An IEE value chain describes at a high-level what the organization does and the measurement of each function relative to a quality, cost, and time assessment.
The question that one might ask is, "which control charting technique is most appropriate?" My response to this question is, it depends on how you categorize the source of variability relative to common and special causes.
A test that samples and makes process statements from a 30,000-foot-level metric vantage point can provide more insight with less test effort than AQL testing.
If AQL testing is commonplace in an organization, consider viewing the AQL’s department activity as a process where input to the process is various types of batches that enter this process.
A previous blog, AQL (Acceptable Quality Level) sampling can be deceptive, described issues with AQL testing. This blog will elaborate more on this point using an example.
In business, there are many pink elephant-in-the-room issues, which are not typically discussed. These unchallenged practices or policies often lead to behaviors that result in very unhealthy unintended consequences.