The 6 M's Ishikawa Diagram Each individual on the "bones" or "ribs" inside of a traditional Ishikawa diagram represents a difficulty suitable to quality Manage, and may be described by the six "M"s, where failures or likely failures may be determined and rectified. These are typically:Shikawa là th?c ph?m b?o v? s?c kh?e s?n xu?t b?i D??c ph?m Syn