Intelligence continues to undergo significant changes at a remarkable pace, notably developments related to big data type surveillance. Much has happened in and to the intelligence world, as well as to intelligence itself. The next steps include multiagency, multinational, multidisciplinary, multidomain information sharing and sense making, conducted by commerce, academic, government, civil society, media, law enforcement, military, and non-governmental/ non-profit organizations. These increasing complex systems with interrelated and technical dimensions are essential to modern defense systems. The book explores how these systems can be approached by providing a new framework for generating analysis: intelligence engineering (IE). Intelligence engineering refers to the use of scientific and technical knowledge to create, operate, maintain, and dismantle complex devices, machines, structures, systems, and processes that support and/or disrupt human endeavor occurring in the intelligence context. Spanning both human and technical intelligence realms, IE involves the collection and analysis of information that is of military and/ or political value, and that relates to international relations, defense, and national security. As the chapters show, intelligence continues to extend further into engineering realms, including Federation of Systems and System of Systems Engineering approaches, social engineering, and so forth. System of Systems Engineering is a methodology used by the US Department of Defense, law enforcement, military, and emergency management work. It is used for information collection, allowing the sharing of research data and tools (such as software), for example in joint operations where army, navy, and air force must work together, with their systems interoperating with each other, or with coalition forces. Command and control, communications, and medical care systems are also systems that must interoperate to support operations in hostile or unstable situations. The book presents several System of Systems analysis, along with important intelligence criteria relating to specificity, timeliness, accuracy, relevance, and clarity. Risk analysis and assessment are discussed as well. This core text will offer students and practitioners a toolkit ready for use by outlining the methodology of Intelligence Engineering."