Why Matrix Published on June 24, 2018 in All About 5 WhyFull resolution (1327 × 1185) Why Matrix Matrix of blocks in different colors labeled with "why" to illustrate the 5 why method with different number of whys. This work by Christoph Roser at AllAboutLean.com is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Please credit the image as shown below. For digital documents and web pages please do include the links as shown below. Thank you.By Christoph Roser at AllAboutLean.com under the free CC-BY-SA 4.0 license.