What can we learn from the standards of aerospace industries that can help us improve our Definition of Done? Quite a lot, as it turns. Based on learning from The Checklist Manifesto (Atul Gawande) and research by Peter Pronovost on patient safety, in this talk I make an analogy from real life ICU stories to software teams. And finally also provide a short guide to help you bring your DoD to higher standards, one notch at a time