Systems engineers and architects must understand how all the parts of a system work together to satisfy its requirements. SysML is a general purpose graphical modeling language used to specify, analyze, and design systems that may include hardware, software, and personnel. SysML is now being adopted by companies across a broad range of industries, including aerospace and defense, automotive, and IT system developers. This book provides a comprehensive and practical guide for modeling systems with SysML. It includes a full description of the language along with a quick reference guide, and shows how the language can be applied to specify, analyze, and design systems. It contains examples to help readers understand how SysML can be used in practice.