Buying a steak is not a challenging task. We can simply choose portion (e.g., sirloin), quality (e.g., AAA), and weight (e.g., 8oz).
However, when I visited the SSG food market, an upscale grocery store in Seoul, to buy a steak, the store asked me to choose the thickness of the steak as well. Interestingly, I was provided with several pieces of wood plank whose thickness varies. Thanks to this tangible decision support tool, I did not have to scratch my head to figure out the numerical value of the steak thickness. Instead, I picked up one piece of wood plank and simply said “I would like to go with THIS thickness.”
Wood plank will help other buyers choose the right steaks and taste the flavor of the professional services.