API QUSE study materials
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API QUSE key terms

API QUSE · Get comfortable with the vocabulary.

Quality Management System (QMS)

A structured set of documented processes, responsibilities, and resources an organization uses to consistently meet customer and regulatory requirements and to improve its performance over time.

Related: Quality Policy, Process Approach, Continual Improvement
Quality Policy

A short formal statement from top management expressing the organization's overall intentions and direction regarding quality, which frames how quality objectives are set and reviewed.

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

A measurable target related to quality that the organization commits to achieve, typically set at relevant functions and levels and tracked for progress.

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

Managing an organization as a network of interrelated processes, understanding how their inputs, outputs, and interactions affect the ability to achieve intended results.

Related: Process, Process Owner, Risk-Based Thinking
Process

A set of interrelated or interacting activities that transforms inputs into outputs, with defined start and end points, owners, and measures of performance.

Related: Process Approach, Process Owner, Procedure
Process Owner

The person assigned authority and accountability for a process, including its design, performance, resources, and improvement, and who is a natural point of contact for auditors.

Related: Process, Process Approach
Procedure

A specified way to carry out an activity or process, often documented, that describes who does what, when, and how to achieve consistent results.

Related: Work Instruction, Documented Information, Process
Work Instruction

A detailed, task-level document telling an operator exactly how to perform a specific step or activity, typically more granular than a procedure.

Related: Procedure, Documented Information
Documented Information

Information the organization must control and maintain, including documents that provide guidance and records that provide evidence of results achieved.

Related: Record, Document Control, Procedure
Record

Documented information retained as evidence of results achieved or activities performed, which is not revised but protected from alteration and retained for a defined period.

Related: Documented Information, Retention Period, Objective Evidence
Document Control

The practices that ensure documents are approved before use, available where needed, current, legible, and withdrawn or marked when obsolete.

Related: Documented Information, Record, Revision Status
Risk-Based Thinking

A way of planning and operating a QMS that identifies what could go wrong or right and takes proportionate action to prevent undesirable outcomes and seize opportunities.

Related: Risk, Opportunity, Process Approach
Risk

The effect of uncertainty on an intended result, usually described in terms of likelihood of occurrence and severity of consequences if it happens.

Related: Risk-Based Thinking, Opportunity, Corrective Action
Opportunity

A favorable circumstance or possibility that an organization can act on to improve results, such as a new market, method, or capability.

Related: Risk, Risk-Based Thinking, Continual Improvement
Continual Improvement

The recurring activity of enhancing performance, often through incremental steps, by identifying and acting on opportunities and the causes of poor results.

Related: Corrective Action, PDCA Cycle, Quality Objective
PDCA Cycle

A four-stage improvement loop of Plan, Do, Check, and Act in which plans are executed, results are checked against targets, and actions are taken to improve.

Related: Continual Improvement, Corrective Action
Management Review

A planned top-management evaluation of the QMS's suitability, adequacy, and effectiveness, using defined inputs and producing decisions and actions on improvement and resources.

Related: Quality Policy, Quality Objective, Audit Programme
Key Performance Indicator (KPI)

A quantifiable measure chosen to track how well a process or the QMS is achieving a critical objective, used to guide decisions and improvement.

Related: Quality Objective, Management Review
Competence

The demonstrated ability to apply knowledge and skills to achieve intended results, often verified through education, training, experience, or assessment.

Related: Auditor Competence, Training Record
Audit

A systematic, independent, and documented process for obtaining objective evidence and evaluating it objectively to determine the extent to which audit criteria are fulfilled.

Related: Audit Criteria, Objective Evidence, Audit Scope
Audit Criteria

The set of requirements, policies, standards, procedures, or contractual obligations against which audit evidence is compared to reach findings.

Related: Audit, Conformity, Nonconformity
Audit Scope

A statement of the extent and boundaries of an audit, including the organizational units, locations, processes, and time period covered.

Related: Audit Criteria, Audit Plan, Audit Objective
Audit Objective

The purpose or intended outcome of an audit, such as verifying conformity, evaluating effectiveness, or assessing readiness for certification.

Related: Audit Scope, Audit Criteria, Audit Plan
Audit Plan

A description of the activities and arrangements for an audit, covering schedule, areas to be audited, team assignments, and the methods to be used.

Related: Audit Scope, Audit Programme, Audit Team
Audit Programme

A set of one or more audits planned for a specific time frame and directed at a specific purpose, coordinated to achieve overall improvement goals.

Related: Audit Plan, Management Review, Audit Frequency
Audit Team

The group of auditors and technical experts assigned to conduct an audit, led by an audit team leader who manages its activities.

Related: Lead Auditor, Technical Expert, Audit Plan
Lead Auditor

The auditor designated to manage an audit, including planning, directing the team, controlling the audit process, and delivering the final report.

Related: Audit Team, Auditor Competence, Audit Report
Technical Expert

A person who provides specific knowledge or expertise to an audit team but who does not act as an auditor or perform audit functions.

Related: Audit Team, Auditor Competence
Auditor Competence

The combination of education, training, experience, and personal attributes that enables an auditor to conduct audits effectively and make sound judgments.

Related: Lead Auditor, Technical Expert, Competence
Audit Frequency

How often a given area, process, or supplier is audited, set based on risk, past performance, criticality, and required coverage over time.

Related: Audit Programme, Risk, Sampling
Checklist

A structured list of questions or criteria used to guide an audit and record whether each item was verified, helping ensure coverage and consistency.

Related: Audit Plan, Audit Criteria, Opening Meeting
Opening Meeting

A short formal meeting at the start of an audit to confirm scope, criteria, schedule, roles, and logistics with the auditee's management.

Related: Closing Meeting, Audit Plan, Audit Scope
Closing Meeting

A meeting at the end of an audit to present the audit findings, explain their basis, and agree on reporting and follow-up arrangements with the auditee.

Related: Opening Meeting, Audit Finding, Audit Report
Objective Evidence

Verifiable data, records, statements, or observations that support the existence or truth of something, gathered through interview, observation, or document review.

Related: Audit Evidence, Record, Evidence Triangulation
Audit Evidence

Records, statements of fact, or other information that is relevant to the audit criteria and verifiable, forming the basis for audit findings.

Related: Objective Evidence, Audit Finding, Sampling
Evidence Triangulation

Confirming a fact by cross-checking two or more independent sources, such as an interview, a document, and direct observation, before drawing a conclusion.

Related: Audit Evidence, Objective Evidence, Interview
Sampling

Selecting a subset of items from a larger population to examine, with the aim of drawing reasonable conclusions about the whole.

Related: Audit Evidence, Audit Frequency
Audit Finding

The result of evaluating collected audit evidence against audit criteria, which may indicate conformity or nonconformity and is recorded and reported.

Related: Nonconformity, Conformity, Objective Evidence
Conformity

Fulfilment of a requirement, meaning the audited activity or output meets the applicable audit criteria.

Related: Nonconformity, Audit Finding, Audit Criteria
Nonconformity

The failure to meet a requirement, supported by objective evidence, which must be documented, corrected, and investigated for its cause.

Related: Conformity, Corrective Action, Audit Finding
Observation

A finding that does not meet the threshold of a nonconformity but indicates a weakness or opportunity for improvement worth noting to the auditee.

Related: Audit Finding, Opportunity, Nonconformity
Audit Trail

The documented sequence of evidence that allows an auditor to trace an activity or record from origin to outcome and back again.

Related: Objective Evidence, Record, Traceability
Traceability

The ability to follow the history, application, or location of an item or activity through recorded identification, often tested by working backward from output to source.

Related: Audit Trail, Record
Interview

A planned conversation with personnel used to gather evidence about how work is performed and understood, ideally corroborated by observation and records.

Related: Evidence Triangulation, Objective Evidence, Opening Meeting
Audit Report

The formal document that records the audit scope, criteria, findings, conclusions, and any agreed actions, distributed to relevant parties.

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

Action taken to eliminate the cause of a detected nonconformity so it does not recur, typically following root cause analysis and verified for effectiveness.

Related: Nonconformity, Root Cause Analysis, Continual Improvement
Root Cause Analysis

A structured investigation to identify the underlying reason a problem occurred, so that corrective action addresses the cause rather than only the symptom.

Related: Corrective Action, Nonconformity
Follow-Up Audit

A later audit or verification activity that checks whether corrective actions were implemented and effective in preventing recurrence.

Related: Corrective Action, Audit Report, Audit Programme
Retention Period

The defined length of time records must be kept before disposal, set by regulation, contract, or internal policy and monitored for compliance.

Related: Record, Document Control