Failure related in a deterministic way to a certain cause, which can only be eliminated by a modification of the design or of the manufacturing process, operational procedures, documentation, or other relevant factors. Acronyms & Terms Glossary <- More Definitions Systematic Failure Failure related in a deterministic way to a certain cause, which can only be eliminated by a modification of the design or of the manufacturing process, operational procedures, documentation, or other relevant factors. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

aeSolutions is the Go-To Partner for Our Clients' Tough Challenges - Innovative, Sustainable Sservices to Create Client Value - Professional Project Management to Drive Client Business Results - Consistent Performance and Delivery on Our Commitments from our service - line card of our serivces - Breakdown - clients Services We Offer Automation Conceptual & Preliminary Engineering (FEL/FEED) FD/P&ID Development Control System Platform Evaluation Continuous and Batch Design TIC Estimate Development Instrument and Electrical Design (l&E) Instrument Index, Specs & Installation Details Plan Drawings Controls Electrical - Field Wiring {Loop Sheets, Elementaries, etc.) MCC Specification & Design Cable Schedules Construction SOWs Systems Integration Control Hardware Design Control System Server Virtualization Network Architecture Layout/ Design PLC, DCS, SIS, SCADA Configuration Control Panel Fabrication & Testing Construction Oversight Commissioning/Startup Support Learn More SIS Engineering ISA 61511 Safety Lifecycle Planning Design and Verification Safety Requirement Specification (SRS) Protection Layer Requirements Specification Cause & Effect Diagrams Functional Test Plans Lifecycle Cost Analysis Safety Integrity Level (SIL) Calculations Functional Safety Assessment (FSA) Fault Tree Analysis Event Tree Analysis Reliability Data Analysis Learn More Alarm Management Alarm Philosophy Development Consulting and Facilitation for ISA 18.2: Philosophy Rationalization Operations (Training) Audits Learn More Machinery Safety Compliance with Safety Standards at Manufacturing Sites (OSHA, ANSI, ISO) Risk Assessment State of Conformity Safeguard Specifications Training Learn More Combustion Combustion Control Solutions (CCS) Fuel & Waste Optimization Combustion Optimization Availability/ Reliability Assessments Burner Management Systems (BMS) NFPA/API Code Compliance Screening Surveys Gap Assessments Gap Closur e Options/ Scoping PSM and SIL Rated BMS Risk-Based {PHA/LOPA) Assessments Code Equivalent Design Alternative Design of BMS/CCS AHJ Approval Consulting SIS Engineering Multidiscipline Project Execution Front End Loading "Outside the Box" System Design {l&E) Systems Integration {BMS, CCS) Fuel Trains Construction Scoping/ Management Commissioning/ Startup Support Annual Testing Learn More Process Safety Process Safety Management (PSM) Risk Management Program (RMP) PSM/RMP/RBPS Auditing PHA/HAZOP/LOPA/QRA/CHAZOP Procedural/Extreme Weather/ Abnormal Event PHAs Facility Siting PHAST/CFD Modeling Gas Dispersion Modeling Gas Sensor Mapping Human Reliability Analysis (HRA) Training Process Safety Overview PSM/RMP Auditor PHA/LOPA Facilitator Independent Protection Layer Verification Mechanical Integrity Programs Electrical Area Classification Combustible Dust Hazard Assessments Learn More Fire & Gas NFPA 72 and Life Safety Code Compliance Fire and Gas Panel Design FM Listed Systems FM Approved Large Battery Backup Systems FGS System Construction Package CFO, Dispersion, Gas & Flame Detector Coverage Modeling Gas Detection Philosophy Detector Placement Startup and Commissioning Fire Marshall Package Learn More Why aeSolutions? Trusted Go-To Partner for Our Cli ents' Tough Challenges Innovative, Sustainable Solutions to Create Client Value Professional Project Management to Drive Client Business Results Consistent Performance and Delivery on Our Commitments Recognized Extensively Credentialed Professionals (PE, CFSE, PMP) Active in Leadership of Professional Organizations (ISA, AIChE, CSIA) Involved in Development of International Standards & Industry Best Practices Deep Technical Acumen, Thought Leadership

NFPA 87 is the standard from the National Fire Protection Association that provides safety guidance for fluid heaters and related equipment to minimized fire and explosion hazards that can endanger the equipment, building, or personnel. A piece of equipment is considered to be a fluid heater if it includes any of the following features: fluid is flowing under pressure, fluid is indirectly heated, and/or a release of energy from combustion of a fuel or an electrical source occurs within the unit. Acronyms & Terms Glossary <- More Definitions NFPA 87 NFPA 87 is the standard from the National Fire Protection Association that provides safety guidance for fluid heaters and related equipment to minimized fire and explosion hazards that can endanger the equipment, building, or personnel. A piece of equipment is considered to be a fluid heater if it includes any of the following features: fluid is flowing under pressure, fluid is indirectly heated, and/or a release of energy from combustion of a fuel or an electrical source occurs within the unit. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

An organization that implemented Section 112(r) of the 1990 Clean Air Act amendments and requires facilities that use extremely hazardous substances to develop a Risk Management Plan (RMP) per 40 CFR 68.150 to 68.185. aeSolutions has the knowledge and experience to assist with all elements of RMP development and implementation required by the EPA RMP Standard, 40 CFR 68, from high level gap and applicability assessments to complete RMP site program development, including drafting procedures and creating mechanical integrity programs. Acronyms & Terms Glossary <- More Definitions Environmental Protection Agency (EPA) An organization that implemented Section 112(r) of the 1990 Clean Air Act amendments and requires facilities that use extremely hazardous substances to develop a Risk Management Plan (RMP) per 40 CFR 68.150 to 68.185. aeSolutions has the knowledge and experience to assist with all elements of RMP development and implementation required by the EPA RMP Standard, 40 CFR 68, from high level gap and applicability assessments to complete RMP site program development, including drafting procedures and creating mechanical integrity programs. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

The probability that a system will fail to perform a specified function on demand (i.e., when challenged or needed). Independent Protection Layers (IPLs) are assigned a PFD based on industry or site-specific data. Refer to Safety Integrity Level (SIL) Calculations and Risk Reduction Factor definition. Acronyms & Terms Glossary <- More Definitions Probability of Failure on Demand (PFD) The probability that a system will fail to perform a specified function on demand (i.e., when challenged or needed). Independent Protection Layers (IPLs) are assigned a PFD based on industry or site-specific data. Refer to Safety Integrity Level (SIL) Calculations and Risk Reduction Factor definition. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

Software and hardware that allows human operators to monitor the state of a process under control, modify control settings to change the control objective, and manually override automatic control operations in the event of an emergency. The HMI also allows a control engineer or operator to configure set points or control algorithms and parameters in the controller. The HMI also displays process status information, historical information, reports, and other information to operators, administrators, managers, business partners, and other authorized users. Operators and engineers use HMIs to monitor and configure set points, control algorithms, send commands, and adjust and establish parameters in the controller. aeSolutions designs and configures human machine interfaces for control and safety systems. HMI varieties range from DCS vendors' hefty client-server systems to small touch screens engineered with special purpose panels. aeSolutions also develops alarm management philosophies which include HMI design guidance; a facility's various alarms and alert states are properly managed and prioritized to help operators maintain situational awareness. Acronyms & Terms Glossary <- More Definitions Human Machine Interface (HMI) Software and hardware that allows human operators to monitor the state of a process under control, modify control settings to change the control objective, and manually override automatic control operations in the event of an emergency. The HMI also allows a control engineer or operator to configure set points or control algorithms and parameters in the controller. The HMI also displays process status information, historical information, reports, and other information to operators, administrators, managers, business partners, and other authorized users. Operators and engineers use HMIs to monitor and configure set points, control algorithms, send commands, and adjust and establish parameters in the controller. aeSolutions designs and configures human machine interfaces for control and safety systems. HMI varieties range from DCS vendors' hefty client-server systems to small touch screens engineered with special purpose panels. aeSolutions also develops alarm management philosophies which include HMI design guidance; a facility's various alarms and alert states are properly managed and prioritized to help operators maintain situational awareness. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

To (dis)connect wires. Acronyms & Terms Glossary <- More Definitions (De)terminate To (dis)connect wires. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

Reliability Centered Maintenance (RCM) is a structured approach to determining the most effective maintenance strategies for a system or equipment. RCM focuses on maintaining system functionality and preventing failures based on reliability data and analysis. Acronyms & Terms Glossary <- More Definitions Reliability Centered Maintenance (RCM) Reliability Centered Maintenance (RCM) is a structured approach to determining the most effective maintenance strategies for a system or equipment. RCM focuses on maintaining system functionality and preventing failures based on reliability data and analysis. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

The architecture or voting arrangment used in the field instrument or final control element of a safety instrumented system (SIS) to reach a certain safety integrity level (SIL). Voting logics include one-out-of-one (1oo1), 1oo2, 2oo2, 2oo3, etc. For example, a 2oo2 voting logic indicates there are two protective devices/instruments in a system and both devices (two-out-of-two) are needed to properly shut down the system or mitigate the hazard. 1oo2 indicates that only one of the devices would be required to properly prevent the situation from occurring. Acronyms & Terms Glossary <- More Definitions Voting Logic The architecture or voting arrangment used in the field instrument or final control element of a safety instrumented system (SIS) to reach a certain safety integrity level (SIL). Voting logics include one-out-of-one (1oo1), 1oo2, 2oo2, 2oo3, etc. For example, a 2oo2 voting logic indicates there are two protective devices/instruments in a system and both devices (two-out-of-two) are needed to properly shut down the system or mitigate the hazard. 1oo2 indicates that only one of the devices would be required to properly prevent the situation from occurring. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

The Risk Reduction Factor (RRF) is the inverse of PFD (RRF = 1/PFD) and is used to establish the associated Safety Integrity Level (SIL) rating required for a Safety Instrumented Function (SIF) to reduce the hazard risk to an acceptable risk tolerance level. Once a Process Hazard Analysis (PHA) has been completed and Independent Protection Layers (IPL) have been applied, any SIF that serves as an IPL must have an established RRF. Over-specification of devices to be used in a SIF is not uncommon because it is a SAFETY Instrumented Function. However, over-specification does not necessarily improve safety significantly and can reduce the resources available for overall safety. aeSolutions can help you identify the best devices to use in SIFs and assist you in the purchasing process. Acronyms & Terms Glossary <- More Definitions Risk Reduction Factor (RRF) The Risk Reduction Factor (RRF) is the inverse of PFD (RRF = 1/PFD) and is used to establish the associated Safety Integrity Level (SIL) rating required for a Safety Instrumented Function (SIF) to reduce the hazard risk to an acceptable risk tolerance level. Once a Process Hazard Analysis (PHA) has been completed and Independent Protection Layers (IPL) have been applied, any SIF that serves as an IPL must have an established RRF. Over-specification of devices to be used in a SIF is not uncommon because it is a SAFETY Instrumented Function. However, over-specification does not necessarily improve safety significantly and can reduce the resources available for overall safety. aeSolutions can help you identify the best devices to use in SIFs and assist you in the purchasing process. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

Simultaneous occurrence of two or more independent, revealed (overt) failures in a system. Double jeopardy is considered during Process Hazard Analyses (PHAs) conducted by aeSolutions' trained facilitators. PHAs help companies identify hazard scenarios that could lead to a release of highly hazardous chemicals that can cause negative impact on people, the environment, and property. Acronyms & Terms Glossary <- More Definitions Double Jeopardy Simultaneous occurrence of two or more independent, revealed (overt) failures in a system. Double jeopardy is considered during Process Hazard Analyses (PHAs) conducted by aeSolutions' trained facilitators. PHAs help companies identify hazard scenarios that could lead to a release of highly hazardous chemicals that can cause negative impact on people, the environment, and property. Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.

Human factors is a common term given to the widely-recognized discipline of addressing interactions in the work environment between people, a facility, and its management systems. Human factors focuses on interface of people with the process and its impact on system operation, identifying factors that increase the likelihood of human error (due to stress, overload, inadequate or lack of a training, ambiguity of PSI documentation, etc.). Acronyms & Terms Glossary <- More Definitions Human Factors Human factors is a common term given to the widely-recognized discipline of addressing interactions in the work environment between people, a facility, and its management systems. Human factors focuses on interface of people with the process and its impact on system operation, identifying factors that increase the likelihood of human error (due to stress, overload, inadequate or lack of a training, ambiguity of PSI documentation, etc.). Our Services Whitepaper: The Courage to Intervene | Developing Ethical Leadership in the Next Generation of Process Safety Professionals As the process industries experience the “great shift change,” developing the next generation of leaders requires more than technical competence. It demands ethical courage and the ability to influence others to uphold process safety under pressure. This paper explores how ethical decision-making and leadership behaviors can be intentionally developed through structured case-based learning derived from real engineering failures. aeSolutions Recognized with 2026 CSIA Social Responsibility Award aeSolutions is proud to share that we were recognized with the 2026 Social Responsibility Award at the 2026 CSIA Awards, held during the Control System Integrators Association Conference in Baltimore, Maryland. Whitepaper: Six Feet Under | How to Dig Yourself Out of a Recommendations Graveyard Have you felt buried under six feet of safety study recommendations that must be closed? Does it feel impossible to follow Recognized and Generally Accepted Good Engineering Practices (RAGAGEPs) to convert recommendations into engineered design reality? You are not alone.