, Control Plan, Pareto Analysis
Control Plan

A document specifying, for each process step, the product or process characteristics to control, the monitoring method, sample size and frequency, and the reaction plan when limits are exceeded.

Related: FMEA, Statistical Process Control (SPC), Process Validation
Statistical Process Control (SPC)

Using control charts and process capability measures to distinguish common-cause variation from special-cause events, so that adjustments are made only when the process signals instability.

Related: Control Chart, Process Capability, Common Cause Variation
Control Chart

A time-ordered plot of a process metric with statistically derived center and control limits, used to detect signals of special-cause variation such as runs, trends, or points beyond limits.

Related: Statistical Process Control (SPC), Common Cause Variation, Special Cause Variation
Common Cause Variation

Random, inherent variation produced by the ordinary design and operation of a stable process; it cannot be removed by reacting to individual points.

Related: Special Cause Variation, Control Chart, Process Capability
Special Cause Variation

Variation arising from an identifiable, non-routine event such as a bad lot, tool change, or operator error, signalled by control chart patterns and addressed through investigation.

Related: Common Cause Variation, Control Chart, Root Cause Analysis
Process Capability

A measure of how well a stable process's output fits within specification limits, expressed as indices such as Cp and Cpk that compare process spread and centering to tolerance.

Related: Statistical Process Control (SPC), Specification Limit, Gauge R&R
Gauge R&R

A repeatability and reproducibility study that quantifies measurement variation from equipment and appraisers relative to total and part variation, confirming a measurement system is fit for use.

Related: Measurement System Analysis (MSA), Process Capability
Measurement System Analysis (MSA)

A set of studies evaluating the error sources in a measurement system, including bias, linearity, stability, repeatability, and reproducibility, before data are trusted for decisions.

Related: Gauge R&R, Sampling Plan
Acceptance Sampling

Deciding whether to accept or reject a lot by inspecting a sample drawn from it, with risk of accepting bad lots and rejecting good lots determined by the chosen plan.

Related: Sampling Plan, AQL (Acceptable Quality Limit), Sampling Risk
AQL (Acceptable Quality Limit)

The quality level that is the worst tolerable process average when a continuing series of lots is submitted for acceptance sampling under a given plan.

Related: Acceptance Sampling, Sampling Plan, Sampling Risk
Sampling Risk

The possibility that conclusions drawn from a sample differ from what full inspection would show, including the risk of accepting a bad lot or rejecting a good one.

Related: Acceptance Sampling, Audit Sampling, Confidence Level
Audit Sampling

Selecting less than the full population of records or transactions for audit testing, using statistical or judgmental methods, then extrapolating conclusions to the population.

Related: Sampling Risk, Audit Evidence, Sampling Plan
Supplier Qualification

The evaluation a purchaser performs before approving a supplier, such as capability questionnaires, sample approval, reference checks, or on-site assessment, against defined selection criteria.

Related: Approved Supplier List, Supplier Scorecard, Second-Party Audit
Approved Supplier List

A controlled register of suppliers authorized to provide specified goods or services, with the scope of approval and any conditions or expiry dates recorded.

Related: Supplier Qualification, Supplier Scorecard
Supplier Scorecard

A periodic summary of supplier performance metrics such as defect rate, on-time delivery, responsiveness, and corrective action closure, used to drive reviews and sourcing decisions.

Related: Supplier Qualification, Corrective Action, Key Performance Indicator (KPI)
Second-Party Audit

An audit performed by one organization on another with which it has a contractual or supply relationship, used to verify supplier capability and conformity to agreed requirements.

Related: Supplier Qualification, Audit Criteria, Third-Party Audit
Verification

Confirming that an output meets its specified requirements, often through inspection, measurement, or review of objective evidence, without necessarily demonstrating fitness for actual use.

Related: Validation, Design Review, Traceability
Validation

Demonstrating through objective evidence that a product, process, or system consistently fulfills the requirements for its intended use or application, often under real or simulated use conditions.

Related: Verification, Process Validation, Design Review
Process Validation

Collecting evidence that a manufacturing or service process reliably produces output meeting specifications, typically through installation, operational, and performance qualification stages.

Related: Validation, Control Plan, Verification
Design Review

A planned, documented examination of a design at defined stages by a cross-functional team to evaluate adequacy, identify problems, and authorize progression to the next phase.

Related: Verification, Validation, FMEA
Traceability

The ability to follow the history, application, or location of an item through recorded identifiers, linking raw materials, batches, processes, and finished goods to their records.

Related: Audit Trail, Containment Action, Record Retention
Nonconformity

A failure to meet a specified requirement, whether in a product, process, document, or management system, which must be recorded, evaluated, and dispositioned.

Related: Corrective Action, Containment Action, Audit Finding
Observation

A noted condition or improvement opportunity that does not currently breach a requirement but indicates weakness or risk, often reported in audits without formal nonconformity status.

Related: Audit Finding, Nonconformity
Pareto Analysis

Ranking problem categories by frequency or impact to show that a small number of causes account for most of the effect, guiding where improvement effort should start.

Related: Fishbone Diagram, Root Cause Analysis, FMEA
Fishbone Diagram

A cause-and-effect diagram that branches potential causes into categories such as people, methods, machines, materials, measurement, and environment to structure brainstorming around a problem.

Related: Root Cause Analysis, 5 Whys, Pareto Analysis
Plan-Do-Check-Act (PDCA)

An iterative improvement cycle: plan a change and expected results, run it on a small scale, check outcomes against expectations, then standardize or adjust based on findings.

Related: Continual Improvement, Root Cause Analysis
Continual Improvement

The ongoing, systematic effort to raise performance by setting objectives, measuring results, and applying changes, embedded in routine management rather than treated as a one-time project.

Related: Plan-Do-Check-Act (PDCA), Quality Objective, Key Performance Indicator (KPI)
Key Performance Indicator (KPI)

A selected metric with a defined formula, target, owner, and review cadence that signals whether a process or objective is performing as intended.

Related: Quality Objective, Management Review, Process Capability
Conflict of Interest

A situation where a professional's personal, financial, or other interest could improperly influence judgment, requiring disclosure and often removal from the affected decision.

Related: Impartiality, Confidentiality, Professional Competence
Impartiality

The state of making decisions and reporting findings based on objective evidence alone, free from bias, commercial pressure, or relationships that could sway conclusions.

Related: Conflict of Interest, Objectivity, Audit Evidence
Confidentiality

The duty to protect information obtained during audits or work assignments, sharing it only with authorized parties and not using it for personal or competitive advantage.

Related: Conflict of Interest, Impartiality
Professional Competence

Possessing and maintaining the education, training, skills, and experience needed to perform assigned work correctly, including knowledge of the technical subject and applicable requirements.

Related: Impartiality, Audit Criteria, Objectivity
Objectivity

Basing judgments and conclusions solely on verifiable evidence, resisting pressure to soften or exaggerate findings, and separating personal opinion from documented fact.

Related: Impartiality, Audit Evidence, Conflict of Interest