QUALITY LEGENDS
This guru defined quality as “fitness for use” and gave us the Quality Trilogy.
Who is JURAN?
Training, supplier audits and DFMEA workshops all sit in this Cost of Quality category.
What is Prevention?
This planning tool groups a large number of raw ideas into natural clusters.
What is an Affinity Diagram?
Shewhart introduced this tool in a one-page Bell Labs memo in 1924.
What is the control chart?
This index accounts for how centred a process is; its partner index does not.
What is Cpk (versus Cp)?
He insisted the only acceptable performance standard is zero defects.
Who is Crosby?
Warranty claims, field returns and recalls all sit in this Cost of Quality category.
What is External Failure?
The central relationship matrix of QFD carries this house-related name.
What is the House of Quality?
Variation that is natural, inherent and always present in a stable process.
What is common-cause variation?
This study quantifies the repeatability and reproducibility of a measurement system.
What is a Gage R&R?
His System of Profound Knowledge has four parts: systems, variation, knowledge, psychology.
Who is Deming?
This ISO 9001:2015 concept replaced the old “preventive action” clause.
What is risk-based thinking?
Multiply Severity by Occurrence by Detection and you get this number.
What is the RPN?
Eight consecutive points on the same side of the centreline violates this rule.
What is Western Electric Rule 4?
Changing one factor at a time hides this, which a factorial design exposes.
What is an interaction?
He argued about 95% of quality problems can be solved with seven simple visual tools.
Who is Ishikawa?
Clauses 4–6, 8, 9 and 10 of ISO 9001 map onto this four-letter cycle.
What is PDCA?
This planning tool anticipates what could go wrong in a plan and pre-plans a countermeasure.
What is a PDPC?
With 8–12 units a day and no rational subgroup, this is the chart to reach for.
What is an I-MR chart?
Below this conventional p-value we reject the null hypothesis.
0.05
He identified the eight dimensions customers use to judge quality, from Performance to Perceived Quality
Who is Garvin?
A defect caught in design costs roughly this many times less to fix than the same defect caught in the field
10 times
Driven mainly by Severity, this AIAG-VDA table has replaced RPN in many FMEA applications
What is the Action Priority table?
Deming's name for reacting to common-cause variation as though it were special cause
What is tampering?
Below this number of distinct categories, a gauge cannot reliably tell one part from another
5