Page 279 - Operations Strategy

254 CHAPTER 7 • ImPRovEmEnT sTRATEgy
table 7.4 Characteristics of bohn’s eight stages of process knowledge 7

Stage term Indication Operations Process Process To maintain To move up
activity learning knowledge
1 Complete Pure chance Expertise- Artistic In people’s Tinkering
ignorance based heads
2 Awareness Art €€€ Professionalism Develop
standards and
systematic
measures
3 Measurement Measure good Preserve Eliminate
output standards causes of large
disturbance to
process
4 Control of Mean made Observe Eliminate causes
mean stable and correct of important
deviations from variance, identify
limits new sources of
variability
5 Process Transitions Natural Written Eliminate Stabilise process
capability between experiments and oral new causes of transitions and
products and variability differences
processes are in process
known conditions for
different parts
6 Know how Transitions Monitor process Scientific
between parameters experimentation
products and and transitions and theory
processes are and eliminate building on
known causes of new important
variability variables for
new product
introduction
7 Know why Science Procedure- Controlled Data- Science enquiry Scientific
about all key based experiments bases and and debate experimentation
variables and software and theory
simulations building on all
variables
8 Complete Know all
knowledge variables and
relationships
for products,
now and in
the future

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