Book Image

Agile Model-Based Systems Engineering Cookbook

By : Dr. Bruce Powel Douglass
Book Image

Agile Model-Based Systems Engineering Cookbook

By: Dr. Bruce Powel Douglass

Overview of this book

Agile MBSE can help organizations manage constant change and uncertainty while continuously ensuring system correctness and meeting customers’ needs. But deploying it isn’t easy. Agile Model-Based Systems Engineering Cookbook is a little different from other MBSE books out there. This book focuses on workflows – or recipes, as the author calls them – that will help MBSE practitioners and team leaders address practical situations that are part of deploying MBSE as part of an agile development process across the enterprise. Written by Dr. Bruce Powel Douglass, a world-renowned expert in MBSE, this book will take you through important systems engineering workflows and show you how they can be performed effectively with an agile and model-based approach. You’ll start with the key concepts of agile methods for systems engineering, but we won’t linger on the theory for too long. Each of the recipes will take you through initiating a project, defining stakeholder needs, defining and analyzing system requirements, designing system architecture, performing model-based engineering trade studies, all the way to handling systems specifications off to downstream engineering. By the end of this MBSE book, you’ll have learned how to implement critical systems engineering workflows and create verifiably correct systems engineering models.
Table of Contents (8 chapters)

Computable constraint modeling

Mathematics isn't just fun, it's also another means by which you can verify aspects of systems. For example, in the Architectural trade studies recipe in Chapter 3, Developing System Architectures, we created a mathematical model to evaluate design alternatives as a set of equations, converting raw properties – including measurement accuracy, mass, reliability, parts costs, and rider feel – into a computed "goodness" metrics for the purpose of comparison. Using trade studies is a way to verify that good design choices were made. We did this using SysML constraints and parametrics diagrams to render the problem and "do the math."

Math can address many problems that come up in engineering, and SysML parametric diagrams provide a good way to cast, compute, and render such problems and their solutions. An archetypal example is computing the total weight of a system. This can be done by simply summing up the...