Airborne Electronic Hardware Design Assurance

Written by an FAA consultant DER and an electronics hardware design engineer, this practical guide to the use of RTCA/DO-254 in the development of airborne electronic hardware for safety critical airborne applications describes how to optimize engineering processes and practices to harmonize with DO-254. It also discusses common pitfalls encountered by practitioners of DO-254, explains how to write requirements that will minimize the cost and effort of electronic design and verification, and promotes embracing DO-254 as the best path to high-quality airborne electronic hardware.

"Preface This book was inspired by, and evolved from, the experience we gained while teaching the DO-254 class at RTCA in Washington, D.C. and at numerous companies throughout the United States and abroad. In some respects it is the logical extension of our DO-254 class, and in fact some of the material in this book shares common origins. Most of this book, however, is a testimony of the lessons learned and wisdom gained from many years of first-hand experience in the design, verification, and approval of airborne electronics and software, including some of the very first projects in which DO-254 was applied, and also including the very first projects where DO-254 was applied at the LRU level. The early years of DO-254 were seminal to us for revealing not only the difficulties inherent in applying a comprehensive document like DO-254 to a very narrow target, but also for the labor pains endemic throughout the industry as it struggled to understand--let alone comply with--this new way of doing business. Pain is a hard but effective teacher, so by any measure those of us who experienced those years should be geniuses by now. As we and the rest of the industry adjusted and eventually mastered both the document and its ramifications, we were able to discern the practices and techniques that complemented the processes in DO-254 and therefore worked best in this new environment. This book documents the practices and techniques that we have identified and witnessed as being compatible with the intent of DO-254,and which thus make the road to compliance and eventual approval as direct, efficient, and effective as possible"--

"This book, depicting the art of RTCA/DO-254 design assurance using the novel practitioner's approach, is based on the authors' and industry feedback, experiences, and lessons learned. Precise explanations ... provide efficient and clear guidelines directly applicable to appropriate engineering methodologies in defining, creating, and testing complex digital circuits for use in safety critical aircraft systems. ... The book's structure, mixing adequate regulatory needs accompanied with explanations and real examples, can be read with ease. The clear chaptering covers chronologically the aircraft electronic hardware lifecycle execution from planning to deployment, including configuration management and process assurance. Thus the reader can swiftly access material of interest, as chapters can easily be related to the well-known 'V-model' development process. ... [Readers of this book will] learn how to comply with Federal Aviation Regulations and RTCA/DO-254, and gain insight into engineering best practices for airborne electronic hardware design assurance. Requirement capture techniques are applied and demonstrated through examplesa first in this type of technical literature. ... A very high-level writing style is found across all sections of the book. This book shall be considered as 'the reference' when designing safety critical aircraft systems. ... A tremendous book, setting founding grounds to be used by engineers, managers, and students involved or interested in airworthiness hardware certification and aiming to reduce cost, effort, re-work, and deployment schedules."Dr. Patrick Mejasson, Thales Avionics, Paris, France "With a combined total of over 70 years of experience, Randall Fulton and Roy Vandermolen are veterans in aviation certification and airborne electronic hardware (AEH) development. Based on their vast and varied experience, they provide crucial information necessary to successfully manage, develop, and verify AEH. Reading this book is like sitting in a classroom with expert and battle-tested instructors. The concepts of AEH development, design, validation, and verification are clearly explained and illustrated. This book explains both the 'why' and the 'how' of critical concepts related to DO-254 compliance. Additionally, the material is written at a level that is practical for systems engineers, managers, and hardware engineers."Leanna Rierson, Digital Safety Consulting, Wichita, Kansas, USA "The succinct manner in which the requirements development methodology is captured is worth the price of the book. provides a great reference for evaluating requirements development processes and standards."Jeff Knickerbocker, Sunrise Certification and Consulting, Inc., Winfield, Kansas, USA

Autorentext

Randall Fulton has more than 36 years of electrical engineering experience in software and electronic hardware development and verification. He holds a BS from the Pennsylvania State University and earned his FAA DER credentials in software and programmable logic devices while working at Boeing Commercial Aircraft. As a DER, he has had approval authority for programmable logic devices since 1997 and has worked numerous Part 23 and Part 25 certification programs with field programmable gate arrays, ASIC, and software. Randall, along with Roy Vandermolen, taught the DO-254 practitioners course for RTCA in Washington, DC from 2006 to 2009. Randall has also taught the Airborne Electronic Hardware Job Functions class for the FAA Academy in Oklahoma City. He currently works as an FAA consultant DER through his company SoftwAir Assurance, Inc.

Roy Vandermolen is an electronics design engineer with more than 35 years of experience ranging from vacuum tubes to programmable logic devices, but has spent the majority of that time designing and verifying programmable logic devices and the circuit cards that employ them. Roy holds a BS from the Massachusetts Institute of Technology, and is currently a staff engineer and certification manager for electronic flight control systems at Moog Aircraft and an airborne electronics hardware OBAR for Boeing Commercial Aircraft. Roy has worked in a variety of research laboratories, educational institutions, military R&D facilities, and commercial aircraft flight controls manufacturers. At Moog Aircraft, Roy has been involved in the design, verification, and certification of numerous Level A flight control systems. Roy, along with Randall Fulton, taught the DO-254 practitioners course for RTCA in Washington, DC from 2006 to 2009.

Zusammenfassung

Written by a Federal Aviation Administration (FAA) consultant designated engineering representative (DER) and an electronics hardware design engineer who together taught the DO-254 class at the Radio Technical Commission for Aeronautics, Inc. (RTCA) in Washington, District of Columbia, USA, Airborne Electronic Hardware Design Assurance: A Practitioner's Guide to RTCA/DO-254 is a testimony to the lessons learned and wisdom gained from many years of first-hand experience in the design, verification, and approval of airborne electronic hardware.

This practical guide to the use of RTCA/DO-254 in the development of airborne electronic hardware for safety critical airborne applications:

• Describes how to optimize engineering processes and practices to harmonize with DO-254
• Addresses the single most problematic aspect of engineering and compliance to DO-254poorly written requirements
• Includes a tutorial on how to write requirements that will minimize the cost and effort of electronic design and verification
• Discusses the common pitfalls encountered by practitioners of DO-254, along with how those pitfalls occur and what can be …