As engineering education research matures, engineering education researchers seek to answer increasingly complex questions rooted in social situations, such as “What is engineering in various communities?” and “How does engineering work happen at various stages of professional development?” The desire to ask such questions leads the community to develop or incorporate diverse methods that help the community to answer the complex question. The purpose of this paper is to present to the engineering education community an introduction to domain analysis, an ethnographic method developed within anthropology designed to answer these complex questions.