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Questions related to the Theory of Constraints You can listen to any text on the web with NextUp.com TextAloud. |
What do Deming's New Economics, Senge's Fifth Discipline, Baker's Scoring a Whole in One, and Goldratts What is this thing called the Theory of Constraints? have in common? (See the Castellano, Young & Roehm summary).
1. What is the goal? (See MAAW's Chapter 8) or (See the Ruhl summary).
2. What prevents an organization from achieving the goal? (See the Ruhl summary).
3. What is a constraint? (See the Ruhl,
Atwater & Gagne,
Rezaee & Elmore and Huff
summaries. Question 1 in the TOC Company
problem is also relevant).
4. How is a bottleneck defined in TOC? (See the summary of The Goal Chapter 18).
5. Why does Goldratt condemn placing emphasis on the
efficiency of non-constraints?
(See MAAW's Chapter 8).
6. How is net profit defined in TOC? (See MAAW's Chapter 8 Exhibit 8-6 alternative).
7. What is throughput? Provide a conceptual definition as well
as a calculation.
(See MAAW's
Chapter
8 or the Ruhl summary and graphic
view).
(See summary of The Goal Chapter 8 and Chapter
10).
(For an example of throughput in healthcare see the Kershaw
summary).
8. What is inventory in the theory of constraints? (See
MAAW's Chapter 8 or the
Ruhl summary and graphic
view). (Also see the summary of The Goal Chapter 8 and Chapter
10).
9. How is net profit increased in TOC? (Three ways.) (See the Ruhl summary).
10. What is the order of importance of the three methods of
increasing net profit in TOC?
(See the Ruhl
summary).
11. In reference to question 10, what is the order of
importance in traditional cost accounting?
(See the Ruhl
summary).
12. How is the TOC measure of ROI = (T-OE)÷I = NI÷I
different from Dupont’s measurement,
i.e., (Margin)(Turnover) = (NI÷Sales)(Sales÷Investment) =
NI÷I?
(See Comparing
Dupont's ROI with Goldratt's ROI).
13. Goldratt argues that traditional accounting mixes
controllable and uncontrollable costs in cost
of goods sold. What does he mean
by this?
14. Goldratt argues that accounting measurements (either traditional
absorption costing, direct
costing, or ABC costing) all rely on a poor, or
invalid assumption about value added.
What does he mean by this? When is value added in TOC? (For
some ideas, see the
Ruhl
and Baggaley& Maskell
summaries).
15. Goldratt argues that throughput accounting produces the
most conservative and objective
income statements and balance sheets in the
context of GAAP. What does he mean by this
and what do you think?
16. Does Goldratt confuse book value with market value in his arguments, i.e., questions 15&16?
17. What is a balanced plant? (See Step 3 in MAAW's Chapter 8 and the summary of The Goal Chapter 11).
18. What is Goldratt’s match bowl experiment designed to
show?
(See the Match
Bowl note and Summary of The Goal Chapter 14).
19. Does JIT attempt to balance the plant? It so, how?
20. What does Goldratt mean by balancing the flow? (See Step 3 in MAAW's Chapter 8).
21. What is the difference between activating and utilizing a
resource?
(See Rules for
scheduling in MAAW's Chapter 8).
22. Why is time saved at a non-constraint resource or non-bottleneck an illusion? (See Rules)
23. What is Goldratt’s prescription for increasing throughput? (See Chapter 8).
24. What is the drum-buffer-rope method? What do the drums,
buffers and ropes represent?
(See Drum-Buffer-Rope
System and the Huff summary).
25. According to Goldratt, what is wrong with the concept of a
cost center?
(See the summary of Westra,
Srikanth and Kane).
26. Why does Goldratt advocate placing a quality control emphasis in front of a bottleneck?
27. In traditional absorption costing, what happens to NI when
the product inventory
(i.e., work in process and finished goods) increases?
Why?
(See the Pop
Company problem for questions 27-30).
28. What happens to NI when the product inventory decreases in absorption costing? Why?
29. In throughput costing, what happens to NI when the product
inventory increases? Why?
(See the Pop
Company problem for questions 27-30).
30. What happens in throughput costing when the product inventory decreases? Why?
31. Does ABC encourage, or discourage product diversity? Why?
32. Does TOC encourage or discourage product diversity? Why?
33. Goldratt argues that there is no such thing as a product
cost and wants to purge the term
"product cost" from our vocabulary?
Why? (See Goldratt 90 summary).
34. Compare Goldratt’s five step approach to the Deming-Shewhart
PDSA cycle.
(See MAAW's Chapter 8 for TOC Steps, the PDSA
graphics and the Kershaw graphic).
35. Goldratt argues "don’t think cost, think
throughput". Why? (See the Goldratt 92
summary).
If product costs are not determined in TOC, how
are products priced?
(See the Baggaley
& Maskell summary).
36. Is the goal in TOC too narrow? Discuss the issue. (See the Handy 2002 summary).
37. What are some ways to exploit a constraint?
(See Step 2 in MAAW's Chapter 8 and the Kershaw
summary).
38. What does it mean to break a constraint?
39. What is a floating bottleneck? What causes this to occur? (See the
Match Bowl note and
the summaries of The Goal Chapters 18 and 19 and Chapters
11-14).
40. Why is Goldratt opposed to compromise? (See Goldratt 90 summary).
41. Discuss TOC in relation to JIT. Is there a conflict
between the philosophies and the various
practices associated with each? (See the Comparison and see the Goldratt 92 summary).
42. Goldratt is critical of the JIT emphasis on non-financial
measurements of performance.
What is his argument? (See Chapters 10
and 24 of the Haystack
Syndrome summary).
43. Discuss the concept of variability in relation to TOC and JIT.
44. Some authors argue that TOC and ABC can be
integrated. What is the main argument
related to this view? (See the
summaries by Holmen, Huang,
Coate and Frey,
Demmy
& Talbott, Kee, MacArthur
93, Campbell 95 and Campbell,
Brewer & Mills).
45. Other authors argue that accounting professionals cannot
agree with both TOC and ABC
and that those who discuss integration focus on the
wrong issue. What is the relevant issue
according to these critics? Discuss this opposing viewpoint.
(See the summaries of
Louderback &
Patterson, Corbett, Westra,
Srikanth & Kane and Goldratt 92).
46. What is the Evaporating Cloud Method? What is
the purpose and how does it work?
(See the Goldratt
90 summary).
47. What is the Effect-Cause-Effect Method? What
is the purpose and how does it work?
(See the Goldratt
90 summary).
48. What is the Socratic Method? Why does
Goldratt advocate using the Socratic method?
(See the Goldratt
90 summary).
49. What is the goal of the product mix decision in TOC? See the TOC Problems.
50. How is the product mix determined in a TOC system? See the TOC Problems.