文档介绍：Lean Engineering:
Lean Beyond the Factory Floor
A Framework for Lean Engineering
March 24, 1999
Hugh McManus
Co-Lead, Product Development Focus Team
LAI - MIT
Research Sponsored By LAI
Lean Aerospace
Initiative Steps in Lean Thinking
(Womack and Jones)
G Precisely specify value by specific product
G Identify the value stream for each product
G Make value flow without interruptions
G Let the customer pull value from the producer
G Pursue perfection
Understand Eliminate Radical
Process Waste Change
PD McManus 032499-2 ©1999Massachusetts Institute of Technology
Lean Aerospace
Initiative The Question
Do lean concepts familiar in the production world
apply to product development and/or other
engineering processes?
G Manufacturing
– Material flows
– Physical transformation
– Raw material -> finished product
G Product development
– What flows?
– What transformations are performed?
– What are the “raw” and “finished” states for a product
definition?
PD McManus 032499-3 ©1999Massachusetts Institute of Technology
Lean Aerospace
Initiative Product Development Value
Stream (PDVS) LAI Initiative
G MIT working group
G Industry/Government workshops
G Continuing virtual working groups
G ~9 faculty and staff, ~11 students, ~40 industry,
~10 government
Important problem
Unique cooperative effort
Ideal application of the LAI concept
PD McManus 032499-4 ©1999Massachusetts Institute of Technology
Lean Aerospace
Initiative Results
G Lean concepts DO apply to PD
G Must be carefully re-interpreted, modified
G Key insight: information flow plays the role of
material flow
G Key barrier: defining/measuring Value
Product: Lean Engineering Framework
PD McManus 032499-5 ©1999Massachusetts Institute of Technology
Lean Aerospace
Initiative Lean Engineering Framework
1 Start with the Big Picture
2 Define Problem and its Boundaries and
Interfaces
3 Define Value in the above Context
4 Map th