CSQP key terms
CSQP · Get comfortable with the vocabulary.
- Supplier Quality Management (SQM)
- Related: Supplier Lifecycle Management, Cost of Poor Quality
The coordinated set of processes a buying organization uses to define, verify, and improve the quality of goods and services it receives from external providers across the full relationship lifecycle.
- Supplier Lifecycle Management
- Related: Supplier Quality Management (SQM), Approved Supplier List
A stage-gated approach that governs a supplier from initial need identification through qualification, performance management, development, and eventual exit or obsolescence.
- Cost of Poor Quality (COPQ)
- Related: Cost of Quality, Supplier Scorecard
The total cost incurred from defects, including internal scrap, rework, warranty, returns, inspection, and lost customer goodwill; used to justify supplier improvement investment.
- Cost of Quality (CoQ)
- Related: Cost of Poor Quality (COPQ), Total Cost of Ownership
A framework splitting quality-related spending into prevention, appraisal, internal failure, and external failure categories to guide where resources should be allocated.
- Total Cost of Ownership (TCO)
- Related: Cost of Quality, Supplier Selection Criteria
An estimate of all costs associated with a purchased item over its life, including price, freight, inspection, defects, inventory, and administrative burden, used instead of unit price alone.
- Supplier Code of Conduct
- Related: Supplier Qualification, Supplier Risk Assessment
A documented set of expectations covering ethics, labor, environment, safety, and compliance that a buyer requires suppliers to accept and cascade to their own sub-tier sources.
- Procurement-Quality Alignment
- Related: Supplier Scorecard, Supplier Relationship Management
The working agreement between purchasing and quality functions on decision rights, shared metrics, and escalation paths so commercial and quality goals do not conflict.
- Supplier Qualification
- Related: Supplier Assessment Audit, Approved Supplier List
A structured evaluation that confirms a potential supplier has the capability, capacity, certifications, and controls needed before it is approved to receive business.
- Supplier Selection Criteria
- Related: Total Cost of Ownership, Supplier Risk Assessment
The weighted factors, such as technical capability, quality system maturity, cost, delivery, financial stability, and risk, used to compare and rank candidate suppliers.
- Approved Supplier List (ASL)
- Related: Supplier Qualification, Supplier Lifecycle Management
A controlled register of suppliers authorized to receive purchase orders, typically recording approved scope, part numbers, approval status, and review dates.
- Supplier Assessment Audit
- Related: Audit Checklist, Corrective Action Request
An on-site or remote evaluation of a candidate or existing supplier's quality system, processes, and records against defined requirements to verify capability.
- Request for Quotation (RFQ)
- Related: Supplier Selection Criteria, Statement of Work
A formal solicitation asking suppliers to propose pricing and technical approach for defined requirements, often including quality clauses and capability questionnaires.
- Statement of Work (SOW)
- Related: Request for Quotation (RFQ), Quality Agreement
A document defining the scope, deliverables, acceptance criteria, schedules, and responsibilities for a supplier engagement, forming part of the contractual baseline.
- First Article Inspection (FAI)
- Related: Production Part Approval Process (PPAP), Control Plan
A full verification of the first production units against all drawing and specification requirements, documented on a characteristic-by-characteristic report before mass production.
- Production Part Approval Process (PPAP)
- Related: First Article Inspection (FAI), Process Failure Mode and Effects Analysis (PFMEA)
A standardized submission package demonstrating that a supplier's production process can consistently meet requirements, including design records, process flows, PFMEA, control plans, and measurement results.
- Supplier Scorecard
- Related: Key Performance Indicator (KPI), Supplier Business Review
A periodic report that rates a supplier on agreed metrics such as quality, delivery, cost, and responsiveness, usually with color-coded thresholds and defined consequences.
- Key Performance Indicator (KPI)
- Related: Supplier Scorecard, Rolling Average Yield
A quantifiable measure tied to a strategic objective, chosen because it signals whether supplier performance is improving, stable, or deteriorating.
- Parts Per Million (PPM)
- Related: Rolling Average Yield, Supplier Scorecard
A defect rate expressed as defective units per million units received, allowing comparison of suppliers with very different volumes.
- On-Time In-Full (OTIF)
- Related: Supplier Scorecard, Key Performance Indicator (KPI)
A delivery metric counting only shipments that arrive by the promised date and in the ordered quantity, used to measure supplier logistics reliability.
- Supplier Business Review
- Related: Supplier Scorecard, Corrective Action Request
A scheduled meeting with a supplier to review scorecard results, agree improvement actions, and align on future business, quality, and capacity expectations.
- Corrective Action Request (CAR)
- Related: Root Cause Analysis, 8D Problem Solving
A formal request requiring a supplier to contain a problem, find its root cause, and implement verified actions that prevent recurrence, with documented closure evidence.
- 8D Problem Solving
- Related: Corrective Action Request, Root Cause Analysis
An eight-discipline team method moving from containment through root cause, corrective action, validation, and prevention, commonly required for significant supplier nonconformances.
- Root Cause Analysis
- Related: 5 Whys, Fishbone Diagram
A structured investigation to identify the underlying process or system conditions that allowed a defect to occur, rather than the immediate symptom or operator error.
- Supplier Development
- Related: Supplier Scorecard, Corrective Action Request
Planned activities such as training, coaching, kaizen events, and capability building that raise a supplier's performance rather than simply enforcing requirements through inspection.
- Continuous Improvement
- Related: Supplier Development, Statistical Process Control (SPC)
An ongoing effort to reduce waste and variation through small, sustained changes, supported by measurement and standard work, applied jointly with suppliers.
- Supplier Risk Assessment
- Related: Business Continuity Plan, Single Source Risk
A structured evaluation of the likelihood and impact of supplier failure across financial, operational, quality, geographic, and compliance dimensions, used to prioritize mitigation.
- Single Source Risk
- Related: Supplier Risk Assessment, Dual Sourcing
The exposure created when a purchased item is available from only one qualified supplier or site, so any disruption directly threatens the buyer's operations.
- Dual Sourcing
- Related: Single Source Risk, Approved Supplier List
Deliberately qualifying two or more independent suppliers for the same item to reduce supply interruption exposure, balanced against volume and cost penalties.
- Business Continuity Plan
- Related: Supplier Risk Assessment, Sub-Tier Supplier
A supplier's documented arrangements for maintaining or restoring delivery after disruption, including alternate sites, inventory buffers, and recovery time objectives.
- Sub-Tier Supplier
- Related: Business Continuity Plan, Supplier Code of Conduct
A supplier's own supplier, whose performance and risk affect the final product even though the buyer has no direct contract with it.
- Quality Management System (QMS)
- Related: ISO 9001, Management Review
The documented structure of processes, responsibilities, and records an organization uses to consistently meet customer and regulatory requirements and improve over time.
- ISO 9001
- Related: Quality Management System (QMS), Certification Body
An internationally recognized standard specifying requirements for a quality management system, emphasizing process approach, risk-based thinking, and customer focus.
- Certification Body
- Related: ISO 9001, Supplier Assessment Audit
An independent organization that audits a supplier's management system against a published standard and issues a certificate with defined scope and validity.
- Nonconformance
- Related: Corrective Action Request, Material Review Board
A documented failure of a product, process, or system to meet a specified requirement, which must be contained, dispositioned, and investigated.
- Material Review Board (MRB)
- Related: Nonconformance, Corrective Action Request
A designated group authorized to decide the disposition of nonconforming material, such as rework, repair, use-as-is, return, or scrap.
- Control Plan
- Related: Process Failure Mode and Effects Analysis (PFMEA), Statistical Process Control (SPC)
A document listing the process steps, product characteristics, monitoring methods, sample sizes, frequencies, and reaction plans used to keep a process in control.
- Process Failure Mode and Effects Analysis (PFMEA)
- Related: Control Plan, Risk Priority Number (RPN)
A team-based risk technique that scores potential process failure modes by severity, occurrence, and detection to prioritize preventive actions before defects occur.
- Risk Priority Number (RPN)
- Related: Process Failure Mode and Effects Analysis (PFMEA), Root Cause Analysis
A score calculated by multiplying severity, occurrence, and detection ratings in an FMEA, used to rank failure modes for action, though action thresholds should also consider severity alone.
- Statistical Process Control (SPC)
- Related: Control Plan, Continuous Improvement
The use of control charts and process capability studies to distinguish normal variation from special-cause signals so corrective action can be triggered early.
- Measurement System Analysis (MSA)
- Related: Statistical Process Control (SPC), First Article Inspection (FAI)
A study of the variation contributed by the measurement system itself, such as gauge repeatability and reproducibility, to confirm inspection data can be trusted.
- 5 Whys
- Related: Root Cause Analysis, Fishbone Diagram
A simple technique of repeatedly asking why a problem occurred until the underlying systemic cause is reached, rather than stopping at the first plausible explanation.
- Fishbone Diagram
- Related: 5 Whys, Root Cause Analysis
A cause-and-effect diagram that organizes potential causes of a problem into categories such as people, machine, method, material, measurement, and environment.
- Quality Agreement
- Related: Statement of Work, Supplier Relationship Management
A contract annex that defines each party's quality responsibilities, acceptance criteria, change notification duties, audit rights, and complaint handling expectations.
- Supplier Relationship Management (SRM)
- Related: Supplier Business Review, Quality Agreement
The practice of segmenting suppliers by strategic importance and managing each relationship with appropriate governance, communication, and joint planning.
- Escalation Path
- Related: Corrective Action Request, Supplier Business Review
A predefined sequence of contacts and authority levels used to raise an unresolved supplier issue to higher management within agreed timeframes.
- Change Notification
- Related: Quality Agreement, Production Part Approval Process (PPAP)
A supplier's obligation to inform the buyer before altering process, material, sub-tier source, or site, so the buyer can assess and approve the impact.