IEEE 1801 UPF enables specification of power intent early in the design flow, to drive both verification and implementation processes. But power management decisions must be made incrementally throughout the flow, often by different people at each stage. Power intent specifications need to be structured in a manner that reflects these stages, to organize the information effectively, to ensure clear communication among IP providers, designers, and implementers, and to maximize reuse of power intent. This session highlights a "new school" low power methodology termed "successive refinement" that uses the strength of UPF in just such a structured approach. It will explain what kinds of power intent information should be captured at each stage, which features of UPF are involved in doing so, and how this structured approach benefits both IP providers and IP users.