Why does Swiss cheese look like that? What's with all the holes? It turns out, those holes are key in making cheese Swiss! Dr. Michael Tunick, author of "The Science of Cheese," explains what goes ...

With its mild, versatile flavor, Swiss cheese is right up there with everyone’s favorites. The fun holes don’t hurt, though we have to wonder: Why does Swiss cheese have holes at all?

Renowned psychology professor James Reason, who popularized what is known as the Swiss cheese model, has died. Mistakes, ...

Mistakes happen, he theorized, because multiple vulnerabilities in a system align — like the holes in cheese — to create a recipe for disaster.

The concept is adapted from the original Swiss cheese model by James Reason. The layers are represented as protective safeguards (cheese) and weaknesses (holes). When an initiating event—one that ...