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4. Domain index

Each row names an engineering domain, the rules found in it, and the references that support those rules. A rule can appear under several domains. "Supports" in the rule list means the domain confirms an existing rule but added nothing new.

Found is not the same as applicable. All universal rules apply to every domain in this index, the risk-scaled rules apply wherever the rigor matrix requires them, and the conditional rules apply wherever their condition is true. That holds even where the domain has no published practice yet (adoption gap).

130 domains in 20 branches (12 engineering branches, 8 management branches).

Civil

Domain Rules References
Structural and building P56 Independent checker EPCLand: Checking of design
Geotechnical P68 Observational method ICE: The observational method
Coastal and hydraulic P44 Margin Wikipedia: Return period
Offshore and decommissioning P24 Lifecycle and decommissioning; P10 Decision records JPT: Engineering for decommissioning SPE: Design for decommissioning (basis of design)
Construction management P67 Critical path; P65 Small verified steps Wikipedia: Critical path method Quality Engineers Guide: Hold point and witness point
Transportation P49 Induced demand; P39 Error-proofing Wikipedia: Induced demand FHWA: Zero deaths and the Safe System approach
Environmental and water P15 Precaution; P40 Defense in depth (supports) Wikipedia: Precautionary principle Wikipedia: Multi-barrier approach
Railway operations P71 Checklists Wikipedia: Pointing and calling
Building services P54 Verification and validation Wikipedia: Building commissioning
Municipal and infrastructure asset management P78 Asset inventory Wikipedia: Asset management (incl. ISO 55000)
Geological P68 Observational method (supports) Wikipedia: Geological engineering

Mechanical

Domain Rules References
Machine and pressure vessel design P44 Margin; P60 Codes as minimum Univ. of Portland: Fail-safe designs and factor of safety
Technical drawing P56 Independent checker LibreTexts: Peer review in design
Aerospace design P23 Simplicity and modularity; P24 Lifecycle and decommissioning; P45 Redundancy (N-1); P17 Technology maturity Grokipedia: KISS principle NASA: Design for maintenance ScienceDirect: Fail-safe design Wikipedia: Technology readiness level
Aerospace testing P57 Test as you operate; P65 Small verified steps; P82 Investigate anomalies Aerospace Corp: Test Like You Fly Process Guide Flight Test Fact: The build-up approach Wikipedia: Normalization of deviance
Aviation operations and maintenance P37 Fail-safe; P74 Maintenance by failure pattern; P76 Sterile critical phase PatSnap: Fail-safe design Wikipedia: Reliability-centered maintenance Wikipedia: Sterile flight deck rule
Automotive P46 Diversity; P59 Traceability; P22 Failure and interaction analysis arXiv: Safety design in autonomous vehicles Stell: Requirements traceability Swift Navigation: What is SOTIF (ISO 21448)?
Naval architecture P41 Compartments Wikipedia: Compartment (ship)
Elevators P37 Fail-safe PatSnap: Fail-safe design
Control engineering and machinery P48 Damping; P4 Stop authority Wikipedia: Deadband ISO 13850:2015 Emergency stop function (sample)
Acoustic P38 Hierarchy of controls; P27 Robustness (supports) OSHA Technical Manual: Noise Wikipedia: Mechanical resonance
Space systems P44 Margin; P33 Strict interfaces NASA GSFC-STD-1000 Rev H (resource margins) Wikipedia: Mars Climate Orbiter
Optomechanical and precision engineering P30 Exact constraint Wikipedia: Kinematic coupling (exact constraint)
Energy engineering P3 Sustainability (supports); P49 Induced demand (supports) ENEFIRST: What is Energy Efficiency First?

Materials

Domain Rules References
Fatigue and corrosion P28 Accumulated degradation; P29 Compatibility Wikipedia: Fatigue (material) Wermac: Corrosion allowance Wikipedia: Galvanic corrosion
Forensic engineering P83 Preserve evidence PHMSA: Metallurgical Laboratory Failure Examination Protocol Wikipedia: Forensic engineering
Welding P61 Qualified procedure and person Wikipedia: Welding Procedure Specification
Ceramics and brittle materials P34 Weakest-link scaling Wikipedia: Weibull modulus Wikipedia: Size effect on structural strength
Metallurgical P14 Provenance Wikipedia: Mill test report
Electronic materials P28 Accumulated degradation (supports) Wikipedia: Electromigration
Polymers P28 Accumulated degradation (supports) Wikipedia: Creep (deformation)
Nanotechnology P15 Precaution (supports) Wikipedia: Regulation of nanotechnology

Electrical

Domain Rules References
Electronics P45 Redundancy (N-1); P44 Margin (supports) USPTO: Materials-based failure analysis in electronic devices Wikipedia: Derating
Power grids P45 Redundancy (N-1); P47 Graceful degradation SINTEF: N-1 isn't always enough Wikipedia: Load shedding
Telecom and network P32 End-to-end; P33 Strict interfaces Wikipedia: End-to-end principle Wikipedia: Robustness principle (incl. RFC 9413 critique)
Computer engineering P26 Design for testability; P50 Bottleneck first (supports) Wikipedia: Design for testing Wikipedia: Amdahl's law
Broadcast P70 Monitoring in operation TV Technology: Confidence monitors
Microwave P33 Strict interfaces (supports) Wikipedia: Impedance matching
Optical (laser safety) Master rule (supports) Wikipedia: Laser safety

Chemical

Domain Rules References
Chemical process safety P64 Versioning and change review; P38 Hierarchy of controls OSHA 29 CFR 1910.119 (management of change) Wikipedia: Inherent safety
Oil and gas P40 Defense in depth JPT: Robust well barrier and well integrity management
Food safety P72 Critical control points FDA: HACCP Principles & Application Guidelines
Pharma and clinical trials P11 Trustworthy evidence FDA: Electronic Source Data guidance (ALCOA)
Textile P58 Comparable measurement ISO 139:2005 Textiles - standard atmospheres (sample) Chiuvention: Why fabric test results vary with weather
Electrochemical (batteries) P41 Compartments (supports) NASA: Can cell-to-cell thermal runaway propagation be prevented?
Molecular and biomolecular engineering P31 Design by selection; P81 Plan-Do-Check-Act (supports) Wikipedia: Directed evolution Molecular Devices: Design-build-test-learn cycle

Nuclear

Domain Rules References
Nuclear P24 Lifecycle and decommissioning; P37 Fail-safe; P42 Two-person rule IAEA: Decommissioning by design PatSnap: Fail-safe design Wikipedia: Two-man rule

Mining

Domain Rules References
Mining P72 Critical control points Mining Weekly: ICMM critical control management guide

Biomedical

Domain Rules References
Medical devices and human factors P25 Human factors; P59 Traceability MD+DI: Human factors engineering egtechnology: Usability example Stell: Requirements traceability
Surgery P71 Checklists ScienceDaily: WHO surgical checklist study (2009) ICES: Ontario checklist study (2014)
Clinical engineering P75 Actionable alerts Wikipedia: Alarm fatigue
Bioinformatics P13 Automated reproducible results Sandve et al.: Ten Simple Rules for Reproducible Computational Research
Biomaterials P29 Compatibility Wikipedia: Biocompatibility
Biomechanics P25 Human factors Wikipedia: Anthropometry
Medical imaging (radiation protection) Master rule (supports) Wikipedia: ALARP / ALARA
Neural engineering P72 Critical control points (supports) Wikipedia: Shannon criteria

Agricultural

Domain Rules References
Agricultural and biosystems P27 Robustness (supports) PMC: Engineering approach for sustainable biological systems

Industrial

Domain Rules References
Manufacturing P4 Stop authority; P39 Error-proofing Wikipedia: Andon (manufacturing) UserSolutions: Poka-yoke
Quality engineering P81 Plan-Do-Check-Act; P27 Robustness ISO Central: PDCA Penn State: Taguchi's Robust Design Method
Occupational and industrial safety P38 Hierarchy of controls; P66 Isolation before work CDC/NIOSH: Hierarchy of controls OSHA: Control of hazardous energy (lockout/tagout)
Fire protection P73 Response faster than harm Fire Risk Assessment Network: ASET and RSET
Industrial engineering and operations research P50 Bottleneck first; P44 Margin Wikipedia: Theory of constraints Linda Green: Queueing theory and modeling
Supply chain engineering P51 Shared demand signal Wikipedia: Bullwhip effect Lee, Padmanabhan, Whang: Information Distortion in a Supply Chain (Management Science 1997)

Computing

Domain Rules References
Software engineering P55 Find defects early; P23 Simplicity and modularity; P10 Decision records arXiv: Revisiting cost-to-fix Grokipedia: KISS principle adr.github.io: Architectural Decision Records
Security engineering P36 Least privilege; P40 Defense in depth Jamf: NIST definition of least privilege ScienceDirect: Least privilege and defense in depth Palo Alto Networks: Defense in depth
Site reliability engineering P80 Blameless root cause analysis; P70 Monitoring in operation Google SRE: Postmortem culture Google SRE: Monitoring distributed systems
Simulation and computational engineering P12 Model validity Wikipedia: V&V of computer simulation models
Data and ML engineering P77 Data as a dependency Sculley et al.: Hidden Technical Debt in ML Systems (NeurIPS 2015) Wikipedia: Concept drift
Quantum engineering and computing theory P45 Redundancy (N-1) Wikipedia: Quantum error correction von Neumann: Lectures on Probabilistic Logics and the Synthesis of Reliable Organisms from Unreliable Components (Caltech, 1952)

Cross-cutting

Domain Rules References
Professional ethics P1 Public safety first; P2 Work within competence; P3 Sustainability; P6 Conflict-of-interest disclosure NSPE Ethics Reference Guide NSPE: Sustainability and the PE's obligations
Systems engineering P9 Measurable requirements; P54 Verification and validation; P59 Traceability FDOT Systems Engineering 100 arXiv: V&V in Systems of Systems Stell: Requirements traceability
Configuration management P64 Versioning and change review arXiv: Controls and machine protection arXiv: Agentic Configuration Management
Reliability and safety engineering P22 Failure and interaction analysis EBSCO: FMEA BMJ Qual Saf / PMC: FMEA outputs - are they valid? Leveson & Thomas: STPA Handbook
Accident research P82 Investigate anomalies Wikipedia: Normalization of deviance National Academies: Accident precursor analysis
Metrology P58 Comparable measurement Wikipedia: Measurement uncertainty Wikipedia: Metrological traceability
Risk regulation (UK HSE) Master rule Primatech: ALARP principle
Design engineering P16 Set-based design Sobek, Ward, Liker: Toyota's Principles of Set-Based Concurrent Engineering
Engineering physics P12 Model validity Wikipedia: Fermi problem

Management: Governance and assurance

Domain Rules References
Corporate governance P6 Conflict-of-interest disclosure; P56 Independent checker (supports) G20/OECD Principles of Corporate Governance 2023 ISO 37000:2021 Governance of organizations (catalogue page)
Internal audit and assurance P40 Defense in depth; P56 Independent checker IIA: The Three Lines Model (2020)
Statutory audit P56 Independent checker Regulation (EU) No 537/2014, Article 17 (text copy)
Internal control P43 Segregation of duties; P42 Two-person rule NIST CSRC Glossary: separation of duty (SP 800-192)
Compliance management P60 Codes as minimum; P59 Traceability ISO 37301:2021 Compliance management systems (catalogue page)
Whistleblowing and speak-up P4 Stop authority Directive (EU) 2019/1937 (EUR-Lex)
Anti-bribery P6 Conflict-of-interest disclosure (supports) ISO 37001 Anti-bribery management systems (catalogue page)

Management: Strategy and decisions

Domain Rules References
Enterprise risk management Master rule; P16 Set-based design; P22 Failure and interaction analysis COSO: ERM — Integrating with Strategy and Performance, Executive Summary (2017) ISO 31000:2018 Risk management (catalogue page)
Decision making P18 Decision speed by reversibility Amazon 2015 letter to shareholders (SEC filing)
Red teaming and challenge P56 Independent checker; P46 Diversity UK MoD: Red Teaming Handbook, 3rd ed. (2021)
Military command and control P7 Commander's intent; P2 Work within competence US Army ADP 6-0 Mission Command (2019)
Pre-mortem risk identification P22 Failure and interaction analysis Klein: Performing a Project Premortem (HBR 2007)

Management: Portfolio, programme and project

Domain Rules References
Project management P67 Critical path; P65 Small verified steps; P75 Actionable alerts; P20 Stop criteria set in advance; Master rule (tailoring) ISO 21502:2020 Guidance on project management (catalogue page) PMI: PMBOK Guide 8th edition Purple Griffon: PRINCE2 7th edition principles
Portfolio management P20 Stop criteria set in advance (supports); P22 (portfolio view) ISO 21504:2022 Guidance on portfolio management (catalogue page)
Forecasting of large projects P12 Model validity Flyvbjerg: From Nobel Prize to Project Management (2006)
Agile and Scrum P66 Isolation before work; P81 Plan-Do-Check-Act; P23 Simplicity; P28 Accumulated degradation Principles behind the Agile Manifesto The Scrum Guide (2020)
Software delivery management P65 Small verified steps DORA: Working in small batches
Software project staffing P53 Late work and added people The Jargon File: Brooks's Law

Management: Product and innovation

Domain Rules References
Experimentation P31 Design by selection Kohavi & Thomke: The Surprising Power of Online Experiments (HBR 2017)
Innovation management P17 Technology maturity (supports) ISO 56001:2024 Innovation management system (catalogue page)

Management: Operations, quality and supply

Domain Rules References
Quality management P81 Plan-Do-Check-Act; P1 Public safety first (ethics); P39 Error-proofing; P19 Indicators are not targets (supports) ISO: ISO 9001:2026 launch (16 Sep 2026) The W. Edwards Deming Institute: 14 Points
Lean production P4 Stop authority Toyota: Toyota Production System (jidoka)
Operations and queueing P52 Limit work in progress; P44 Margin Little: Little's Law as Viewed on Its 50th Anniversary (reprint)
Supply chain management P51 Shared demand signal Lee, Padmanabhan, Whang: Information Distortion in a Supply Chain (Management Science 1997)
Procurement P6 Conflict-of-interest disclosure; P3 Sustainability OECD Recommendation on Public Procurement: Integrity ISO 20400:2017 Sustainable procurement (catalogue page)
Responsible supply chains P14 Provenance OECD Due Diligence Guidance for Responsible Business Conduct (2018)
Asset management P78 Asset inventory ISO 55000:2024 Asset management (catalogue page)
IT service management P64 Versioning and change review; P33 Strict interfaces ISO/IEC 20000-1:2018 Service management (catalogue page)
Domain Rules References
Business continuity P73 Response faster than harm; P47 Graceful degradation BCI Good Practice Guidelines 2018 (with ISO 22301:2019 definitions) ISO 22301:2019 (catalogue page)
Incident and crisis management P30 Exact constraint (unity of command); P79 Span of control; P76 Sterile critical phase; P37 Fail-safe (transfer of command) FEMA: National Incident Management System, 3rd ed. (2017) ISO 22361:2022 Crisis management (catalogue page)
Information security management P36 Least privilege; P78 Asset inventory ISO/IEC 27001:2022 (catalogue page)
Data protection P36 Least privilege; P24 Lifecycle and decommissioning; P11 Trustworthy evidence GDPR Article 5 (text copy)
Records management and accounting P11 Trustworthy evidence § 239 HGB (text copy, dejure.org) ISO 15489-1:2016 Records management (catalogue page)
Litigation and investigations P83 Preserve evidence The Sedona Conference: Commentary on Legal Holds, Second Edition: The Trigger & The Process (2019)
Occupational health and safety P38 Hierarchy of controls ISO 45001:2018 (catalogue page) Auditor Training Online: ISO 45001 Clause 8.1.2, Eliminating hazards and reducing OH&S risks (2023)
Environmental management P3 Sustainability ISO 14001:2015, withdrawn, replaced by ISO 14001:2026 (catalogue page)
Organizational accident research P82 Investigate anomalies Columbia Accident Investigation Board report, Vol. 1 (2003), summary

Management: People and organization

Domain Rules References
Team leadership P5 Psychological safety; P25 Human factors (role clarity) Edmondson: Psychological Safety and Learning Behavior in Work Teams (ASQ 1999) Google re:Work: Understand team effectiveness
Personnel selection P62 Structured selection of people Sackett et al.: Revisiting meta-analytic estimates of validity in personnel selection (J. Appl. Psychol.)
Performance feedback P63 Feedback on the task Kluger & DeNisi: The effects of feedback interventions on performance (Psychol. Bull. 1996)
Goals and performance measurement P21 Specific, challenging goals with feedback; P19 Indicators are not targets; P9 Measurable requirements Locke & Latham: Building a practically useful theory of goal setting (Am. Psychol. 2002) Wikipedia: Campbell's law
Working time and health P28 Accumulated degradation WHO/ILO: Long working hours increasing deaths (2021) Pencavel: The Productivity of Working Hours (IZA DP 8129, 2014)
Work design and focus P76 Sterile critical phase Mark, Gudith, Klocke: The cost of interrupted work (CHI 2008)
Succession and human capital P45 Redundancy (N-1); P58 Comparable measurement ISO TC 260: People power (ISO 30414, ISO/TS 30433)
Knowledge management P45 Redundancy (supports); P10 Decision records (supports) ISO 30401:2018 Knowledge management systems (catalogue page)
Change management P69 Guided change Kotter: Leading Change — Why Transformation Efforts Fail (HBR 1995)
Organizational justice P8 Fair process Kim & Mauborgne: Fair Process (HBR 1997)
Organization design P35 Structure follows the intended system; P79 Span of control Conway: How Do Committees Invent? (1968)
Escalation of commitment P20 Stop criteria set in advance Staw: Knee-deep in the big muddy (1976)

Management: Finance

Domain Rules References
Accounting and bookkeeping P11 Trustworthy evidence § 239 HGB (text copy, dejure.org)
Payments and treasury P42 Two-person rule; P43 Segregation of duties NIST CSRC Glossary: separation of duty
Budgeting P49 Induced demand Parkinson: Parkinson's Law (The Economist, 1955; text copy)

Checked without a separate row

These domains produced no sourced rule. The last column shows which rules apply anyway by cross-reference, in addition to all universal rules. This column is the author's judgment, not a sourced finding.

Domain Reason Applicable by cross-reference (besides all universal rules)
Regenerative medicine searched; no source found for a distinct principle P59 (regulated), P15 (irreversible harm), P17 (new technology), P61 (results that cannot be fully inspected)
Composite materials the source for barely visible impact damage could not be fetched; not included P61 (hidden damage that inspection cannot fully find)
Computational materials the checked source has no statement on model validation; P12 covers model validity P31 (weak models), P77 (data-driven models)
Material characterization the checked source has no statement on calibration; P58 covers it universal rules only; P58 is the central one
Sports engineering no distinct principle found; equipment safety standards fit P60 P60 (equipment standards exist)
Thermal engineering the checked source states only that heat must be managed for reliability; covered by P44 (derating) and P28 P48 (thermal control loops)
Surface engineering, industrial plant, power plant, project, information, facilities not researched separately; they overlap covered domains (P28, P24, P45, P74, P67, P77) plants: P45, P59, P48, P78; information: P33, P77; project: universal rules only
Applied engineering, electromechanics, mechatronics umbrella terms that combine other branches P33 (data interfaces), P48 (control loops)
Geomatics only the units and reference-frame principle (P33) applies; no geomatics-specific source P33 (data interfaces), P77 (data-driven results)
Explosives and military engineering out of scope beyond organizational practice (P42 two-person rule) not assessed (out of scope)
Sales and marketing management not researched separately P19 (sales quotas are gamed), P31 (experiments), P51 (share sell-through data)
Customer service management not researched separately P47 (triage under overload), P75 (escalation only on exception), P52 (queue length)
Facility management (ISO 41001), energy management (ISO 50001) catalogue pages not checked P78, P74, P3
Treasury, tax, legal departments covered by finance and compliance rows P43, P42, P60, P59
Public administration covered by procurement, governance and records rows P6, P11, P60, P59
Non-profit management no distinct principle found universal rules and the rules from management sources only
Self-management and time management out of scope (one person, see section 1) P76 and P52 apply to one person as advice, not as organizational rules