This document provides guidance on deciding what to design for an interaction design project. It outlines a three step process: 1) discover through stakeholder interviews, researching the business online/in-person, using their products/services, and understanding competitors; 2) define the value for both the client/business and customers; 3) design through iteration. It emphasizes understanding the business goals such as revenue/brand-driven metrics. Assignments include reading, preparing stakeholder interview questions focused on business goals, and a group presentation on the competitive landscape.