麻省理工学院：《Robust System Design》Objectives

Obiectives Review the format and expectations for the final exam Review material needed to succeed on the final exam Set the material from the course in the context of the product realization process · Answer questions mit 人 16881

Objectives • Review the format and expectations for the final exam • Review material needed to succeed on the final exam • Set the material from the course in the context of the product realization process • Answer questions 16.881 MIT

mportance of the Final The course grade is determined by 40% term project Balance? 30% final exam 20% homework Dominates 10 o quizzes The final shows how you ve learned over time Did the home works and quizzes stick? mit 人 16881

Importance of the Final • The course grade is determined by – 40% term project Balance? – 30% final exam – 20% homework – 10% quizzes Dominates • The final shows how you’ve learned over time – Did the home works and quizzes stick? 16.881 MIT

Format of the final exam 4 essay questions(10% each) 20 short answer questions 3% each) Which means its 40% Essay 60% Short answer 2 Hours--I'd suggest 10 minutes per essay 3 minutes per short answer 20 minute buffer review mit 人 16881

Format of the Final Exam • 4 essay questions (10% each) • 20 short answer questions (3% each) • Which means its – 40% Essay – 60% Short answer • 2 Hours -- I’d suggest – 10 minutes per essay – 3 minutes per short answer – 20 minute buffer / review 16.881 MIT

Final exam rules pen boo k pen notes Solutions to homework, quizzes--OK Calculators--probably helpful Laptop computers- fine but not needed mit 人 16881

Final Exam Rules • Open book • Open notes • Solutions to homework, quizzes -- OK • Calculators -- probably helpful • Laptop computers -- fine, but not needed 16.881 MIT

Essay Questions Emphasize the big picture and concepts Composed of several inter-related questions Example What is a scaling factor What are the properties of a good scaling factor? Provide an example of a scaling factor If you found that there was no control factor with the desired properties, what would you do? Tell me anything you know about scaling factors that you consider essential to practicing robust design mit 人 16881

Essay Questions • Emphasize the big picture and concepts • Composed of several inter-related questions • E x a m p le – What is a scaling factor? – What are the properties of a good scaling factor? – Provide an example of a scaling factor – If you found that there was no control factor with the desired properties, what would you do? – Tell me anything you know about scaling factors that you consider essential to practicing robust design. 16.881 MIT

Expectations on Essay Questions Answer the questions Make your responses concise about 3 sentences per question if possible Make the answer complete but avoid a shot gun approach Points will be deducted for imprecise statements Examples should have engineering relevance Examples should preferably be from some area you know from experience rather than from a text mit 人 16881

Expectations on Essay Questions • Answer the questions! • Make your responses concise – About 3 sentences per question if possible • Make the answer complete but avoid a shot gun approach – Points will be deducted for imprecise statements • Examples should have engineering relevance • Examples should preferably be from some area you know from experience rather than from a text 16.881 MIT

Short answers Fairly similar to quizzes in format difficulty and sometimes in content No multiple choice or true/ false Usually come in clusters of 3-5 Relate to a scenario, data table, graphs Usually have a right answer Often require estimation mit 人 16881

Short Answers • Fairly similar to quizzes in format, difficulty, and sometimes in content • No multiple choice or true / false • Usually come in clusters of 3-5 • Relate to a scenario, data table, graphs … • Usually have a “right answer” • Often require estimation 16.881 MIT

Expectations on Short Answers Right answer+ 10% gets you full credit So simplify and estimate when appropriate Right procedure gets you 2 /3 credit So show your work if you have time a reasonable attempt gets you 1/3 credit So explain your assumptions mit 人 16881

Expectations on Short Answers • Right answer ± 10% gets you full credit – So simplify and estimate when appropriate • Right procedure gets you 2/3 credit – So show your work if you have time • A reasonable attempt gets you 1/3 credit – So explain your assumptions 16.881 MIT

Short answer- Example The data below represent the results from an l& (2). The fifth and sixth columns were left unassigned Control factors Exp no.ABC D 14 234 19 10 7 222 2 12112 12 13 19 What is the factor effect f,? Estimate the sum of squares due to the mean You wish to study interaction between control factors a and d and also between factors f and B Will this design allow you to determine the effect o 16 81 of these two interactions mit

Short Answer -- Example • The data below represent the results from an L8 (2 7). Co ntrol F a cto rs Exp n o. A B C D e e F η 1 1 1 1 14 2 1 1 2 18 3 1 2 2 19 4 1 2 1 10 5 2 1 2 18 6 2 1 1 12 7 2 2 1 13 8 2 2 2 19 The fifth and sixth columns were left 1 1 1 1 1 2 2 2 2 1 1 2 2 2 2 1 2 1 2 1 2 2 1 2 1 1 2 2 1 2 1 1 unassigned. • What is the factor effect f1? • Estimate the sum of squares due to the mean. • You wish to study interaction between control factors A and D and also between factors F and B. Will this design allow you to determine the effect 16.881 of these two interactions? MIT

What is fair game any concept or technique described in Phadke any material in the lecture notes Any material in quizzes home works Questions requiring original thought on subtle topics not explicitly discussed in class mit 人 16881

What is Fair Game • Any concept or technique described in Phadke • Any material in the lecture notes • Any material in quizzes & home works • Questions requiring original thought on subtle topics not explicitly discussed in class 16.881 MIT