Rolling Forecast A budget that always looks 12 months ahead, updated quarterly — like a GPS that recalculates when you change direction.
ZBB Zero-Based Budgeting — build the budget from zero each cycle instead of adjusting last year's numbers.
Variance Buffer Extra room built into a budget for unexpected costs — like an emergency fund for your procurement categories.
Budget Gaming When teams inflate or hoard budget because the process rewards it — like padding an expense report "just in case."