16.842: System architecture and concept generation
16.842
Fundamentals of Systems Engineering Fall 2009
System Architecture
Concept Generation
October 2, 2009
Prof. Olivier de Weck
Note: System Architecture is a very rich topic that can take up
an entire semester by itself. ESD.34 is a recommended course
(E. Crawley) and a number of slides in this lecture are adapted from it. 1
V-Model ? Oct 2, 2009
Stakeholder Analysis
Systems Engineering Overview
Lifecycle Management
Requirements Definition
System Architecture Concept Generation
Cost and Schedule Management
Commissioning Operations
Verification and Validation
Human Factors
Tradespace Exploration System Integration Concept Selection Interface Management
Design Definition Multidisciplinary Optimization
System Safety
System/Product Architecture Framework (ESD.34)
Regulations
System
Architecture
Corporate
strategy
Competition
Market Data
Where?
form
Structure
How ?
Why ?
needs
What ? goals
function concept +constraints
Purpose
Performance
Behavior
Requirements
Market
Strategy
Technology
Customer(s)
Manufacturing , Operations, Illities*
When? timing
Action
Who?
operator
Users
Training
Outbound marketing strategy, Sales, Distribution
*Reliability, Servicability, Environmental Impact, Upgradeability, Flexibility,etc...
can3be
Themes: Ambiguity-Creativity-Complexity
1
Complexity
Mission concept prelim.
detailed chunks integration life-cycle evolution
Creativity Ambiguity
C
D
I
O
Early on ambiguity is high -> reduce ambiguity Next concept are needed -> focus creativity Then complexity starts increasing -> manage complexity
4
A Definition
? Architecture
? The embodiment of concept, and the allocation of physical/informational function (process) to elements of form (objects) and definition of structural interfaces among the objects
? Consists of:
? Function ? Related by Concept ? To Form
Function
Form
Concept
5
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