There are many “facts” that can not be observed by just looking at the data. Was the operator waiting for materials upstream? Were the methods correct per the set of instructions? Was the operator continuously looking for his/her tools? The questions can go on and on. But without direct observation and asking questions face-to-face the process problems will continue to linger.
Being a Red Sox fan (and being very excited about the recent signings!) I will give an example, Player A hits .310 and Player B hits .295. Who is the better hitter?
Answer: Player A; if that is the only data or facts available.
But what if Player B had a slugging % of .700, Hit 40 HRs, Batted in 110 RBIs. What would the answer be then?
Without getting the entire picture (fact and data) the process improvements selected and implemented will most likely cause the next process downstream or upstream to fail. Thank you for letting me comment!
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