A symposium is a discussion method where different viewpoints on a single aspect of a topic are presented. It differs from a seminar in that it focuses on a single controversial issue rather than multiple aspects of a topic. The purposes of a symposium include identifying various aspects of a theme, developing the ability to make judgments, and enabling listeners to form policies. Key characteristics include providing a broad understanding of a topic and developing feelings of cooperation. Effective symposiums have speeches that are persuasive, argumentative, or informative without interruptions, followed by questions from the audience.