Model-Based Systems Eng. & Requirements Definition • Dennis Hansen & Jorge Orellana

About this episode

This interview was recorded for the GOTO Book Club. http://gotopia.tech/bookclub Dennis Hansen - Air Force Veteran, Chief Systems Engineer & Author of "Model-Based Systems Engineering and Requirements Definition" Jorge Orellana - Model Based Systems Engineer at IERUS Technologies & CEO & Founder at SCATTERBRAINS Check out more here: https://gotopia.tech/episodes/445 RESOURCES Jorge https://www.linkedin.com/in/jorge-orellana-0b729129 DESCRIPTION Dennis Hansen brings over six decades of systems engineering experience to this GOTO Book Club conversation — from Air Force airborne navigation technician to Chief Systems Engineer at L3Harris on programs including the complete rebuild of the GOES-R ground system for NOAA and NASA. His book argues that the fundamental failure mode in complex system development is the same every time: requirements are defined too loosely, too late, or across multiple model layers simultaneously. He structures the approach using an onion model — a layering framework he was taught by a Motorola engineer in 1961 — where each layer (mission, capabilities, activities, technical requirements, specifications) must be completed before the next is begun. Skipping