INEG4433_LSN15_08

INEG4433_LSN15_08 - INEG 4433 Engineering Design and...

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LSN 14 1 INEG 4433– Engineering Design and Systems Management INEG 4433 Engineering Design and Systems Management Lesson 15: Solution Enhancement
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LSN 14 2 INEG 4433– Engineering Design and Systems Management Where are We? Last Time Feasibility Screening Next Time Sensitivity Analysis This Time Modeling and Analysis Modeling and Analysis Decision Making Decision Making
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LSN 14 3 INEG 4433– Engineering Design and Systems Management The System Decision Process
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LSN 14 4 INEG 4433 – Systems Engineering Design and Management Systems Engineering Design Process (SEDP) Completed Value Hierarchy, SDM and EPS Effective Need and Problem Understanding Problem Definition System Decomposition Needs Analysis • Stakeholder Analysis • Affinity Diagramming • I/O Modeling • Pareto Analysis • Functional Analysis Formulation of Alternatives OBJ Need OBJ OBJ Value System Design Synthesis of Alternatives Value Hierarchy Local / Global Weights System Matrix Engineering Problem Statement Zwicky’s Morphological Box • Brain Storming • Brain Writing • Dynamic Confrontation Feasibility Screening Not Infeasible Alternatives
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LSN 14 5 INEG 4433 – Systems Engineering Design and Management Modeling Modeling Draw a Pig
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LSN 14 6 INEG 4433 – Systems Engineering Design and Management How many Ping Pong Balls How many Ping Pong Balls could you fit in this room? could you fit in this room?
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LSN 14 7 INEG 4433 – Systems Engineering Design and Management PURPOSE & KEY TERMS
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LSN 14 8 INEG 4433 – Systems Engineering Design and Management What are Models? Abstract representatives of actual systems or subsystems. Allow the analyst to analyze and experiment with complex situations Evaluate alternatives
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LSN 14 9 INEG 4433 – Systems Engineering Design and Management Modeling … Modeling is the process of developing a description of a system that accounts for all of the system’s important properties . Models… are a simplified description of the elements and interactions that take place in a complex system designed to provide the analyst with essential information about the system it represents normally cheaper and faster than working with the actual systems themselves A model may be used as a representation of a system to be brought into being, or to analyze a system already in existence.
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LSN 14 10 INEG 4433 – Systems Engineering Design and Management Modeling & Analysis Performance of each alternatives with respect to the evaluation measures Existing system - directly measure (hard data) Otherwise - use modeling to predict or estimate an alternative’s performance.
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LSN 14 11 INEG 4433 – Systems Engineering Design and Management Types of Models LOGIC TESTS EXPERIENCE OF OTHER SYSTEMS ON-THE- JOB Reasoning through what would happen (war game) Controlled performance evaluation Observe comparable systems in similar conditions.
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This note was uploaded on 04/12/2009 for the course INEG 4433 taught by Professor Pohl during the Spring '09 term at Arkansas.

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INEG4433_LSN15_08 - INEG 4433 Engineering Design and...

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