Would it be wrong to take a set of instructional schematics to the barber? We discuss when vague requirements work, and importantly when they don't.\n\nImage: J Pitts via Wikipedia\n\nThings mentioned in this podcast:\n- Goodhart\u2019s Law https://en.wikipedia.org/wiki/Goodhart%27s_law \n\nFor more Cognitive Engineering episodes find us on iTunes, Google Play or wherever you get your podcasts, or add this RSS feed to your preferred player: feeds.soundcloud.com/users/soundcloud:users:219479129/sounds.rss