While checklists are often a vital tool for medical procedures, there has so far been little guidance on how they should be designed and applied in real medical scenarios. Now, a team including Dr. Alex Chaparro, a researcher at Embry-Riddle Aeronautical University, has developed an algorithm which can help medical experts to decide when a checklist is the best-suited tool for the task at hand; and if so, which type of checklist should be applied, based on the user’s technical experience. The approach could ultimately help complex, potentially urgent medical procedures to become safer and more efficient.