ISO 13849 workflow from hazard identification and risk assessment to safety function, required Performance Level, verification and validation

ISO 13849 Explained – Functional Safety of Machinery

By

ISO 13849 Explained – Functional Safety of Machinery Modern machinery relies heavily on electrical, electronic, pneumatic, hydraulic, and programmable control systems. These systems improve productivity and automation, but they also introduce risks when failures can lead to hazardous machine behavior. A robot that fails to stop when an operator enters its workspace, a press that …

ISO 13849 Explained – Functional Safety of Machinery Read More »

Overview of ARP4754B Chapter 5 showing the Integral Processes supporting aircraft and system development

ARP4754B Chapter 5 Explained – Integral Processes

By

ARP4754B Chapter 5 Explained – Integral Processes Developing safe and certifiable aircraft requires more than following a structured development process. Throughout the aircraft lifecycle, several engineering activities continuously support development by ensuring that safety objectives are achieved, requirements remain traceable, verification is performed correctly, and development artifacts are properly controlled. These activities are known as …

ARP4754B Chapter 5 Explained – Integral Processes Read More »

Overview of ARP4754B Chapter 4 showing the Aircraft and System Development Process from requirements to system verification

ARP4754B Chapter 4 Explained – Aircraft and System Development Process

By

ARP4754B Chapter 4 Explained – Aircraft and System Development Process Modern aircraft are among the most complex engineering systems ever developed. Thousands of interconnected functions, hardware components, software applications, and human interactions must work together reliably while meeting strict safety and certification requirements. Managing this complexity requires a structured systems engineering process. This is the …

ARP4754B Chapter 4 Explained – Aircraft and System Development Process Read More »

Overview of ARP4754B Chapter 3 showing the Development Assurance Planning Process, Development Assurance Plan, and Certification Authority Coordination

ARP4754B Chapter 3 Explained – Development Assurance Planning

By

ARP4754B Chapter 3 Explained – Development Assurance Planning Aircraft development projects involve thousands of requirements, numerous engineering teams, and strict certification expectations. Without a structured planning process, maintaining consistency, traceability, and compliance throughout the project quickly becomes a challenge. This is why Chapter 3 of SAE ARP4754B focuses on Development Assurance Planning. Before detailed design …

ARP4754B Chapter 3 Explained – Development Assurance Planning Read More »

Overview of ISO 26262 Part 9 showing ASIL tailoring, coexistence of elements, dependent failure analysis, and safety analyses

ISO 26262 Part 9 Explained – ASIL-Oriented and Safety-Oriented Analyses

By

ISO 26262 Part 9 Explained – ASIL-Oriented and Safety-Oriented Analyses Developing a safety-critical automotive system requires more than defining safety requirements and implementing safety mechanisms. Engineers must also demonstrate that the chosen safety architecture is sufficiently robust, that redundant elements remain independent, and that potential failure mechanisms have been systematically analyzed. This is the purpose …

ISO 26262 Part 9 Explained – ASIL-Oriented and Safety-Oriented Analyses Read More »

Overview of ISO 26262 Part 8 showing the supporting processes including configuration management, change management, documentation, software tools, and component qualification

ISO 26262 Part 8 Explained – Supporting Processes

By

ISO 26262 Part 8 Explained – Supporting Processes Developing a functionally safe vehicle requires much more than system, hardware, and software engineering. Throughout the development lifecycle, numerous supporting activities ensure that requirements remain traceable, changes are controlled, tools are trustworthy, and safety evidence is properly managed. This is the purpose of ISO 26262 Part 8 …

ISO 26262 Part 8 Explained – Supporting Processes Read More »

Overview of ISO 26262 Part 7 showing planning, production, operation, service, and decommissioning across the complete vehicle lifecycle

ISO 26262 Part 7 Explained – Production, Operation, Service and Decommissioning

By

ISO 26262 Part 7 Explained – Production, Operation, Service and Decommissioning Functional Safety does not end when a vehicle leaves the development department. Even after system, hardware, and software development have been completed, safety must be maintained throughout production, vehicle operation, servicing, maintenance, and ultimately decommissioning. This is the focus of ISO 26262 Part 7 …

ISO 26262 Part 7 Explained – Production, Operation, Service and Decommissioning Read More »

Overview of ISO 26262 Part 6 showing Software Safety Requirements, Software Architecture, Software Unit Design, Software Verification, and Software Integration Testing

ISO 26262 Part 6 Explained – Product Development at the Software Level

By

ISO 26262 Part 6 Explained – Product Development at the Software Level Software has become the defining element of modern vehicles. From braking and steering to battery management, powertrain control, and advanced driver assistance systems (ADAS), software now performs many of the functions that directly influence vehicle safety. As software complexity continues to increase, so …

ISO 26262 Part 6 Explained – Product Development at the Software Level Read More »

Overview of ISO 26262 Part 5 showing Hardware Safety Requirements, Hardware Design, Hardware Architectural Metrics, Random Hardware Failure Evaluation, and Hardware Verification

ISO 26262 Part 5 Explained – Product Development at the Hardware Level

By

ISO 26262 Part 5 Explained – Product Development at the Hardware Level Modern vehicles rely on highly complex electronic hardware to perform safety-critical functions such as braking, steering, battery management, and advanced driver assistance. To ensure that these systems remain safe even in the presence of hardware failures, automotive engineers must follow a structured hardware …

ISO 26262 Part 5 Explained – Product Development at the Hardware Level Read More »

Overview of ISO 26262 Part 4 showing General Topics, Technical Safety Concept, System Integration and Testing, and Safety Validation

ISO 26262 Part 4 Explained – Product Development at the System Level

By

ISO 26262 Part 4 Explained – Product Development at the System Level Developing a safe automotive system requires much more than implementing safety mechanisms in hardware or software. Before detailed development begins, engineers must translate high-level safety objectives into a structured system architecture that ensures Functional Safety throughout the vehicle lifecycle. This is the purpose …

ISO 26262 Part 4 Explained – Product Development at the System Level Read More »

Shopping Cart
Cookie Consent with Real Cookie Banner