Book Image

Agile Model-Based Systems Engineering Cookbook Second Edition - Second Edition

By : Dr. Bruce Powel Douglass
Book Image

Agile Model-Based Systems Engineering Cookbook Second Edition - Second Edition

By: Dr. Bruce Powel Douglass

Overview of this book

Agile MBSE can help organizations manage change while ensuring system correctness and meeting customers’ needs. But deployment challenges have changed since our first edition. The Agile Model-Based Systems Engineering Cookbook’s second edition focuses on workflows – or recipes – 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. In this 2nd edition, the Cameo MagicDraw Systems Modeler tool – the most popular tool for MBSE – is used in examples (models are downloadable by readers). Written by a world-renowned expert in MBSE, this book will take you through systems engineering workflows in the Cameo Systems Modeler SysML modeling tool and show you how they can be used with an agile and model-based approach. You’ll start with the key concepts of agile methods for systems engineering. Next, each recipe will take you through initiating a project, outlining stakeholder needs, defining and analyzing system requirements, specifying 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 learn how to implement systems engineering workflows and create systems engineering models.
Table of Contents (9 chapters)
6
Other Books You May Enjoy
7
Index
Appendix A: The Pegasus Bike Trainer

Creating the Logical Data Schema

A big part of the specification of systems is specifying the inputs and outputs of the system as well as what information a system must retain and manage. The input and outputs are data or flows and may be direct flows or may be carried via service requests or responses. Early in the system engineering process, the information captured about these elements is logical. The definition of a logical schema is provided below, along with a set of related definitions.

Definitions

Data Schema: a data or type model of a specific problem domain that includes blocks, value properties, value types, dimensions, units, their relations, and other relevant aspects collectively known as metadata. This model includes a type model consisting of a set of value types, units, and dimensions, and a usage model showing the blocks and value properties that use the type model.

Logical Schema: a data schema expressed independently from its ultimate implementation...