Auditing Fundamentals
24.7%of exam
Audit Process
30%of exam
45 Scored ItemsPlanningEvidence + FindingsCAPA + Closure
Auditor Competencies
20%of exam
30 Scored ItemsCommunicationInterviewingTeam Dynamics
Program Management + Business
15.3%of exam
23 Scored ItemsProgram MetricsRisk + Electronic RecordsCost of Quality
Quality Tools + Techniques
10%of exam
15 Scored ItemsBasic ToolsStatistics + SamplingV&V + Risk Tools
Quick Facts
- Credential
- Certified Quality Auditor
- CBT Questions
- 165 multiple-choice
- Scored
- 150 questions
- Pretest
- 15 unscored questions
- Exam Time
- 5 hours 18 minutes
- Appointment
- 5.5 hours
- Passing
- 550/750 scaled
- Case Studies
- Approximately 10-15%
- References
- Open book; bound only
- Exam Fee
- $550 initial
- Retake
- $350
- Experience
- Eight years; three decision-making
- Recertification
- 18 RUs every three years
- Provider
- Prometric
Purpose vs Scope
Purpose
- Why audit occurs
- Shapes audit scope
Scope
- Extent and boundaries
- Locations, processes, time
Why vs what
Audit Type Picker
- Audit own organization→First-party audit
- Customer audits supplier→Second-party audit
- Independent conformity assessment→Third-party audit
- Check finished output→Product audit
- Check work execution→Process audit
- Check interacting processes→System audit
- Multiple management systems→Combined audit
- Multiple auditing organizations→Joint audit
- All evidence gathered off-site→Remote audit
- Remote plus physical work→Hybrid audit
- Specific serious trigger→For-cause audit
- Verify prior actions→CAPA verification audit
Exam Rules
- CBT
- 165 total; 150 scored
- Pretest
- 15 unscored; unidentified
- CBT time
- 318 minutes
- PBT
- 150 scored; five hours
- Passing
- 550 of 750 scaled
- Case studies
- Approximately 10-15%
- Open book
- Bound references only
- Notes
- Must remain bound
- Book tabs
- Attached before entry
- Calculator
- Nonprogrammable handheld allowed
- Wrong answers
- No guessing penalty
Criteria vs Evidence
Criteria
- Requirement yardstick
- Standards, contracts, procedures
Evidence
- Verifiable information
- Observation, records, interviews
Requirement vs proof
Audit Types
- Product audit
- Output versus requirements
- Process audit
- Methods and controls
- System audit
- Interacting management processes
- Desk audit
- Documents or questionnaires
- Element audit
- One requirement across areas
- Management audit
- Leadership system effectiveness
- Combined audit
- Multiple management systems
- Joint audit
- Multiple auditing organizations
- Remote audit
- ICT without physical presence
- Hybrid audit
- Remote plus on-site
- First-party
- Organization audits itself
- Second-party
- Interested party audits supplier
- Third-party
- Independent external audit
Second-Party vs Third-Party
Second-party
- Interested party
- Commonly customer-supplier
Third-party
- Independent external body
- Often certification context
Interested party vs independent
Purpose, Criteria + Roles
- Purpose
- Why audit occurs
- Scope
- Extent and boundaries
- Criteria
- Requirements used as yardstick
- Evidence
- Verifiable audit information
- Finding
- Evidence compared with criteria
- Compliance audit
- Tests specified requirements
- Surveillance audit
- Confirms continued conformity
- For-cause audit
- Responds to specific trigger
- CAPA verification
- Checks implementation and effectiveness
- Risk-based audit
- Prioritizes higher-risk areas
- Audit client
- Requests the audit
- Auditee
- Organization being audited
- Lead auditor
- Directs audit team
- Observer
- Watches without interfering
- Guide
- Facilitates access and safety
- Technical expert
- Supplies specialized knowledge
Ethics + Credibility
- Independence
- Freedom from impartiality threats
- Objectivity
- Unbiased evidence judgment
- Due care
- Competent professional diligence
- Due diligence
- Appropriate fact-finding effort
- Confidentiality
- Protect authorized information
- Conflict interest
- Disclose and manage promptly
- Self-review threat
- Auditing own work
- Unsafe condition
- Escalate promptly
- Illegal activity
- Use authorized escalation
- Qualifications
- Knowledge, skill, experience, attributes
Finding Builder: RES
Requirement, Evidence, Statement
R: criteriaE: objective factsS: clear gap
Observation vs Finding
Observation
- Noted audit condition
- May need further review
Finding
- Criteria-linked evaluation
- Evidence supports conclusion
Noted condition vs evaluation
Evidence-to-Finding Path
- Question process operation→Interview personnel
- Need designed control→Review documents
- Need actual practice→Observe work
- Claim remains unverified→Corroborate independently
- Evidence seems inconsistent→Expand sampling
- Evidence lacks requirement→Find valid criteria
- Criteria remain fulfilled→Record conformity
- Criteria not fulfilled→Write nonconformity
- No requirement breached→Consider OFI
- Facts are disputed→Review source evidence
- Evidence remains insufficient→Document limitation
Audit Planning
- Authority
- Permission and access basis
- Objectives
- Results audit should achieve
- Process map
- Relationships and boundaries
- Prior audits
- History and recurring risk
- Gap assessment
- Potential criteria gaps
- Auditor selection
- Competence plus independence
- Logistics
- Access, safety, PPE, workspace
- Audit plan
- Engagement execution design
- Checklist
- Coverage guide, not script
- Working papers
- Evidence and decision trail
- Forward tracing
- Input toward output
- Backward tracing
- Outcome toward source
- Discovery
- Expand around anomalies
- Observation
- Watch actual work
Correction vs Corrective Action
Correction
- Fixes detected issue
- Immediate response
Corrective action
- Eliminates root cause
- Prevents recurrence
Fix now vs prevent recurrence
CAPA Verification Path
- Immediate impact continues→Verify containment
- Problem statement vague→Request specific scope
- Cause lacks evidence→Challenge root cause
- Action treats symptom→Reject CAPA plan
- Schedule ignores risk→Negotiate milestones
- Documents were revised→Verify implementation
- Process performance improved→Verify effectiveness
- Failure recurs→Reopen CAPA
- Commitments remain missed→Escalate management
- Risk needs fieldwork→Conduct re-audit
- Closure criteria satisfied→Close audit
Performance + Evidence
- Opening meeting
- Confirm audit arrangements
- Interview
- Elicits process information
- Document review
- Checks designed controls
- Observation
- Checks actual practice
- Measurement
- Quantifies process evidence
- Observed
- Directly witnessed
- Measured
- Quantified with method
- Confirmed
- Verified against source
- Corroborated
- Supported independently
- Documented
- Recorded and traceable
- Sufficiency
- Enough evidence volume
- Reliability
- Trustworthy evidence source
- Closing meeting
- Present results and next steps
- Factual concurrence
- Agreement on evidence facts
Implementation vs Effectiveness
Implementation
- Action completed
- Procedure and training evidence
Effectiveness
- Failure stays controlled
- Performance evidence over time
Done vs works
Reporting + CAPA
- Nonconformity
- Requirement not fulfilled
- Observation
- Not automatically nonconformity
- OFI
- Nonmandatory improvement opportunity
- Unique ID
- Enables finding tracking
- Executive summary
- Prioritized management view
- Report approval
- Confirms technical completeness
- Distribution
- Authorized recipients only
- Audit file
- Complete defensible record
- Correction
- Fixes immediate nonconformity
- Containment
- Controls immediate impact
- Corrective action
- Prevents recurrence
- Preventive action
- Prevents potential occurrence
- Root cause
- System cause explaining evidence
- Implementation check
- Action completed as planned
- Effectiveness check
- Failure mode remains controlled
- Ineffective CAPA
- Escalate, reissue, or re-audit
- Audit closure
- Program criteria satisfied
Team Stages: FSNPA
Form, Storm, Norm, Perform, Adjourn
Form: orientStorm: conflictNorm: alignPerform: deliverAdjourn: close
Open vs Closed Questions
Open
- Explores process detail
- How, what, describe
Closed
- Confirms specific fact
- Yes, no, exact value
Explore vs confirm
Interviewing + Conflict
- Open question
- Explores process detail
- Closed question
- Confirms specific fact
- Leading question
- Suggests desired answer
- Active listening
- Attend, clarify, summarize
- Paraphrasing
- Confirms shared meaning
- Empathy
- Supports respectful disclosure
- Nonverbal cue
- Prompt verification, not assumption
- Translator
- Manage fidelity risk
- Supervisor present
- Watch coaching pressure
- Mild conflict
- Clarify facts and criteria
- Severe disruption
- Reset rules or escalate
- Cool-down
- Pause unproductive escalation
Team + Communication
- Diplomacy
- Protects working relationship
- Cultural awareness
- Adapts communication respectfully
- Problem-solving
- Resolves live constraints
- Attention detail
- Strengthens evidence accuracy
- Negotiation
- Lead auditor skill
- Forming
- Roles remain uncertain
- Storming
- Conflict surfaces
- Norming
- Team standards stabilize
- Performing
- Team works effectively
- Adjourning
- Closeout and lessons
- Written channel
- Precise permanent record
- Oral channel
- Immediate clarification
- Electronic channel
- Fast; confidentiality controls
COQ: PAIF
Prevention, Appraisal, Internal failure, External failure
P: preventA: assessI: before deliveryE: after delivery
Audit Program Management
- Management support
- Authority, independence, resources
- Staffing budget
- Plan, conduct, respond time
- Auditor training
- Maintains relevant competence
- Program metric
- Measures value and risk
- Internal program
- Policies, schedules, review cycles
- Supplier program
- Qualification through improvement
- Self-assessment
- Supplier evidence needing verification
- Surveillance
- Ongoing supplier monitoring
- Best practice
- Proven transferable method
- Risk-based schedule
- Risk sets frequency and depth
- Management review
- Trends and risk input
- Business continuity
- Critical operations survive disruption
- Succession planning
- Protects critical-role continuity
Business + Electronic Records
- Data integrity
- Complete trustworthy records
- Access control
- Authorized system use
- Audit trail
- Who changed what when
- Retention
- Records remain available
- Cybersecurity
- Protect systems and evidence
- Prevention cost
- Avoids quality failures
- Appraisal cost
- Evaluates conformity
- Internal failure
- Failure before delivery
- External failure
- Failure after delivery
- Process interrelationship
- Handoffs create shared risk
- Strategic deployment
- Audit tests execution
DMAIC
Define, Measure, Analyze, Improve, Control
D: problemM: baselineA: causesI: solutionsC: sustain
Common vs Special Cause
Common cause
- Inherent system variation
- Needs system change
Special cause
- Assignable unusual variation
- Investigate specific source
System noise vs signal
Quality Tool Picker
- Rank defect categories→Pareto chart
- Brainstorm possible causes→Fishbone diagram
- Map process sequence→Flowchart
- Collect occurrence tallies→Check sheet
- View distribution shape→Histogram
- Compare two variables→Scatter diagram
- Monitor process stability→Control chart
- Probe underlying cause→5 Whys
- Structure improvement project→DMAIC
- Organize workplace→5S
- Map end-to-end flow→Value-stream map
- Prioritize failure modes→FMEA
- Analyze strategic context→SWOT
Basic Quality Tools
- Pareto chart
- Ranks vital few
- Fishbone
- Organizes potential causes
- Flowchart
- Maps process sequence
- Control chart
- Monitors process stability
- Check sheet
- Collects structured tallies
- Scatter diagram
- Shows variable association
- Histogram
- Shows distribution shape
- 5 Whys
- Drills toward root cause
- PDCA
- Closes improvement loop
- DMAIC
- Structured process improvement
- 5S
- Organizes visual workplace
- Kanban
- Downstream pull signal
- Poka-yoke
- Prevents or detects errors
- Value-stream map
- Exposes flow and delay
5S
Sort, Set, Shine, Standardize, Sustain
Sort: removeSet: arrangeShine: cleanStandardize: repeatSustain: maintain
Control vs Specification Limits
Control limits
- Calculated from process
- Signals statistical stability
Specification limits
- Set by requirements
- Defines acceptable output
Behavior vs requirement
Sampling Picker
- Need unbiased selection→Random sampling
- Distinct subgroups matter→Stratified sampling
- Natural groups dominate→Cluster sampling
- Critical risk dominates→Risk-based sampling
- Data are pass-fail→Attributes plan
- Data are measurements→Variables plan
- Measurement trust uncertain→Perform MSA
- Lot disposition needed→Acceptance sampling
Statistics + Variation
- Mean
- Arithmetic average; outlier-sensitive
- Median
- Ordered middle; outlier-resistant
- Mode
- Most frequent value
- Standard deviation
- Spread around mean
- Frequency distribution
- Counts across value ranges
- Common cause
- Inherent system variation
- Special cause
- Assignable unusual variation
- Control limits
- Calculated process behavior
- Specification limits
- Customer or engineering requirements
- Cp
- Potential spread capability
- Cpk
- Centered actual capability
- Cp formula
- (USL−LSL) ÷ 6σ
- Cpk formula
- Nearest spec distance ÷ 3σ
- Outlier
- Investigate before excluding
Eight Wastes: DOWNTIME
Defects, Overproduction, Waiting, Talent, Transport, Inventory, Motion, Extra
D: defectsO: overproductionW: waitingN: nonused talentT: transportI: inventoryM: motionE: extra processing
Cp vs Cpk
Cp
- Potential capability
- Spread only
Cpk
- Actual capability
- Spread plus centering
Potential vs actual
Sampling, Risk + V&V
- Attribute sampling
- Pass-fail or defect counts
- Variables sampling
- Measured continuous data
- Random sample
- Equal selection chance
- Stratified sample
- Samples every subgroup
- Cluster sample
- Samples natural groups
- Risk-based sample
- Targets higher-risk evidence
- Consumer risk β
- Accepting unacceptable lot
- Producer risk α
- Rejecting acceptable lot
- Confidence level
- Statistical assurance degree
- MSA
- Measurement system adequacy
- Change control
- Controls approved changes
- Configuration management
- Maintains approved baselines
- Verification
- Meets specified requirements
- Validation
- Meets intended use
- FMEA
- Prioritizes potential failure modes
- HACCP
- Controls critical hazard points
- CTQ
- Measurable customer-critical requirement
- SWOT
- Internal and external context
Verification vs Validation
Verification
- Requirements met
- Built right
Validation
- Intended use met
- Right thing built
Specification vs user need
Consumer vs Producer Risk
Consumer risk β
- Accept bad lot
- False acceptance
Producer risk α
- Reject good lot
- False rejection
Buyer harm vs seller harm
Common Traps
Scaled score
550 of 750 scaled ≠ Not 73.3% correct
CBT item count
165 total questions ≠ Only 150 are scored
Pretest items
Unidentified throughout exam ≠ Answer every question
Open book
Bound references allowed ≠ Loose notes prohibited
Audit client
Requests the audit ≠ May differ from auditee
Party relationship
Certification service contract ≠ Customer-supplier relationship
Checklist use
Supports coverage consistency ≠ Never replaces judgment
Objective evidence
Must be verifiable ≠ Documented does not ensure truth
OFI classification
No requirement breach ≠ Not hidden nonconformity
CAPA ownership
Auditee designs action ≠ Auditor evaluates adequacy
CAPA closure
Implementation plus effectiveness ≠ Procedure update alone insufficient
Control limits
Describe process behavior ≠ Do not define acceptance
Process capability
Requires stable process ≠ High Cp alone insufficient
Scatter diagrams
Show association ≠ Do not prove causation
Outlier handling
Investigate before exclusion ≠ Never delete automatically
Last Minute
- 1.I-V weights: 24.7%,30%,20%,15.3%,10%
- 2.Audit Process carries 45 items
- 3.CBT: 150 scored plus 15 pretest
- 4.Passing score: 550/750 scaled
- 5.Case studies: approximately 10-15%
- 6.All reference materials stay bound
- 7.Purpose explains why; scope sets boundaries
- 8.Criteria = requirement; evidence = proof
- 9.Finding compares evidence with criteria
- 10.First-party = internal self-audit
- 11.Second-party = interested-party audit
- 12.Third-party = independent external audit
- 13.Forward traces input toward output
- 14.Backward traces outcome toward source
- 15.Corroborate high-risk disputed evidence
- 16.Correction fixes; corrective action prevents recurrence
- 17.CAPA needs implementation and effectiveness
- 18.Open questions explore; closed confirm
- 19.COQ: prevention, appraisal, two failures
- 20.Control limits differ from specifications
- 21.Cp = spread; Cpk includes centering
- 22.Consumer risk accepts bad lots
- 23.Producer risk rejects good lots
- 24.Verification = requirements; validation = use
- 25.Investigate every outlier before exclusion
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