16.682 The Aerospace Industry
March 16 Class
Special Guest: Prof. Wesley Harris
Plan for the Class
3:05-3:10 Announcements and Introductions
3:10-3:55 LEV Ch 5 Discussion
3:55-4:05 Break
4:05-4:50 Av Week Article Discussion
4:50-4:55 Return Journal Assignments
Muddy cards
4:55 Adjourn
Software Upgrades More Than Code:
?
System
~ 16 months
~ 31 months
~ 26 months
(Sensors,
Trainers, Etc.)
System Test ~34%
System Design and Development ~ 11%
Code Generation ~ 1/2 the Design and
Development Cost ~ 6% of total Cost
Field
Testing
System Design and Software Development
Requirements Derivation
Major Activities and Times
Program
Initiation
Other ~ 50%
Requirement Derivation ~ 5%
End to End Software Development Cycle Time ~ 62 Months
Estimated Total Cost Distribution
Source: Ippolito and Murman, DASC 2001
Adapted from Murman et al., "Challenges in the better, faster, cheaper era of aeronautical design, engineering and manufactuing,
The Aeronautical Journal, Oct. 2000.
Points Captured from Class Discussion
Islands of Success
? How do IOS get started and
form?
– From pressure such as to save
money
– Long term vision for the
company
– New project opportunity
– Isolated groups idea
– Culture accepting of change
– Competition pressure
? What barriers inhibit IOS
growth or spread?
– Infrastructure already in place
– Low-hanging fruit or don’t see
whole value stream
– It is hard to change people
mindset
– Lack of vision or leadership
– Requires investment, high risk,
untested
–NIH
– Not transferable
– Value added may be different
between fields in different areas
– Geographic barriers
Aspects of “Culture”
? Socially transmitted behavior patterns or
beliefs that are shared by a particular group.
? The predominant attitudes and behavior that
characterize the functioning of a group or
organization.
? The patterns or traits that seem to express
something essential about a group,
community, or population.
Applying Lean Thinking to MIT
? Can you identify any Lean Thinking IOS in the
following areas of MIT?
– Aero-Astro department curriculum
– MIT curriculum outside of AA
– Student life and living
– Administrative support systems for students
? If Yes: What are they? What is preventing them
from growing into “Mainlands of Success”?
? If No: What are some opportunities for starting
some IOS? How could they be started?
Points Captured from Class Discussion
MIT IOS
? AA curriculum
? MIT curriculum
– Students come from varied
– Muddy cards: quick
backgrounds and MIT is
feedback
addressing this with
– PRS: even faster feedback
? Interphase
– Prof. Darmofal,
? Concourse
? 16.100 homework before
?ESP
class, oral exams
? Barriers
? 16.901, homework daily
? Barriers
–Cost
– Interest of students to try
– Cultural between depts
the alternate path
– Teachers have different
– Getting the information
values
– Get the Dean on board
? Course III is attempting
unifying approach
Points Captured from Class Discussion
MIT IOS Continued
? Student life and living
? Adm support systems
– ARC and counseling
– Counseling support
support services
services.
? Prof Vanevera:
– Dorm structure IOS on
fragmented approach or
mindset. Lack of holistic
student level
approach
? Helping new students
– Computer support system
? Floor help
in AA
– Barrier: Top down ? Lack of integrated
approach
thinking
? Meal Plan not the value
–Seamans’ lab
? Is the library being used
that students want
? Continuous flow, seamless
of structure
AvWeek Discussion
? In addition to your prompting questions for
each article, consider:
Are the principles of Lean Thinking
relevant to this article, and why or why not?