This document compares and contrasts two instructional design models: the ADDIE model and the Dick & Carey model. The ADDIE model is a five-stage model that includes analysis, design, development, implementation, and evaluation. The Dick & Carey model is a comprehensive model that provides guidance through each step of the design process and emphasizes formative evaluation. Both models recognize the importance of determining learners' prior knowledge and establishing clear learning objectives. A key difference is that the ADDIE model is more flexible while the Dick & Carey model requires all steps to be completed sequentially.