A - Z Glossary Terms:
Accountability
Someones willingness to take responsibility for their actions and to account for (to tell the story of) their actions.
Adaptation
The ability of workers and systems to adjust to unexpected challenges and changing conditions to maintain safety and performance. Adaptation is essential in dynamic and complex environments.
Adult-adult dynamic
A dynamic in which communication is respectful, collaborative, and equitable, valuing the contributions and expertise of all parties involved. This stands in contrast to hierarchical or paternalistic interactions.
Agency
The capacity and autonomy of individuals to make decisions, take action, and influence outcomes within their roles. HOP emphasizes empowering workers with the knowledge and tools they need to exercise their agency effectively.
Attention Activators
A tool, technique, or prompt designed to quickly capture and focus workers’ attention on critical safety information or tasks.
Auditing to the black line
A method of assessing work as it is actually performed (the blue line) against documented procedures or expectations (the black line), often used to penalize non-compliance, but ideally used to identify gaps and better understand operational realities.
Bias
The preconceptions or predispositions that individuals bring to their understanding and decision-making processes.
Example: Hindsight Bias.
Black line
The plan for completing work ("Work as Imagined"), often unable to account for real-world variability.
Black Line Blue Line
A sense-making model that contrasts the ideal, imagined, or documented work process (black line) with how work is performed in reality (blue line).
Blame
Assigning fault, which can prevent learning and improvement by shutting down curiosity and creating fear and defensiveness.
Blind spot
An area around a machine that the operator cannot see directly. This hidden area can hide people or obstacles, increasing the risk of accidents.
Blue line
The actual path taken to complete work ("Work as Done"), adapting to real-world challenges.
Bollard
A short, strong post that’s put in place to stop vehicles from hitting people, buildings, or equipment, often seen near doors, loading docks, walkways, or machines.
Breaker bar
A long, sturdy metal bar—often just a pipe—that attaches to a wrench to provide extra leverage.
Brittle
A system or process that lacks resilience, offering little capacity to absorb or adapt to variability or unexpected conditions. Brittle systems are prone to failure under stress.
Brittleness
The quality of a system that makes it vulnerable to failure when faced with variability, stress, or unexpected conditions due to a lack of flexibility or resilience.
Candid
The ability to have adult-adult conversations about what is working well or not working well; Open, honest, and straightforward communication that fosters trust and clarity. Candor is essential for operational learning and addressing system weaknesses.
Candid conversations
see: Candid
Capacity
The combined strength of human skills, technical resources, and organizational processes that enable a system to perform effectively and adapt to change while managing variability and maintaining safety.
Cardinal rules
The essential, non-negotiable guidelines in industrial settings that define safe operating practices and ensure process integrity. They serve as the foundation for preventing hazards, maintaining quality, and ensuring compliance with industry standards.
Cheater bar
see: Breaker bar
Child ego position
A set of thoughts, feelings, and behaviors that are replayed from childhood. The child side of the parent-child dynamic (see parent child dynamic). In industry, often workers has been pushed into this state by being treated like a child, rather than an adult.
Combi lift
A brand name, often used to refer to multi-directional and variable reach forklifts
Complacency
A neurological state where repetitive actions trigger the brain to move into habit loops, conserving energy and diverting conscious thought; synonym: autopilot.
Complex adaptive system
A dynamic network of interdependent variables that continuously adapt and evolve to changing environments. It often involves human interaction and requires ongoing adjustment to manage variability and change. Examples include organizations and industrial processes.
Complexity
The interaction of numerous variables and dynamic conditions within a system, making outcomes unpredictable and emergent.
Complexity Science
The study of systems with many connected parts that create unexpected behaviors and patterns that can’t be understood just by looking at the parts alone.
Compliance
Adherence to rules, regulations, and standards. In HOP, compliance is considered necessary but not sufficient to ensure safety or operational excellence. Synonym: autopilot
Compliance mentality
A mindset that prioritizes following rules and procedures above all else—often at the expense of learning, adaptability, or understanding real work. It assumes that rule-following alone will ensure safety and success.
Conklin, Dr. Todd
A doctoral safety expert, consultant, and author specializing in human and organizational performance (HOP), widely recognized for his innovative approaches to accident investigation and prevention.
Context
The specific conditions and circumstances surrounding an event or situation, including both the physical environment and the less tangible factors that influence how work is done and decisions are made.
Coupling of variability
The interaction and amplification of different sources of variability within a system.
Cross-thread
The misalignment of threaded parts during fastening that compromises the connection.
deBono, Edward
A Maltese physician, psychologist, and author renowned for pioneering the concept of lateral thinking, which has profoundly influenced modern creative problem-solving approaches. (May 19, 1933 – June 9, 2021)
Design
A HOP informed design endeavors to support safe, efficient, and adaptable operations in complex industrial settings.
Design team
A HOP-informed design team ensures designs are not only technically sound but also safe, user-friendly, and adaptable to real-world conditions.
Designer
A professional who creates or modifies tools, systems, or processes to meet functional, safety, and operational requirements.
Disciplinary action
Measures imposed on individuals who violate established rules or expectations. (From a HOP perspective, disciplinary action should be applied fairly and proportionately, taking into account underlying system factors that might influence behavior.)
Discipline
See: Disciplinary action
Dock plate
A heavy-duty metal bridge that connects a loading dock to a truck or trailer, providing a stable and level surface for the safe transfer of goods despite differences in height.
Dynamic environment
An environment marked by change, variability, and unpredictability in conditions, processes, and demands.
Efficiency improvement
The process of enhancing how tasks are performed to use fewer resources, such as time, effort, or materials, while maintaining or increasing output.
End user
The worker/consumer who is using the equipment/ procedures/ instructions.
Ergo problems
An issue where the design of tasks, equipment, or work environments does not adequately match human capabilities and limitations, leading to discomfort, inefficiency, or increased injury risk
Error
An unintended action often leading to an unintended result.
Error reduction
The systematic application of design improvements, procedural adjustments, and training to minimize mistakes and enhance safety, quality, and efficiency.
Error sigma
A statistical measure of process performance.
Error-trap
A situation or condition in the work environment that increases the likelihood of making an error or mistake.
Event
An occurrence with potential safety, operational, or system implications.
F.R. clothing
PPE specifically for fire protection.
Failure of imagination
The inability to foresee, plan for, and mitigate all abnormal conditions, leaving systems vulnerable to unanticipated risks and undermining proactive safety management.
Failure of prevention
The breakdown or ineffectiveness of proactive safety measures.
First responder
A worker who has special training to immediately respond to an emergency or critical event
Flight plan
A detailed sequence of maneuvers that outlines the load’s trajectory, rigging configuration, and operational steps to ensure safe, efficient, and coordinated lifting and placement of heavy loads.
Fordism
An industrial production system characterized by standardized, assembly-line methods and mass production techniques pioneered by Henry Ford, emphasizing efficiency and economies of scale while often sacrificing worker autonomy and flexibility.
Fox in the hen house
(idiom) Bob uses this term to describe employee sentiment about inspectors and auditors when they come into the workplace looking to identify and correct non-compliance (without understanding context).
Fundamental Attribution Error
A bias where we think others act a certain way because of their character or personality (a person problem), not their situation (a system problem).
Habit loop
A brain process where a trigger causes a behavior, and if a reward follows, the brain learns to repeat the action automatically.
Hawthorne Effect
The tendency for individuals to change their behavior simply because they are aware that they are being observed.
High accountability environment
An environment that encourages and supports individual responsibility for action, ownership and agency are high values.
Hindsight Bias
The tendency to perceive past events as having been more predictable than they actually were; seeing outcomes as having been obvious or inevitable after they have occurred, often leading to an oversimplified view of how events unfolded.
Hiring mistake
A hiring mistake is an error in the recruitment process where a candidate who is not a good fit for the role or organization is selected, often leading to performance issues and additional costs for the company.
Hollnagel, Erik
A renowned Danish researcher and thought leader in safety science and resilience engineering, best known for developing the Safety-II approach and advancing our understanding of human and organizational performance.
HOP (Human and Organizational Performance)
An operating philosophy that focuses on understanding how humans interact with their work environment and systems.
Hot spots
An area or condition that presents a significant risk or concern due to heightened activity, potential hazards, or operational issues.
Human condition
In a HOP context, this reflects the dual nature of performance—where remarkable adaptability, creativity, and resilience coexist with inherent variability and a propensity for error—highlighting the need for systems that support both human strengths and limitations.
Human error
Unintentional actions or decisions that deviate from established procedures, often arising from inherent human variability and system complexities.
'If' scenario
A planning mindset that treats accidents as conditional events that might occur, leading to elimination and reactive measures rather than proactively preparing and mitigating for the inevitability of such events
Lazy
A label put on actions that prioritize personal efficiency, often reflecting a neurological state where energy is conserved to meet goals.
Leader standard work
A structured set of daily routines and responsibilities that leaders follow to ensure operational consistency, maintain safety standards, and drive continuous improvement through regular performance checks and team engagement.
Leadership team
A group of senior managers and executives who collaboratively set strategic direction, oversee operations, and promote a culture of safety and continuous improvement to drive organizational performance.
LEAN
An industrial philosophy and methodology focused on continuously eliminating waste, optimizing processes, and enhancing efficiency to maximize value and quality in production and operations.
LEAN event
A focused, short-term effort (often called a Kaizen event) where a cross-functional group works intensively to analyze and improve a specific process by eliminating waste and enhancing value.
LEAN team
A group of employees—often from different departments—who collaborate to identify inefficiencies, solve problems, and implement process improvements using LEAN principles.
Learning session
One session of a learning team (see: Learning team)
Learning Team
A facilitated conversation with those who perform the work to understand how the work actually gets done. The goal is to learn first, then define the problems, and lastly to come up with ways to make things better. It is based on elevating the voice of the worker.
Local rationale
The logic behind an individual's action that is informed by context. In work local rationale reflects unique conditions and constraints of a specific operational environment.
Low accountability environment
Environments where policies and procedures remove an individual's sense of agency, and the individual feels easily replaced; the worker's only perceived responsibility is to fulfill the policies and procedures.
Margin for error
The acceptable range of variation in measurements or process parameters that accounts for inherent uncertainties, ensuring that operations remain within safe and effective limits.
Master of the Blue Line
Frontline workers who, operating within complex adaptive systems, possess intimate day-to-day operational knowledge around procedural adherence and necessary adaptations in real-world situations.
Mechanical system
A system that operates in a predictable, linear, and controllable way.
Mistake
An intended action leading to an un-intended outcome.
Mitigation
Strategies and actions taken to reduce the impact or severity of potential risks, hazards, or adverse events
Mitigation control
A targeted safeguard designed to reduce the impact of exposure to a hazard (independent of how the exposure was triggered, e.g. a car bumper).
Mitigation defences
A layered set of physical, procedural, and human-centered measures that intercept and limit harm from exposure to a hazard.
Mitigation strategy
A comprehensive plan that integrates controls and defences to anticipate, manage, and recover from inevitable events in complex systems.
Near miss
A potential perfect storm where a worker adapted and changed before the negative outcome came about, or an element of luck reduced the severity of the outcome.
Normalization
When something unusual or risky becomes seen as normal because it happens often or doesn't immediately cause problems.
Opaque system
A system in which internal processes and decision-making are not readily visible or understandable, making troubleshooting, risk assessment, and optimization more challenging.
Operational challenge
The difficulties encountered during the execution of operational tasks or processes
Operational excellence
The continuous, systematic pursuit of improving processes, quality, efficiency, and safety across an organization, ensuring competitive advantage and sustainable performance.
Operational expertise
The deep, hands-on knowledge and skill that frontline personnel develop over time, enabling them to navigate complex and ever-changing work environments while maintaining safety, efficiency, and resilience.
Operational fidelity
The degree to which a rule or procedure is practical, makes sense for the end user, and aligns with how work is actually done (Blue Line); the rules and procedures make sense in a day to day operation
Operational learning
The process of acquiring, adapting, and applying knowledge and insights gained from operational experiences to improve performance, enhance safety, and optimize processes by learning from both successes and failures, and continuously refining practices based on real-world experience and feedback
Operational learning session
A structured conversation to learn from real work—both what went well and what was challenging—in order to improve performance, enhance safety, and refine processes.
Operational learning team
A small group of workers and leaders who come together to understand how work really happens, share insights from experience, and identify ways to improve safety, performance, and systems by learning from both challenges and successes.
Operational struggle
The difficulties or challenges encountered during the execution of operational tasks or processes
Operational upset
An unexpected or disruptive event that deviates from normal operational conditions and can affect efficiency, or effectiveness of processes.
Operationally efficient
Conducting operations in a manner that maximizes productivity and effectiveness while minimizing waste, costs, and resource use.
Operator
Individuals who executes work on specific processes or machines.
Operator feedback
The insights and observations provided by frontline workers based on their daily experiences, used to inform system improvements and enhance safety in dynamic work environments.
Operator knowledge
The deep, often tacit understanding that operators develop through hands-on experience, enabling them to adapt effectively to real-world conditions and complex systems.
Operator struggle
The challenges and tensions experienced by operators when navigating the gap between the black line and the unpredictable realities of work, often revealing opportunities for system and process improvement.
Ordered system
A structured, predictable environment where operations follow clear, repeatable rules or laws (Like the laws of physics), and failures are typically straightforward with identifiable, single causes that experts can diagnose and fix.
Over controlling
Implementing excessively rigid rules and procedures that limit workers' ability to adapt to real-world variability, thereby reducing overall system resilience and safety.
Oversimplification
The tendency to reduce complex systems and human behaviors to overly simple narratives, thereby neglecting the intricate interplay of factors that drive variability, adaptability, and risk in real-world operations.
Ownership
The proactive commitment of individuals or teams to take responsibility for their actions, openly discuss what they did, and engage in learning to drive system-wide improvements and shared accountability.
Parent ego position
Rules, values, judgments, and beliefs that mimic what we saw in our parent’s actions. The parent side of the parent-child dynamic (see parent child dynamic). In industry, often leaders have been taught to act as the “Critical (or Controlling) Parent” towards workers, which is a pattern of behavior marked by judgment, directive, and rule-enforcing. Others have been taught to act as a Nurturing Parent towards workers, which is a pattern of behavior marked by caring, supportive, and protective actions. Both of these are in contrast to treating individuals as an equal adults.
Parent-child dynamic
A communication style rooted in dependence or deferring to authority, often marked by fear of punishment or a lack of autonomy where the rules and information flow from management to the worker. It contrasts with adult-adult relationships.
Parent-child relationship (dynamic)
A hierarchical communication style where management acts in an authoritative, directive manner—much like a parent—while workers defer and comply due to fear of punishment or a lack of autonomy, contrasting sharply with collaborative adult-adult relationships.
Pendant
crane jargon; A handheld or mounted remote control device that allows operators to manage crane movements and loads with precision, often from a safe distance or specific vantage point.
Perfect storm
A swirl of many conditions coming together at the same time.
Performance Improvement Plan (PIP)
A structured HR tool to give someone a documented opportunity to improve before further action.
Person problem
An issue that follows the person around, regardless of team or department; if the person is replaced the problem goes away.
Planner
An individual hired to plan and/or manage work process execution.
Pressure
see: Production pressure
Prevention
Proactive measures designed to avoid exposure.
Procedure
A documented, repeatable method for executing tasks in an industrial setting, designed to ensure consistent quality, safety, and efficiency while serving as a baseline for continuous improvement and adaptability.
Procedures
Documented, standardized steps that guide workers in performing tasks safely and efficiently, ensuring consistency, regulatory compliance, and quality across operations.
Process
A systematic sequence of operations that transforms inputs into desired outputs, with standardized steps.
Process failure
The breakdown or deviation from established procedures that results in unintended, unsafe, or inefficient outcomes, often exposing vulnerabilities in system design and controls.
Production
The systematic process of transforming raw materials into finished products through standardized operations that prioritize efficiency, quality, and safety.
Production pressure
The drive to meet output targets and deadlines sometimes leading to compromises in safety and often showing system brittleness.
Provocative error-trap
A design or process flaw in an industrial system that inadvertently encourages operators to make an error by triggering misleading cues or ambiguous instructions, thereby increasing the risk of error.
Punishment
The imposition of penalties for non-compliance with established procedures, typically intended to enforce discipline but which can hinder learning and adaptation by focusing on retribution rather than addressing underlying system issues.
Quality miss
Failure to meet established quality standards or specifications in a product, process, or servic
Reason, James
Professor at University of Manchester, discusses principles of error management and is quoted as saying: ‘You cannot change the human condition, but you can change the conditions in which humans work.
Red line
The ever present inherent risk in work.
Reliability
The consistent performance of a system over time, recognizing that while machines can maintain steady outputs, human operators often exhibit variability—especially during repetitive tasks—which can lead to errors and requires systems designed to accommodate these inherent limitations.
Resilience
The capacity of a system and its people to adapt, recover, and continue operating safely amid unexpected disruptions and variability, acknowledging human limitations while harnessing adaptive strengths.
Robot test
A procedural evaluation method where a task is executed in a step-by-step, algorithmic manner—as if by a robot—to assess whether the written procedure is clear, complete, and robust enough to be followed without ambiguity.
Root cause
Fundamental underlying system or process deficiency that, when addressed, prevents the recurrence of a defect or incident.
Rule
A formal directive intended to ensure safe, consistent operations in industrial settings.
Sabotage
The deliberate act of undermining or damaging equipment, processes, or systems, often driven by personal grievances or misalignment with organizational values.
Sense-making model
A tool or framework that helps people or teams make sense of information, observations, or situations.
Sigma
A statistical measure used in industrial quality control that quantifies process variability and error rates
Six Sigma
A data-driven methodology aimed at reducing process variability and defects to near-perfection
Soldiering
The deliberate act of workers reducing their output or slowing their work pace—often as a response to rigid, efficiency-driven management practices rooted in Taylorism.
Solution sets
Collections of viable remedial actions or strategies designed to address operational challenges, improve system performance, and enhance safety by offering multiple options that can be tailored to specific conditions and constraints.
SOP (Standard operating procedures)
Documented, step-by-step instructions designed to standardize routine tasks and processes, ensuring consistent, safe, and efficient performance.
Standard work
Documented, repeatable method for executing tasks in an industrial setting, designed to ensure consistent quality, safety, and efficiency while serving as a baseline for continuous improvement and adaptability.
Stop work
An industrial safety protocol empowering workers to immediately halt operations when they identify an unmitigated hazard or procedural deviation.
Strategic thinking
The process of developing long-term plans that realistically account for human limitations—recognizing that errors and variability are inherent—and incorporating safeguards and contingencies, unlike wishful thinking that assumes flawless, high-performance behavior.
Success
The ability of a system to effectively adapt, recover, and learn from human error and unforeseen challenges, ensuring safe and continuous improvement rather than simply the absence of failures.
System brittleness
The susceptibility of a system or process to failure or significant disruption when faced with unexpected events, deviations, or stresses.
System error
Failures or vulnerabilities inherent in the design, processes, or technology of a system that create conditions for incidents.
System improvement
The process of enhancing the efficiency, effectiveness, reliability, and overall performance of a system or process.
System influences
The broad array of organizational, technical, and environmental factors—such as management practices, workplace culture, equipment design, and operational conditions—that collectively shape performance, risk, and outcomes in industrial systems.
System problem
An inherent flaw or weakness in organizational structures, processes, or technology that creates conditions for error and adverse outcomes, emphasizing that issues are rooted in the system rather than in individual performance.
System weakness
An inherent vulnerability or flaw in an industrial process, design, or infrastructure that can compromise performance and safety.
Systemic issues
A deep-rooted problem embedded in an organization's processes, culture, or structures that affects multiple aspects of operations and requires comprehensive, system-wide changes rather than isolated fixes.
Systemic success
The holistic achievement of reliable, resilient, and safe performance across all levels of an organization, where integrated processes, continuous improvement, and adaptive practices ensure that the entire system thrives even in the face of complexity and change.
Taloristic mindset
A top-down approach that assumes managers know best, undervalues worker input, and treats workers as tools rather than thinkers.
Taylor, Fredrick Winslow
Management theory developer in the early 20th century, who emphasized efficiency and productivity through standardized tasks and close supervision. See Taylorism
Taylorism
(Slang): an industrial mindset where workers are seen as lacking intellect or morals, leading to the belief that planners and managers are better suited to make decisions. Information flows top-down with little input from hands-on workers.
Third shift
A work shift that typically covers the late night to early morning hours.
Traffic flow
The organized movement of personnel, forklifts, and materials throughout the facility.
Trystorm
Used as a synonym for brainstorming—emphasizing the active testing and validation of ideas rather than just generating them.
Turn around
A planned period of downtime in industrial operations, typically for maintenance, inspection, and repair of equipment and facilities.
Weaponize
To deliberately use established procedures as tools of control or punishment.
'When' scenario
A proactive planning mindset in HOP that assumes accidents are inevitable, shifting the focus from questioning if an incident will occur to preparing for when it happens through robust design, prevention, and mitigation strategies.
Wishful thinking
The reliance on overly optimistic assumptions that systems and human performance will operate flawlessly without accounting for inherent human fallibility, natural brain function, and the variability of day-to-day operations.
Worker
A frontline operator.
Accountability
Someones willingness to take responsibility for their actions and to account for (to tell the story of) their actions.
Adaptation
The ability of workers and systems to adjust to unexpected challenges and changing conditions to maintain safety and performance. Adaptation is essential in dynamic and complex environments.
Adult-adult dynamic
A dynamic in which communication is respectful, collaborative, and equitable, valuing the contributions and expertise of all parties involved. This stands in contrast to hierarchical or paternalistic interactions.
Agency
The capacity and autonomy of individuals to make decisions, take action, and influence outcomes within their roles. HOP emphasizes empowering workers with the knowledge and tools they need to exercise their agency effectively.
Attention Activators
A tool, technique, or prompt designed to quickly capture and focus workers’ attention on critical safety information or tasks.
Auditing to the black line
A method of assessing work as it is actually performed (the blue line) against documented procedures or expectations (the black line), often used to penalize non-compliance, but ideally used to identify gaps and better understand operational realities.
Bias
The preconceptions or predispositions that individuals bring to their understanding and decision-making processes.
Example: Hindsight Bias.
Black line
The plan for completing work ("Work as Imagined"), often unable to account for real-world variability.
Black Line Blue Line
A sense-making model that contrasts the ideal, imagined, or documented work process (black line) with how work is performed in reality (blue line).
Blame
Assigning fault, which can prevent learning and improvement by shutting down curiosity and creating fear and defensiveness.
Blind spot
An area around a machine that the operator cannot see directly. This hidden area can hide people or obstacles, increasing the risk of accidents.
Blue line
The actual path taken to complete work ("Work as Done"), adapting to real-world challenges.
Bollard
A short, strong post that’s put in place to stop vehicles from hitting people, buildings, or equipment, often seen near doors, loading docks, walkways, or machines.
Breaker bar
A long, sturdy metal bar—often just a pipe—that attaches to a wrench to provide extra leverage.
Brittle
A system or process that lacks resilience, offering little capacity to absorb or adapt to variability or unexpected conditions. Brittle systems are prone to failure under stress.
Brittleness
The quality of a system that makes it vulnerable to failure when faced with variability, stress, or unexpected conditions due to a lack of flexibility or resilience.
Candid
The ability to have adult-adult conversations about what is working well or not working well; Open, honest, and straightforward communication that fosters trust and clarity. Candor is essential for operational learning and addressing system weaknesses.
Candid conversations
see: Candid
Capacity
The combined strength of human skills, technical resources, and organizational processes that enable a system to perform effectively and adapt to change while managing variability and maintaining safety.
Cardinal rules
The essential, non-negotiable guidelines in industrial settings that define safe operating practices and ensure process integrity. They serve as the foundation for preventing hazards, maintaining quality, and ensuring compliance with industry standards.
Cheater bar
see: Breaker bar
Child ego position
A set of thoughts, feelings, and behaviors that are replayed from childhood. The child side of the parent-child dynamic (see parent child dynamic). In industry, often workers has been pushed into this state by being treated like a child, rather than an adult.
Combi lift
A brand name, often used to refer to multi-directional and variable reach forklifts
Complacency
A neurological state where repetitive actions trigger the brain to move into habit loops, conserving energy and diverting conscious thought; synonym: autopilot.
Complex adaptive system
A dynamic network of interdependent variables that continuously adapt and evolve to changing environments. It often involves human interaction and requires ongoing adjustment to manage variability and change. Examples include organizations and industrial processes.
Complexity
The interaction of numerous variables and dynamic conditions within a system, making outcomes unpredictable and emergent.
Complexity Science
The study of systems with many connected parts that create unexpected behaviors and patterns that can’t be understood just by looking at the parts alone.
Compliance
Adherence to rules, regulations, and standards. In HOP, compliance is considered necessary but not sufficient to ensure safety or operational excellence. Synonym: autopilot
Compliance mentality
A mindset that prioritizes following rules and procedures above all else—often at the expense of learning, adaptability, or understanding real work. It assumes that rule-following alone will ensure safety and success.
Conklin, Dr. Todd
A doctoral safety expert, consultant, and author specializing in human and organizational performance (HOP), widely recognized for his innovative approaches to accident investigation and prevention.
Context
The specific conditions and circumstances surrounding an event or situation, including both the physical environment and the less tangible factors that influence how work is done and decisions are made.
Coupling of variability
The interaction and amplification of different sources of variability within a system.
Cross-thread
The misalignment of threaded parts during fastening that compromises the connection.
deBono, Edward
A Maltese physician, psychologist, and author renowned for pioneering the concept of lateral thinking, which has profoundly influenced modern creative problem-solving approaches. (May 19, 1933 – June 9, 2021)
Design
A HOP informed design endeavors to support safe, efficient, and adaptable operations in complex industrial settings.
Design team
A HOP-informed design team ensures designs are not only technically sound but also safe, user-friendly, and adaptable to real-world conditions.
Designer
A professional who creates or modifies tools, systems, or processes to meet functional, safety, and operational requirements.
Disciplinary action
Measures imposed on individuals who violate established rules or expectations. (From a HOP perspective, disciplinary action should be applied fairly and proportionately, taking into account underlying system factors that might influence behavior.)
Discipline
See: Disciplinary action
Dock plate
A heavy-duty metal bridge that connects a loading dock to a truck or trailer, providing a stable and level surface for the safe transfer of goods despite differences in height.
Dynamic environment
An environment marked by change, variability, and unpredictability in conditions, processes, and demands.
Efficiency improvement
The process of enhancing how tasks are performed to use fewer resources, such as time, effort, or materials, while maintaining or increasing output.
End user
The worker/consumer who is using the equipment/ procedures/ instructions.
Ergo problems
An issue where the design of tasks, equipment, or work environments does not adequately match human capabilities and limitations, leading to discomfort, inefficiency, or increased injury risk
Error
An unintended action often leading to an unintended result.
Error reduction
The systematic application of design improvements, procedural adjustments, and training to minimize mistakes and enhance safety, quality, and efficiency.
Error sigma
A statistical measure of process performance.
Error-trap
A situation or condition in the work environment that increases the likelihood of making an error or mistake.
Event
An occurrence with potential safety, operational, or system implications.
F.R. clothing
PPE specifically for fire protection.
Failure of imagination
The inability to foresee, plan for, and mitigate all abnormal conditions, leaving systems vulnerable to unanticipated risks and undermining proactive safety management.
Failure of prevention
The breakdown or ineffectiveness of proactive safety measures.
First responder
A worker who has special training to immediately respond to an emergency or critical event
Flight plan
A detailed sequence of maneuvers that outlines the load’s trajectory, rigging configuration, and operational steps to ensure safe, efficient, and coordinated lifting and placement of heavy loads.
Fordism
An industrial production system characterized by standardized, assembly-line methods and mass production techniques pioneered by Henry Ford, emphasizing efficiency and economies of scale while often sacrificing worker autonomy and flexibility.
Fox in the hen house
(idiom) Bob uses this term to describe employee sentiment about inspectors and auditors when they come into the workplace looking to identify and correct non-compliance (without understanding context).
Fundamental Attribution Error
A bias where we think others act a certain way because of their character or personality (a person problem), not their situation (a system problem).
Habit loop
A brain process where a trigger causes a behavior, and if a reward follows, the brain learns to repeat the action automatically.
Hawthorne Effect
The tendency for individuals to change their behavior simply because they are aware that they are being observed.
High accountability environment
An environment that encourages and supports individual responsibility for action, ownership and agency are high values.
Hindsight Bias
The tendency to perceive past events as having been more predictable than they actually were; seeing outcomes as having been obvious or inevitable after they have occurred, often leading to an oversimplified view of how events unfolded.
Hiring mistake
A hiring mistake is an error in the recruitment process where a candidate who is not a good fit for the role or organization is selected, often leading to performance issues and additional costs for the company.
Hollnagel, Erik
A renowned Danish researcher and thought leader in safety science and resilience engineering, best known for developing the Safety-II approach and advancing our understanding of human and organizational performance.
HOP (Human and Organizational Performance)
An operating philosophy that focuses on understanding how humans interact with their work environment and systems.
Hot spots
An area or condition that presents a significant risk or concern due to heightened activity, potential hazards, or operational issues.
Human condition
In a HOP context, this reflects the dual nature of performance—where remarkable adaptability, creativity, and resilience coexist with inherent variability and a propensity for error—highlighting the need for systems that support both human strengths and limitations.
Human error
Unintentional actions or decisions that deviate from established procedures, often arising from inherent human variability and system complexities.
'If' scenario
A planning mindset that treats accidents as conditional events that might occur, leading to elimination and reactive measures rather than proactively preparing and mitigating for the inevitability of such events
Lazy
A label put on actions that prioritize personal efficiency, often reflecting a neurological state where energy is conserved to meet goals.
Leader standard work
A structured set of daily routines and responsibilities that leaders follow to ensure operational consistency, maintain safety standards, and drive continuous improvement through regular performance checks and team engagement.
Leadership team
A group of senior managers and executives who collaboratively set strategic direction, oversee operations, and promote a culture of safety and continuous improvement to drive organizational performance.
LEAN
An industrial philosophy and methodology focused on continuously eliminating waste, optimizing processes, and enhancing efficiency to maximize value and quality in production and operations.
LEAN event
A focused, short-term effort (often called a Kaizen event) where a cross-functional group works intensively to analyze and improve a specific process by eliminating waste and enhancing value.
LEAN team
A group of employees—often from different departments—who collaborate to identify inefficiencies, solve problems, and implement process improvements using LEAN principles.
Learning session
One session of a learning team (see: Learning team)
Learning Team
A facilitated conversation with those who perform the work to understand how the work actually gets done. The goal is to learn first, then define the problems, and lastly to come up with ways to make things better. It is based on elevating the voice of the worker.
Local rationale
The logic behind an individual's action that is informed by context. In work local rationale reflects unique conditions and constraints of a specific operational environment.
Low accountability environment
Environments where policies and procedures remove an individual's sense of agency, and the individual feels easily replaced; the worker's only perceived responsibility is to fulfill the policies and procedures.
Margin for error
The acceptable range of variation in measurements or process parameters that accounts for inherent uncertainties, ensuring that operations remain within safe and effective limits.
Master of the Blue Line
Frontline workers who, operating within complex adaptive systems, possess intimate day-to-day operational knowledge around procedural adherence and necessary adaptations in real-world situations.
Mechanical system
A system that operates in a predictable, linear, and controllable way.
Mistake
An intended action leading to an un-intended outcome.
Mitigation
Strategies and actions taken to reduce the impact or severity of potential risks, hazards, or adverse events
Mitigation control
A targeted safeguard designed to reduce the impact of exposure to a hazard (independent of how the exposure was triggered, e.g. a car bumper).
Mitigation defences
A layered set of physical, procedural, and human-centered measures that intercept and limit harm from exposure to a hazard.
Mitigation strategy
A comprehensive plan that integrates controls and defences to anticipate, manage, and recover from inevitable events in complex systems.
Near miss
A potential perfect storm where a worker adapted and changed before the negative outcome came about, or an element of luck reduced the severity of the outcome.
Normalization
When something unusual or risky becomes seen as normal because it happens often or doesn't immediately cause problems.
Opaque system
A system in which internal processes and decision-making are not readily visible or understandable, making troubleshooting, risk assessment, and optimization more challenging.
Operational challenge
The difficulties encountered during the execution of operational tasks or processes
Operational excellence
The continuous, systematic pursuit of improving processes, quality, efficiency, and safety across an organization, ensuring competitive advantage and sustainable performance.
Operational expertise
The deep, hands-on knowledge and skill that frontline personnel develop over time, enabling them to navigate complex and ever-changing work environments while maintaining safety, efficiency, and resilience.
Operational fidelity
The degree to which a rule or procedure is practical, makes sense for the end user, and aligns with how work is actually done (Blue Line); the rules and procedures make sense in a day to day operation
Operational learning
The process of acquiring, adapting, and applying knowledge and insights gained from operational experiences to improve performance, enhance safety, and optimize processes by learning from both successes and failures, and continuously refining practices based on real-world experience and feedback
Operational learning session
A structured conversation to learn from real work—both what went well and what was challenging—in order to improve performance, enhance safety, and refine processes.
Operational learning team
A small group of workers and leaders who come together to understand how work really happens, share insights from experience, and identify ways to improve safety, performance, and systems by learning from both challenges and successes.
Operational struggle
The difficulties or challenges encountered during the execution of operational tasks or processes
Operational upset
An unexpected or disruptive event that deviates from normal operational conditions and can affect efficiency, or effectiveness of processes.
Operationally efficient
Conducting operations in a manner that maximizes productivity and effectiveness while minimizing waste, costs, and resource use.
Operator
Individuals who executes work on specific processes or machines.
Operator feedback
The insights and observations provided by frontline workers based on their daily experiences, used to inform system improvements and enhance safety in dynamic work environments.
Operator knowledge
The deep, often tacit understanding that operators develop through hands-on experience, enabling them to adapt effectively to real-world conditions and complex systems.
Operator struggle
The challenges and tensions experienced by operators when navigating the gap between the black line and the unpredictable realities of work, often revealing opportunities for system and process improvement.
Ordered system
A structured, predictable environment where operations follow clear, repeatable rules or laws (Like the laws of physics), and failures are typically straightforward with identifiable, single causes that experts can diagnose and fix.
Over controlling
Implementing excessively rigid rules and procedures that limit workers' ability to adapt to real-world variability, thereby reducing overall system resilience and safety.
Oversimplification
The tendency to reduce complex systems and human behaviors to overly simple narratives, thereby neglecting the intricate interplay of factors that drive variability, adaptability, and risk in real-world operations.
Ownership
The proactive commitment of individuals or teams to take responsibility for their actions, openly discuss what they did, and engage in learning to drive system-wide improvements and shared accountability.
Parent ego position
Rules, values, judgments, and beliefs that mimic what we saw in our parent’s actions. The parent side of the parent-child dynamic (see parent child dynamic). In industry, often leaders have been taught to act as the “Critical (or Controlling) Parent” towards workers, which is a pattern of behavior marked by judgment, directive, and rule-enforcing. Others have been taught to act as a Nurturing Parent towards workers, which is a pattern of behavior marked by caring, supportive, and protective actions. Both of these are in contrast to treating individuals as an equal adults.
Parent-child dynamic
A communication style rooted in dependence or deferring to authority, often marked by fear of punishment or a lack of autonomy where the rules and information flow from management to the worker. It contrasts with adult-adult relationships.
Parent-child relationship (dynamic)
A hierarchical communication style where management acts in an authoritative, directive manner—much like a parent—while workers defer and comply due to fear of punishment or a lack of autonomy, contrasting sharply with collaborative adult-adult relationships.
Pendant
crane jargon; A handheld or mounted remote control device that allows operators to manage crane movements and loads with precision, often from a safe distance or specific vantage point.
Perfect storm
A swirl of many conditions coming together at the same time.
Performance Improvement Plan (PIP)
A structured HR tool to give someone a documented opportunity to improve before further action.
Person problem
An issue that follows the person around, regardless of team or department; if the person is replaced the problem goes away.
Planner
An individual hired to plan and/or manage work process execution.
Pressure
see: Production pressure
Prevention
Proactive measures designed to avoid exposure.
Procedure
A documented, repeatable method for executing tasks in an industrial setting, designed to ensure consistent quality, safety, and efficiency while serving as a baseline for continuous improvement and adaptability.
Procedures
Documented, standardized steps that guide workers in performing tasks safely and efficiently, ensuring consistency, regulatory compliance, and quality across operations.
Process
A systematic sequence of operations that transforms inputs into desired outputs, with standardized steps.
Process failure
The breakdown or deviation from established procedures that results in unintended, unsafe, or inefficient outcomes, often exposing vulnerabilities in system design and controls.
Production
The systematic process of transforming raw materials into finished products through standardized operations that prioritize efficiency, quality, and safety.
Production pressure
The drive to meet output targets and deadlines sometimes leading to compromises in safety and often showing system brittleness.
Provocative error-trap
A design or process flaw in an industrial system that inadvertently encourages operators to make an error by triggering misleading cues or ambiguous instructions, thereby increasing the risk of error.
Punishment
The imposition of penalties for non-compliance with established procedures, typically intended to enforce discipline but which can hinder learning and adaptation by focusing on retribution rather than addressing underlying system issues.
Quality miss
Failure to meet established quality standards or specifications in a product, process, or servic
Reason, James
Professor at University of Manchester, discusses principles of error management and is quoted as saying: ‘You cannot change the human condition, but you can change the conditions in which humans work.
Red line
The ever present inherent risk in work.
Reliability
The consistent performance of a system over time, recognizing that while machines can maintain steady outputs, human operators often exhibit variability—especially during repetitive tasks—which can lead to errors and requires systems designed to accommodate these inherent limitations.
Resilience
The capacity of a system and its people to adapt, recover, and continue operating safely amid unexpected disruptions and variability, acknowledging human limitations while harnessing adaptive strengths.
Robot test
A procedural evaluation method where a task is executed in a step-by-step, algorithmic manner—as if by a robot—to assess whether the written procedure is clear, complete, and robust enough to be followed without ambiguity.
Root cause
Fundamental underlying system or process deficiency that, when addressed, prevents the recurrence of a defect or incident.
Rule
A formal directive intended to ensure safe, consistent operations in industrial settings.
Sabotage
The deliberate act of undermining or damaging equipment, processes, or systems, often driven by personal grievances or misalignment with organizational values.
Sense-making model
A tool or framework that helps people or teams make sense of information, observations, or situations.
Sigma
A statistical measure used in industrial quality control that quantifies process variability and error rates
Six Sigma
A data-driven methodology aimed at reducing process variability and defects to near-perfection
Soldiering
The deliberate act of workers reducing their output or slowing their work pace—often as a response to rigid, efficiency-driven management practices rooted in Taylorism.
Solution sets
Collections of viable remedial actions or strategies designed to address operational challenges, improve system performance, and enhance safety by offering multiple options that can be tailored to specific conditions and constraints.
SOP (Standard operating procedures)
Documented, step-by-step instructions designed to standardize routine tasks and processes, ensuring consistent, safe, and efficient performance.
Standard work
Documented, repeatable method for executing tasks in an industrial setting, designed to ensure consistent quality, safety, and efficiency while serving as a baseline for continuous improvement and adaptability.
Stop work
An industrial safety protocol empowering workers to immediately halt operations when they identify an unmitigated hazard or procedural deviation.
Strategic thinking
The process of developing long-term plans that realistically account for human limitations—recognizing that errors and variability are inherent—and incorporating safeguards and contingencies, unlike wishful thinking that assumes flawless, high-performance behavior.
Success
The ability of a system to effectively adapt, recover, and learn from human error and unforeseen challenges, ensuring safe and continuous improvement rather than simply the absence of failures.
System brittleness
The susceptibility of a system or process to failure or significant disruption when faced with unexpected events, deviations, or stresses.
System error
Failures or vulnerabilities inherent in the design, processes, or technology of a system that create conditions for incidents.
System improvement
The process of enhancing the efficiency, effectiveness, reliability, and overall performance of a system or process.
System influences
The broad array of organizational, technical, and environmental factors—such as management practices, workplace culture, equipment design, and operational conditions—that collectively shape performance, risk, and outcomes in industrial systems.
System problem
An inherent flaw or weakness in organizational structures, processes, or technology that creates conditions for error and adverse outcomes, emphasizing that issues are rooted in the system rather than in individual performance.
System weakness
An inherent vulnerability or flaw in an industrial process, design, or infrastructure that can compromise performance and safety.
Systemic issues
A deep-rooted problem embedded in an organization's processes, culture, or structures that affects multiple aspects of operations and requires comprehensive, system-wide changes rather than isolated fixes.
Systemic success
The holistic achievement of reliable, resilient, and safe performance across all levels of an organization, where integrated processes, continuous improvement, and adaptive practices ensure that the entire system thrives even in the face of complexity and change.
Taloristic mindset
A top-down approach that assumes managers know best, undervalues worker input, and treats workers as tools rather than thinkers.
Taylor, Fredrick Winslow
Management theory developer in the early 20th century, who emphasized efficiency and productivity through standardized tasks and close supervision. See Taylorism
Taylorism
(Slang): an industrial mindset where workers are seen as lacking intellect or morals, leading to the belief that planners and managers are better suited to make decisions. Information flows top-down with little input from hands-on workers.
Third shift
A work shift that typically covers the late night to early morning hours.
Traffic flow
The organized movement of personnel, forklifts, and materials throughout the facility.
Trystorm
Used as a synonym for brainstorming—emphasizing the active testing and validation of ideas rather than just generating them.
Turn around
A planned period of downtime in industrial operations, typically for maintenance, inspection, and repair of equipment and facilities.
Weaponize
To deliberately use established procedures as tools of control or punishment.
'When' scenario
A proactive planning mindset in HOP that assumes accidents are inevitable, shifting the focus from questioning if an incident will occur to preparing for when it happens through robust design, prevention, and mitigation strategies.
Wishful thinking
The reliance on overly optimistic assumptions that systems and human performance will operate flawlessly without accounting for inherent human fallibility, natural brain function, and the variability of day-to-day operations.
Worker
A frontline operator.