This chapter explores the student through multiple definitions, using several widely accepted examples as foundational information. It discusses intelligence analysis processes and how they are used in business, product marketing, counter terrorism, crime prevention, military applications, and so on. The chapter describes the advantages, process structure, and applications of other processes in more detail. The lack of a consensus definition for intelligence analysis stems from the fact that there is no agreement on the meaning of the term intelligence. Intelligence analysis is the process by which the information collected about an enemy is used to answer tactical questions about current operations or to predict future behavior. Intelligence has been around in its most basic form since prehistoric times. Most intelligence community organizations' analysis process descriptions contain two parts: an analysis phase, and a synthesis phase. The military intelligence analyst is the reciprocal of American crime analyst.