This document provides an introduction to interaction design methods. It defines interaction design as the process of creating, shaping, and deciding all use-oriented qualities of a digital artifact within resource constraints. It presents a simple interaction design model involving identifying needs, designing, building prototypes, and evaluating. The course will cover research methods like contextual inquiry and personas, as well as design techniques like scenarios, concept mapping, user stories, paper prototyping, and interface prototyping. The goal is a research-based design process culminating in testing and final presentations.