Conceptual Design Conceptual design practices Finding the right form to maximize stakeholder value over the product (or product family)lifetime "Good"system decisions must both answer the right guestions as well as answer the guestions right √ What is involved in getting the right questions?Decision Maker defined objectives √ What is involved in getting the questions right?Rigorous decision and analytic methods System Engineering by J.J.Gao CLGO 11
+ - System Engineering by J. J. Gao 11 Conceptual Design Conceptual design practices Finding the right form to maximize stakeholder value over the product (or product family) lifetime “Good” system decisions must both answer the right questions as well as answer the questions right What is involved in getting the right questions? Decision Maker defined objectives What is involved in getting the questions right? Rigorous decision and analytic methods
Today's Agenda o( Concept Generation,Concept Selection Decision Making in Concept Selection Simple Methods:Pugh Matrix Multi-Attribute Utility Non-Dominance Relationship Tradespace Exploration Example: Space Tug CLGO System Engineering by J.J.Gao 12
+ - 12 Today’s Agenda Concept Generation, Concept Selection Decision Making in Concept Selection Simple Methods: Pugh Matrix Multi-Attribute Utility Non-Dominance Relationship Tradespace Exploration Example: Space Tug System Engineering by J. J. Gao
Architecture Process Decision Making Define/Refine System_ Architecture Analyze Concepts .Trade Studies Alternatives ·QFD I Select Preferred Define/Refine and ·Modeling& L System Integrate System Simulation Architecture-- Physical Performance Solution Configuration Synthesize Analysis Multiple ·etc System ·etc Architectures QFD Quality Function Deployment Figure 4-11 System Architecture Synthesis Process Flow INCOSE SE HanndBook CLGO System Engineering by J.J.Gao 13
+ - System Engineering by J. J. Gao 13 Architecture Process Decision Making INCOSE SE HanndBook
Decision Making Methods and Tools for ranking (and choosing)among competing alternatives (course of actions) Components of a decision ■Alternatives Criteria Value judgment Decision maker(Individual or group)preference CLGO System Engineering by J.J.Gao 14
+ - Methods and Tools for ranking (and choosing) among competing alternatives (course of actions) Components of a decision Alternatives Criteria Value judgment Decision maker(Individual or group) preference System Engineering by J. J. Gao 14 Decision Making
Decision maker Create a system that fulfills some need while efficiently utilizing resources within some context Stakeholders resources Unknown Decision Makers efficiently fulfills Designers system context Stakeholders need Decision makers are a subset that have significant influence/control over the driving need and/or resources CLGO System Engineering by J.J.Gao 15
+ - System Engineering by J. J. Gao 15 Decision Maker Unknown Stakeholders Stakeholders context resources need Decision Makers Designers system fulfills efficiently Decision makers are a subset that have significant influence/control over the driving need and/or resources Create a system that fulfills some need while efficiently utilizing resources within some context