Is it a requirement for run charts to have inspection data or can it have just a pass/fail check mark

Hybrid

Involved In Discussions
For example: Run chart says "BODY LENGTH = .060 ± .005" I measure the body length and get ".062"

Is it a ISO requirement to write my result or can i just put "pass"

ISO 9001:2015 to be exact
 

Bev D

Heretical Statistician
Leader
Super Moderator
Are you taking about a form where you right down the result or are you taking about a plot of the data over time?

ISO doesn’t cover run charts.
you can record results in any way you want.

HOWEVER: there is far more information when you record or plot the actual value.
 

seeva

Registered
Are you taking about a form where you right down the result or are you taking about a plot of the data over time?

ISO doesn’t cover run charts.
you can record results in any way you want.

However, for automotive supplier's ,this is far more informative when you record or plot the actual value.
I personally feel the objective to perform the measurement and clearly writing down the actual measurement , for the purpose of customer quality incidence / return, this indicators with actual data provide valuable info during investigation . Depending on the type of measurement taken, it can also add value to use a chart like X Bar R , to monitor the trend of the process ,
 

Steve Prevette

Deming Disciple
Leader
Super Moderator
Generally ISO has been very general about trending. Thou shalt do it. In some cases, tests are indeed go-no go and there is no "measurement" made. In that case, one can perform the trending on a p-chart (percentage or proportion) control chart. An advantage of using SPC control charts in conjunction with ISO is SPC is a pretty tried and true method that an auditor cannot say is an improper choice, as long as you follow your own rules established in your own procedure.
 
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