Dr. Atul Gawande developed a surgical checklist to reduce errors during complex procedures, resulting in a 40% reduction in inpatient deaths and one-third fewer surgical complications. His experiences are documented in 'The Checklist Manifesto,' which influenced DMC, Inc. to create checklists for their common tasks to ensure essential steps are not overlooked. The DMC checklists include tasks such as planning calls, customer qualifications, proposal generation, and project trips.