Tired of vague “typical usage” language derailing price discussions? In this lesson, you’ll learn to draft crisp, enforceable pricing assumptions using the C‑P‑M‑V framework—so conditions, measurement, and adjustment paths are explicit and defensible. Expect a clear walkthrough of where assumptions live in contracts, model wording patterns across common scenarios, and negotiation fallbacks—plus real examples and targeted exercises to pressure‑test your precision.