ABSTRACT Supply chain management in the early 21st century continues to evolve, expand, and globalize at a dizzying pace. Whether it is adapting and integrating new decision support tools and new technologies related to business analytics, the Internet, equipment and machinery, or other infrastructure, new challenges confront supply chain managers every day. In this environment of constant, almost overwhelming change, it is critical not to lose sight of the fact that the underlying principles and foundation tools of supply chain management remain valuable, and even more important than ever. These principles, foundation tools, and methods provide an anchor, a guide map, a “constant” for supply chain managers to call on as they confront dramatic changes in their everyday work lives. In this chapter, we review and illustrate how to utilize effectively one key “foundational” supply chain management tool and methodology: multiple time horizon, hierarchical “frameworks” to organize and manage supply chain planning and operations activities.