Term Kind Topic What it is
Reserved and Committed Capacity Savings Plan, Committed Use Discount practice Reserved & Committed Capacity Trading a commitment to spend for a substantial discount, where the risk is committing to an architecture you are about to change.
Trough-Based Commitment Baseline Reservation, Commit to the Floor practice Reserved & Committed Capacity Sizing reserved capacity to the quietest period rather than the average, because only the trough is capacity you are certain to use for the whole commitment term.