This document compares and contrasts the ADDIE and Dick & Carey instructional design models. The ADDIE model is a linear 5-step approach, while the Dick & Carey model is iterative with 10 steps. Both have components for analysis, design, and evaluation, but the Dick & Carey model incorporates formative evaluation at each step. The advantages of ADDIE include its simplicity and dynamic nature, while its disadvantage is evaluation only at the end. Dick & Carey's advantages are its focus on crafting learning plans and allowing early adjustments, while its disadvantage is having too many steps.