the rise and fall of systems engineering - istec at...
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GS 7963 1TC-384
The Rise and Fall of Systems Engineering
GS 7963 2
(Systems) Engineering (Systems)
Norm’s Definition
“Systems Engineering is the practice of creating the means of performing useful functions through the combination of two or more interacting elements.”
X-EN-23
GS 7963 3IP-562
GS 7963 4IP-807
GS 7963 5IP-848
GS 7963 6MITRE-61 GS 7963 6
GS 7963 7IP-539
GS 7963 8IP-609 8GS 7963
GS 7963 9IP-849
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Car Struck by Meteorite
IP-423.1
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Source: The Planetary Society
IP-437.1
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Intense Solar Activity
Source: NASA/ESAIP-837
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Skylab
IP-574
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Teleoperator Retrieval System
IP-575
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A Simple System
Source: Friedrich Wiekhorst
X-EN-19.1
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A Simple System
Source: Friedrich Wiekhorst
Possible States
X-EN-19.2
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Source: Unknown
IP-619
GS 7963 18IP-829.9
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“The Monster”
I = 2n (n-1)
I = Number of Potential StatesN = Number of Elements
X-EN-20
GS 7963 20IP-816.1 Source: WWF
“The Monster” …About to Devour a Systems Engineer
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1,073,741,824
X-EN-21
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“A billion is a thousand million? Why wasn’t I informed of this?”
HC-199
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The Inclusive System
X-EN-22
Expanded System
Nominal System
External Influence
External Influence
External Influence
External Influence
Without External Influences
5 Elements20 (Binary) Paths1,048,576 States
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Trade Study:Mamoth vs.
Tiger vs. Rabbit
Final Game SelectionPreliminary
Game SelectionSite Survey
Site SelectionSite
Preparation
Final Hunting Plan
Meat Distribution
Plan
Forecast Weather
Distribute Meat
Transport to CaveKill GameCatch Game
Population Survey
Meat Requirements
Game Sightings
Meat Requirements
Review
Preliminary Hunting Plan
Final Hunter Selection
Weapon Selection
Weapon Development
Weapon Practice
Schedule Hunt
Preliminary Hunter
Selection
Hunt Readiness
Review (HRR)
Trade Study(Rock vs. Spears)
Site Inspection
Weapons Inspection
Hunter Inspection
Chase Game
Lose Game
Get Caughtby Game
Choose New Hunt Leader
Critical Hunting Review (CRR)
Preliminary Hunting Review (PHR)
Obtain Blessing of Great God
Thag
I don’t know, it seemed easier
when we just went hunting.
Yes, but Og assures me that this will
improve our efficiency and keep us ahead of those Cro-magnons in
the valley.
Why the Neanderthals became extinct
Hunt Leader Chosen
HC-215 GS 4606 24
GS 7963 25HC-214
GS 7963 26PM-1 26GS 7963
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The Dirty Dozen
HC-204.1 Source: off the mark
(Systems Engineering Traps)
GS 7963 28TC-383.1
- I -The Overlooked
Element
GS 7963 29IP-796
GS 7963 30IP-576.1 GS 7963 30
GS 7963 31Photo Source: United HealthcareIP-236
GS 7963 32IP-712
Photo Source: LMC Digital Photo Archive
GS 7963 33IP-155
GS 7963 34TC-383.2
- II -The Sacrosanct Requirement
GS 7963 35W-798
And the users exclaimed with a laugh and a taunt, It’s just what we asked for, but not what we want.
(Anon)
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Photo Source: Telcordia Technologies
IP-597.1
Zebra Requirement Specification
GS 7963 37IP-724
It All Depended on How You Looked at It …
GS 7963 38TC-383.3
- III -The Ubiquitous
Interface
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Mariner
Source: NASA
TP-49
GS 7963 40W-794.3
GS 7963 41TC-383.4
- IV -The Single-Point
Failure Mode
X-DI-36 42GS 7963
X-DI-3743GS 7963
GS 7963 44TC-383.5
- V -Non-Redundant
Redundancy
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Source: Report of the Presidential Commission on the Space Shuttle Challenger Accident
X-MA-12
GS 7963 46IP-571
Source: Lockheed
L1011
GS 7963 47TC-383.6
- VI -Sneaky Circuits
GS 7963 48Photo Source: United HealthcareIP-640
GS 7963 49IP-757
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Space Shuttle Computer Synchronization SimplifiedAs Planned
First Flight
T-296
Initialization
Begin Search
Timing Marker for Initialization
Begin Search
GS 7963 51TP-46
Source: U.S. Space & Rocket Center
Nike Zeus
GS 7963 52TP-3
GS 7963 53TC-383.7
- VII -Non-Linearities
GS 7963 54IP-185
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Vortex
IP-838
GS 7963 56TC-383.8
- VIII -Propagating Changes
GS 7963 57IP-565
Source: U.S. Navy
Standard Anti-Radar Missile
GS 7963 58IP-824
GS 7963 59TC-383.9
- IX -Engineering’s Answer
to the Poison Pill
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–
TP-9.1
GS 7963 61TP-9
GS 7963 62TC-383.10
- X -The Missing Linkage
GS 7963 63IP-116 63GS 7963
GS 7963 64W-426
GS 7963 65
Photo Source: Jason Hutchinson - Associated Press
IP-697
Columbia Breakup
GS 7963 66TC-383.11
- XI -Failing
Without Grace
GS 7963 67IP-829.5
GS 7963 68TC-383.12
- XII -The Great Bugaboo:
Humans
GS 7963 69IP-186
GS 7963 70TP-5
GS 7963 71IP-564
Pershing
Source: U.S. Army
GS 7963 72X-SO-7.1AA
GS 7963 73X-SO-7.1BB
GS 7963 74X-SO-7.1CC
GS 7963 75X-SO-7.1DD
GS 7963 76X-SO-7.1EE
GS 7963 77X-SO-7.1FF
GS 7963 78X-SO-7.1GG
GS 7963 79X-SO-7.1HH
GS 7963 80X-SO-7.1II
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Photo Source: Dr. Claude Merrill
IP-595
GS 7963 82W-797
“If at all possible, be lucky!”
Al Ulteschi
GS 7963 83Photo Source: The Churchill Center, Inc.IP-605