1. Simple, 2. Effective, 3. See #1
According to author Atul Gawande (American surgeon, writer, and public health researcher), in his book The Checklist Manifesto,
"Here, then, is our situation at the start of the twenty-first century: We have accumulated stupendous know-how. We have put it in the hands of some of the most highly trained, highly skilled, and hardworking people in our society. And, with it, they have indeed accomplished extraordinary things. Nonetheless, that know-how is often unmanageable. Avoidable failures are common and persistent, not to mention demoralizing and frustrating, across many fields - from medicine to finance, business to government. And the reason is increasingly evident: the volume and complexity of what we know has exceeded our individual ability to deliver its benefits correctly, safely, or reliably. Knowledge has both saved us and burdened us.
That means we need a different strategy for overcoming failure, one that builds on experience and takes advantage of the knowledge people have but somehow also makes up for our inevitable human inadequacies. And there is such a strategy - though it will seem almost ridiculous in its simplicity, maybe even crazy to those of us who have spent years developing ever more advanced skills and technology.
It’s a checklist."