Struggling to turn engineering notes into a privacy-ready narrative that legal can scan in minutes? This lesson shows you how to describe data flows succinctly and defensibly—covering purpose, data categories, processing, recipients, transfers, retention, and safeguards—with disciplined brevity and standardized language. You’ll see plain-English guidance, model sentence patterns, worked before/after rewrites, and focused examples for data mapping, logging, and differential privacy, followed by targeted exercises to confirm mastery. By the end, you’ll produce DPIA-ready summaries that reduce back-and-forth, increase consistency, and accelerate approvals.