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ME402: Design Decisions in Engineering

Unit 3: Decision Support Systems   Decision support systems (DSS) are computerized systems developed to assist decision making.  In this unit, you will learn basic premises of decision support systems and their applications in supporting engineering design.

Unit 3 Time Advisory
This unit will take you approximately 12 hours to complete.

☐    Subunit 3.1: 4 hours

☐    Subunit 3.2: 8 hours

Unit3 Learning Outcomes
Upon successful completion of this unit, the student will be able to:
- Design and implement DSS. - Manage the DSS life cycle. - Identify advantages and disadvantages of DSS. 

3.1 Introduction   - Reading: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 1: Decision Making and Decision Support” Link: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 1: Decision Making and Decision Support” (PDF)
 
Instructions: Please browse to the “Lecture Notes” section and download the PDF file for “Unit 1: Decision Making and Decision Support.”  Read the entire file.  This slide deck will provide you with an overview of Decision Support Systems.  Pay careful attention to slide 24 on System Life Cycle.  What makes for a successful decision support system?  This reading will take 2 hours to complete.
 
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  • Reading: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 2: Models, Cognitive Tools and Decision Making” Link: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 2: Models, Cognitive Tools and Decision Making” (PDF)
     
    Instructions: Please browse to the “Lecture Notes” section and download the PDF file for “Unit 2: Models, Cognitive Tools and Decision Making.”  Read the entire file.  This slide deck will provide you with an overview of decision modeling.  This reading will take approximately 2 hours to complete.
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

3.2 Elements of the Decision Support System: The Model, the Data, and the Dialog Subsystems   3.2.1 The Model Subsystem   - Reading: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 3: DSS Elements: The Model Subsystem (1)—Decision Analysis and Optimization” Link: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 3: DDS Elements: The Model Subsystem (1)—Decision Analysis and Optimization” (PDF)
 
Instructions: Please browse to the “Lecture Notes” section and download the PDF file for “Unit 3: DSS Elements: The Model Subsystem (1)—Decision Analysis and Optimization.”  Read the entire file.  This slide deck will provide you with an overview of decision analysis.  This reading will take approximately 2 hours to complete.
 
Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Reading: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 4: DDS Elements: The Model Subsystem (2)—Other Model System Technologies” Link: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 4: DDS Elements: The Model Subsystem (2)—Other Model System Technologies” (PDF)
     
    Instructions: Please browse to the “Lecture Notes” section and download the PDF file for “Unit 4: DSS Elements: The Model Subsystem (2)—Other Model System Technologies.”  Read the entire file.  This slide deck will provide you with an overview of modeling technologies.  This reading will take approximately 2 hours to complete.
     
    Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

3.2.2 The Dialog Subsystem   - Reading: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 5: DSS Elements: The Dialog Subsystem” Link: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 5: DDS Elements: The Dialog Subsystem” (PDF)
 
Instructions: Please browse to the “Lecture Notes” section and download the PDF file for “Unit 5: DSS Elements: The Dialog Subsystem.”  Read the entire file.  This slide deck will provide you with an overview of the dialog subsystem.  This reading will take approximately 2 hours to complete.
 
Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

3.2.3 The Data Subsystem   - Reading: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 6: DDS Elements: The Data Subsystem” Link: George Mason University: Professor Kathryn Blackmond Laskey’s SYST 452— Decision Support Systems Lecture Notes: “Unit 6: DDS Elements: The Data Subsystem” (PDF)
 
Instructions: Please browse to the “Lecture Notes” section and download the PDF file for “Unit 6: DSS Elements: The Data Subsystem.”  Read the entire file.  This slide deck will provide you with an overview of the data subsystem.  This reading will take approximately 2 hours to complete.
 
Terms of Use: Please respect the copyright and terms of use displayed on the webpage above.

  • Assessment: The Saylor Foundation’s “Unit 3 Assessment” Link: The Saylor Foundation’s “Unit 3 Assessment” (PDF)
     
    Instructions: Complete the linked assessment. When you are done -- or if you are stuck! -- check your work against the Saylor Foundation’s “Unit 3 Answer Key” (PDF). Consult the tutorials suggested in the assessment.