JIAOTONG UNIVERSIT 196 Systems Engineering Lecture 6 Tradespace Exploration and Concept Selection: AHP Method Instructor(s) Prof.Jianjun Gao Department of Automation School of Electronic Information and Electrical Engineering 2014 Spring
Systems Engineering Instructor(s) + - 2014 Spring Tradespace Exploration and Concept Selection: AHP Method Prof. Jianjun Gao Department of Automation School of Electronic Information and Electrical Engineering Lecture 6
Gao's V-Model Stakeholder Systems Engineering Lifecycle Analysis Overview Managment 入 Requirement Cost and Schedule Commissioning Analysis Management Operations System Verification and Architecture Validation Tradespace System Exploration Integration Human System Factor Design Definition and Safety Optimization CLGO System Engineering by J.J.Gao 2
+ - System Engineering by J. J. Gao 2 Gao’s V-Model Stakeholder Analysis Requirement Analysis System Architecture Tradespace Exploration Design Definition and Optimization System Integration Verification and Validation Commissioning Operations Lifecycle Managment Systems Engineering Overview Cost and Schedule Management Human Factor System Safety
Today's Agenda Analytic Hierarchy Process(AHP) Step by step Example of AHP Example CLGO System Engineering by J.J.Gao 3
+ - Analytic Hierarchy Process(AHP) Step by step Example of AHP Example System Engineering by J. J. Gao 3 Today’s Agenda
The Analytic Hierarchy Process(AHP) Founded by Saaty in 1980. It is a popular and widely used method for multi-criteria decision making. Allows the use of qualitative,as well as quantitative criteria in evaluation. Wide range of applications in systems engineering CLGO
+ - The Analytic Hierarchy Process (AHP) Founded by Saaty in 1980. It is a popular and widely used method for multi-criteria decision making. Allows the use of qualitative, as well as quantitative criteria in evaluation. Wide range of applications in systems engineering
AHP Methodology in Trade Studies Prioritizes multiple tangible and intangible criteria: In most decisions,intangibles such as political factors and ·social factors take precedence over tangibles such as ·economic factors and ·technical factors ◆ It is not the precision of measurement on a particular factor that determines the validity of a decision,but the importance we attach to the factors involved AHP assigns importance to all the factors and synthesizes this diverse information to make the best decision Example:the decision to use aluminum instead of a titanium alloy for the Boeing 777 wings was not the technically preferred alternative. G CLGO System Engineering by J.J.Gao 5
+ - System Engineering by J. J. Gao 5 5 AHP Methodology in Trade Studies Prioritizes multiple tangible and intangible criteria: In most decisions, intangibles such as • political factors and • social factors take precedence over tangibles such as • economic factors and • technical factors It is not the precision of measurement on a particular factor that determines the validity of a decision, but the importance we attach to the factors involved AHP assigns importance to all the factors and synthesizes this diverse information to make the best decision Example: the decision to use aluminum instead of a titanium alloy for the Boeing 777 wings was not the technically preferred alternative