GS 7963 1TC-384

The Rise and Fall of Systems Engineering

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(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

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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