1. assemble-to-order (ATO) A system that produces standard modules to be
TOC or DSS or ATO?
assemble-to-order
(ATO)
A system that produces
standard modules to be
modified and/or combined
into a customizable product.
Page 421
2nd Ed, Page 487
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2. backward scheduling Starting an activity such
dynamic or backward scheduling or real-time?
backward scheduling
Starting an activity such
that it will finish on its
deadline.
Page 440
2nd Ed, Page 507
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3. bottleneck The most heavily utilized resource within a system.
bottleneck or priority rule or incident?
bottleneck
The most heavily utilized
resource within a system.
Page 440
2nd Ed, Page 507
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4. critical ratio Time remaining until due date divided by work
EDD or critical ratio or milestone?
critical ratio
Time remaining until due
date divided by work
remaining to be done.
Page 436
2nd Ed, Page 503
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5. decision support system (DSS)
DSS or Gantt chart or DBR?
decision support system (DSS)
Software that assists
human decision making in
a particular setting.
Page 443
2nd Ed, Page 511
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6. deterministic Fixed and known in advance, representing a
makespan or priority rule or deterministic?
deterministic
Fixed and known in advance, representing a
high level of certainty when
planning.
Page 442
2nd Ed, Page 509
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7. dispatching Assigning work in real-time, often in the context of
dispatching or real-time or triage?
dispatching
Assigning work in real-time,
often in the context of
mobile resources.
Page 444
2nd Ed, Page 511
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8. drum-buffer-rope (DBR)
EDD or DBR or TOC?
drum-buffer-rope (DBR)
Central principle of bottleneck scheduling, evoking the bottleneck (drum) ideally protected by a buffer of waiting work produced by upstream work centers whose activities are constrained to the bottleneck’s pace (rope).
Page 441
2nd Ed, Page 508
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9. dynamic Actively and continuously changing.
dynamic or incident or scheduling?
dynamic
Actively and continuously
changing.
Page 443
2nd Ed, Page 510
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10. EDD Abbreviation for the priority rule of earliest due date,
ATO or EDD or TOC?
EDD
Abbreviation for the priority
rule of earliest due date,
or scheduling the task
with the most imminent
deadline first.
Page 425
2nd Ed, Page 492
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11. FCFS Abbreviation for the sequencing rule first-come,
FCFS or TOC or EDD?
FCFS
Abbreviation for the
sequencing rule first-come,
first-served, or the
equivalent of FIFO, first-in,
first-out.
Page 427
2nd Ed, Page 494
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12. finite loading A scheduling approach that recognizes capacity
finite loading or infinite loading or
priority rule?
finite loading
A scheduling approach
that recognizes capacity
constraints.
Page 439
2nd Ed, Page 507
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13. flowtime The length of time a job spends in the system.
scheduling or flowtime or makespan?
flowtime
The length of time a job
spends in the system.
Page 422
2nd Ed, Page 488
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14. forward scheduling Starting an activity as soon
forward scheduling or backward scheduling
or sequencing?
forward scheduling
Starting an activity as soon
as possible, regardless of its deadline.
Page 439
2nd Ed, Page 507
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15. Gantt chart A scheduling diagram that
Gantt chart or loading Gantt chart or
project scheduling Gantt chart?
Gantt chart
A scheduling diagram that
illustrates activities across a horizontal time line.
Page 432
2nd Ed, Page 499
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16. incident An unscheduled event requiring immediate resolution.
dynamic or probabilistic or incident?
incident
An unscheduled event
requiring immediate
resolution.
Page 442
2nd Ed, Page 509
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17. infinite loading A scheduling approach that
finite loading or infinite loading or
priority rule?
infinite loading
A scheduling approach that
ignores capacity constraints.
Page 439
2nd Ed, Page 507
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18. iterative planning Deliberately adjusting plans
Iterative planning or dynamic or DSS?
iterative planning
Deliberately adjusting plans
at short intervals, to reflect
new information.
Page 444
2nd Ed, Page 511
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19. job shop A process layout. ATO or make-to-order or job shop?
Page 421
2nd Ed, Page 487
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20. known unknown A source of uncertainty known to a decision maker,
known unknown or unknown unknown or
incident?
known unknown
A source of uncertainty
known to a decision maker,
usually evident in past
experience or data.
Page 442
2nd Ed, Page 509
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21. makespan or priority rule or Little’s Law?
The average number of some item in a system equals its average arrival rate multiplied by the average time each unit spends in the system.
2nd Ed, Page 489
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22. loading Assigning work to resources.
forward scheduling or scheduling or loading?
loading
Assigning work to
resources.
Page 421
2nd Ed, Page 487
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23. loading Gantt chart A Gantt chart in which the
Gantt chart or loading Gantt chart or
project scheduling Gantt chart?
loading Gantt chart
A Gantt chart in which the
horizontal bars represent
utilization of work centers
or finite resources.
Page 433
2nd Ed, Page 500
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24. local optimization Localized problem solving that ignores any larger
local optimization or situational awareness
or TOC?
local optimization
Localized problem solving
that ignores any larger
problem of which the local
decision is a component.
Page 439
2nd Ed, Page 507
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25. makespan The length of time required to complete a finished schedule.
makespan or flowtime or tardiness?
makespan
The length of time required
to complete a finished
schedule.
Page 422
2nd Ed, Page 488
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26. make-to-order A system that produces low volumes of customized
make-to-order or make-to-stock or
job shop?
make-to-order
A system that produces
low volumes of customized
product.
Page 421
2nd Ed, Page 487
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27. make-to-stock A system that produces high volumes of
make-to-order or make-to-stock or ATO?
make-to-stock
A system that produces
high volumes of
standardized product.
Page 420
2nd Ed, Page 486
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28. milestone A scheduling diagram that
loading Gantt chart or Gantt chart or
milestone?
milestone
A scheduling diagram that
illustrates activities across a horizontal time line.
Page 433
2nd Ed, Page 500
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29. multitasking Simultaneous completion
dynamic or multitasking or ATO?
multitasking
Simultaneous completion
of multiple tasks by a single processor.
Page 428
2nd Ed, Page 494
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30. on-demand Products provided with zero lead times.
on-demand or real-time or dynamic?
on-demand
Products provided with zero
lead times.
Page 441
2nd Ed, Page 509
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31. planning horizon The farthest point in the future considered in
backward scheduling or forward scheduling
or planning horizon?
planning horizon
The farthest point in
the future considered in
decision making.
Page 420
2nd Ed, Page 486
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32. precedence relationship
scheduling or precedence relationship or
critical ratio?
precedence relationship
A dependency between two tasks, usually requiring that one task be completed before the other task is
started.
Page 429
2nd Ed, Page 496
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33. priority rule A rule determining the sequence in which
priority rule or FCFS or EDD?
priority rule
A rule determining
the sequence in which
requirements will be met.
Page 425
2nd Ed, Page 491
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34. probabilistic or tardiness or incident?
Variable or not well known in advance; subject to randomness. This represents some uncertainty
in planning.
Page 442
2nd Ed, Page 509
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35. Project scheduling Gantt chart A scheduling diagram that
Gantt chart or loading Gantt chart or
project scheduling Gantt chart?
Project scheduling
Gantt chart
A scheduling diagram that
illustrates activities across a horizontal time line.
Page 432
2nd Ed, Page 499
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36. queue A waiting line. FCFS or loading or queue? Click here for Hint
Page 422
2nd Ed, Page 488
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37. queue discipline A rule or rules determining
queue discipline or FCFS or EDD?
queue discipline
A rule or rules determining
the order in which waiting
individuals will be served.
Page 427
2nd Ed, Page 494
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38. real-time The present point in time; now.
on-demand or real-time or deterministic?
real-time
The present point in time;
now.
Page 441
2nd Ed, Page 509
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39. scheduling To determine timing. scheduling or DSS or finite loading?
Page 420
2nd Ed, Page 486
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40. sequencing To determine the order in which requirements are met.
flowtime or FCFS or sequencing?
sequencing
To determine the order in
which requirements are
met.
Page 421
2nd Ed, Page 487
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41. situational awareness
situational awareness or known unknown or
scheduling?
situational awareness
An individual or organization’s
comprehension of the
surrounding environment
and its potential near-future
states.
Page 443
2nd Ed, Page 510
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42. SPT Abbreviation for the priority rule of shortest processing
SPT or EDD or FCFS?
SPT
Abbreviation for the priority
rule of shortest processing
time, or scheduling the
task that requires the least
amount of processing time
first.
Page 425
2nd Ed, Page 492
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43. tardiness The length of time a job is
real-time or on-demand or tardiness?
tardiness
The length of time a job is
late. If a job is finished early or on time, its tardiness is zero.
Page 423
2nd Ed, Page 489
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44. Theory of Constraints (TOC)
situational awareness or TOC or DSS?
Theory of Constraints (TOC)
A body of knowledge
focused on managing the
limitations on a system for
continuous improvement.
Page 441
2nd Ed, Page 508
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45. triage A priority rule creating sequences intended to
triage or FCFS or EDD?
triage
A priority rule creating
sequences intended to
yield the most value from
distinctly limited resources.
Page 427
2nd Ed, Page 494
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46. unknown unknown Uncertainty omitted from planning because the
known unknown or unknown unknown or
incident?
unknown unknown
Uncertainty omitted from
planning because the
decision maker is unaware
of its presence.
Page 443
2nd Ed, Page 510
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