1. Advanced Manufacturing Systems Design © 1999 John W. Nazemetz Week 11 Discussion Discussion Topic: Course Format, Anticipatory QC, HW Questions November 2, 1999

2. © 1999 John W. NazemetzSlide 2 Computer Integrated Manufacturing Systems ADVANCED MANUFACTURING SYSTEMS DESIGN Week 11 Discussion Announcements, Mid-Course Logistics Review, Anticipatory QC, HW Questions

3. © 1999 John W. NazemetzSlide 3 Computer Integrated Manufacturing Systems ANNOUNCEMENT No Discussion Meeting Next Week Instructor at STEP Conference Will Pre-Tape and Post on Web: Discussion of SBIRE, Inc. -- Oklahoma’s First/Only Legally Recognized Virtual Enterprise

4. © 1999 John W. NazemetzSlide 4 Computer Integrated Manufacturing Systems Mid-Course Logistics Review (1) Lecture/Week 11 Represents a ChangeLecture/Week 11 Represents a Change –Weeks 1-10 Text Based –Weeks 11-14 Lecture Based Attempt to Expose Students to Information Exchange Technologies –Prerequisite for Integration Goal is Understanding and Comprehension, not Expertise –Week 15 – Student Papers

5. © 1999 John W. NazemetzSlide 5 Computer Integrated Manufacturing Systems Mid-Course Logistics Review (2) How Are We Doing?How Are We Doing? –Use of Net/Videotape for Lecture Allows students more control of schedule Logistics Problems –Delivery/Receipt –Technical »Access »Viewing Content/Delivery Comments –Pace, Lack of Ability to Question (as in Regular Class) –Time Distortion

6. © 1999 John W. NazemetzSlide 6 Computer Integrated Manufacturing Systems Mid-Course Logistics Review (3) How Are We Doing?How Are We Doing? –Course Website Access Materials Adequacy/Improvement –Design (content) –Navigation Update Frequency/Availability Instructor Concerns –Questions/Errata by Topic Input

7. © 1999 John W. NazemetzSlide 7 Computer Integrated Manufacturing Systems Mid-Course Logistics Review (4) Suggestions for ImprovementsSuggestions for Improvements

8. © 1999 John W. NazemetzSlide 8 Computer Integrated Manufacturing Systems Anticipatory Quality Control (1) How does one know as to when to apply “look ahead control charts”, as compared to conventional control charts?How does one know as to when to apply “look ahead control charts”, as compared to conventional control charts? –Note/Comment: Both types of charts are developed in same manner Difference is WHEN action is taken –Conventional – Observation Outside Limits –Anticipatory – Next Observation Likely to be Outside Limits

9. © 1999 John W. NazemetzSlide 9 Computer Integrated Manufacturing Systems Anticipatory Quality Control (2) How does one know as to when to apply “look ahead control charts”, as compared to conventional control charts?How does one know as to when to apply “look ahead control charts”, as compared to conventional control charts? –Data is Autocorrelated –Data is Automatically (Serially) Gathered –Underlying (Non-Random) Model Known “Reasonable” Predictor of Next Item Cost of “Scrap” >> Cost of Lost Tool Life, etc.

10. © 1999 John W. NazemetzSlide 10 Computer Integrated Manufacturing Systems Homework Questions (1) Re: 10.7Re: 10.7 –Even though the example in the book is just like the question. I still do not understand the relationship of the cost factors given to the hours needed for optimal aggregate production. –Reference Equations 10.5-9, pg 405 of text.

11. © 1999 John W. NazemetzSlide 11 Computer Integrated Manufacturing Systems Homework Questions (2) Equations 10.5-9Equations 10.5-9

12. © 1999 John W. NazemetzSlide 12 Computer Integrated Manufacturing Systems Homework Questions (3) Possible Confusion #1 -> the first term of Z is the cost/unit to produce a unit, excluding labor (i.e., it is the variable cost of production, material, overhead allocation, etc.). As such, it is $/unit produced NOT $/hr as stated in the HW problem for c x. thus, c x (x1+x2+...x6) is the production cost less labor -- the cost of labor is accounted for in the objective equation by the regular, overtime and undertime terms and these hours are maintained by constraint 10.8.

13. © 1999 John W. NazemetzSlide 13 Computer Integrated Manufacturing Systems Homework Question (4) Possible Confusion #2 -> in 10.8, the constraint should be/is expressed in hours. W t represents the regular work force level (in hours); you may be interpreting these values as number of workers (which it is not in the text's formulation). You may be more comfortable with a problem formation that uses W t as the (integer) number of workers, if so 10.8 would become O t - U t = kX t -40W t -- 40 hours/worker/week if one assumes the period has a duration of one week. This would require c h to be redefined to represent the cost to hire one worker (not obtain an additional hour of regular time labor)-- similar argument for c f and c w will need to represent the worker cost/period

14. © 1999 John W. NazemetzSlide 14 Computer Integrated Manufacturing Systems Other Questions Papers/PresentationsPapers/Presentations Test/HomeworkTest/Homework OtherOther

15. Advanced Manufacturing Systems Design © 1999 John W. Nazemetz Week 11 Discussion Session Discussion Topic: Mid-Term Assessment, QC, HW Questions November 2, 1999 END OF SEGMENT