Author name: AlexanderWalter

Functional Hazard Assessment process including hazard identification severity classification and safety objectives

FHA Explained (ARP4761A) – Functional Hazard Assessment in Aerospace

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FHA Explained (ARP4761A) – Functional Hazard Assessment in Aerospace Safety assessment is one of the most important activities in aerospace engineering. Modern aircraft systems are highly integrated and rely on complex interactions between software, hardware, avionics, sensors, and communication systems. Understanding how failures can affect aircraft operation is essential for ensuring safety and supporting certification …

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Comparison of ARP4761A aerospace safety assessment and HARA automotive functional safety analysis

ARP4761A vs HARA – Aerospace vs Automotive Safety Analysis

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ARP4761A vs HARA – Aerospace vs Automotive Safety Analysis Safety-critical industries all aim to achieve the same goal: preventing unacceptable risks and ensuring safe system behavior. However, the methods used to achieve this goal can differ significantly depending on the industry and regulatory environment. In aerospace engineering, ARP4761A defines the safety assessment methods used to …

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ARP4761A Explained – Safety Assessment in Aerospace

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ARP4761A Explained – Safety Assessment in Aerospace Safety is one of the most critical aspects of aerospace engineering. Modern aircraft rely on highly integrated systems where failures can have severe consequences. Ensuring that these systems operate safely requires systematic safety assessment processes that are integrated throughout development. ARP4761A provides the framework used in aerospace engineering …

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ARP4754B aircraft system development lifecycle including requirements architecture validation and verification

ARP4754B Explained – Aircraft System Development

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ARP4754B Explained – Aircraft System Development Modern aircraft are among the most complex engineering systems ever built. They combine software, hardware, avionics, communication systems, sensors, and highly integrated architectures that must operate reliably under strict safety requirements. Developing these systems requires more than technical expertise alone. It requires structured development processes, clear traceability, and systematic …

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DO-178C software development and verification process for aircraft systems

DO-178C Explained – Software Certification for Aircraft

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DO-178C Explained – Software Certification for Aircraft Software plays a critical role in modern aircraft. From flight control systems to navigation and communication, many essential functions depend on reliable and predictable software behavior. Unlike conventional software, aviation software must meet extremely strict safety and certification requirements. DO-178C defines the framework used to develop and certify …

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integration of ISO 13485 with ISO 14971 and IEC 62304 in medical device development

ISO 13485 Explained – Quality Management in Medical Devices

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ISO 13485 Explained – Quality Management in Medical Devices Quality management is a fundamental requirement in medical device development. Companies must ensure that their products are consistently safe, effective, and compliant with regulatory expectations. ISO 13485 defines the quality management system (QMS) that organizations must implement to achieve this. It provides the framework for managing …

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IEC 62304 Explained – Software Lifecycle in Medical Devices

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IEC 62304 Explained – Software Lifecycle in Medical Devices Software plays a central role in modern medical devices. From diagnostic tools to life-supporting systems, software is often responsible for critical functionality. Ensuring that this software is developed in a safe and controlled way is essential. IEC 62304 defines the required software lifecycle processes for medical …

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ISO 14971 risk management process for medical devices including hazard identification and risk control

ISO 14971 Explained – Risk Management in Medical Devices

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ISO 14971 Explained – Risk Management in Medical Devices Risk management is one of the most critical aspects of medical device development. Every device, from simple tools to complex software-driven systems, must be safe for patients and users. ISO 14971 defines the structured process used to identify hazards, analyze risks, and implement effective control measures …

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Medical device standards overview showing ISO 14971, IEC 62304 and ISO 13485

Medical Device Standards Explained – How ISO 14971, IEC 62304 & ISO 13485 Work Together

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Medical Device Standards Explained How ISO 14971, IEC 62304 & ISO 13485 Work Together Medical device development is one of the most highly regulated engineering domains. Unlike many other industries, safety, quality, and software development are governed by strict standards that must work together seamlessly. Three of the most important standards are: ISO 14971 – …

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comparison between SOTIF ISO 21448 and ISO 26262 showing performance limitations versus system failures in automotive safety

SOTIF Explained – Safety of the Intended Functionality (ISO 21448)

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SOTIF Explained – Safety of the Intended Functionality (ISO 21448) Why SOTIF Matters in Modern Automotive Systems Modern vehicles increasingly rely on advanced driver assistance systems (ADAS) and autonomous functions. These systems use sensors, algorithms, and artificial intelligence to interpret their environment and make decisions. However, this introduces a new type of risk: What happens …

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