INSY 3021 Final Exam Study Guide 100% Correct Answers Verified Latest 2024 Version
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INSY 3021 Final Exam Study Guide |
100% Correct Answers | Verified | Latest
2024 Version
Definition of Industrial Engineering - The engineering discipline concerned with integrating people,
materials, information, and equipment into an efficient system
What do IE's do? - Figure out how to do t...
INSY 3021 Final Exam Study Guide |
100% Correct Answers | Verified | Latest
2024 Version
Definition of Industrial Engineering - ✔✔The engineering discipline concerned with integrating people,
materials, information, and equipment into an efficient system
What do IE's do? - ✔✔Figure out how to do things better. They engineer processes and systems that
improve quality and productivity. They work to eliminate waste of time, money, materials, energy and
other commodities
Manufacturing - ✔✔the transformation of materials into items of greater value by means of one or more
processing and/or assembly operations, . . . The key point is that manufacturing adds value to the
material by changing its shape or properties, or by combining it with other materials that have been
similarly altered.
Methods Engineering - ✔✔attempts to design optimal processes to produce value, with processes
involving humans and machines
Optimal - ✔✔lowest cost, highest quality, most reliable
Produce Value - ✔✔manufacture a product or service a customer
Humans and machines - ✔✔By selecting the sequences, tools, equipment, systems, facilities
Motion & Time Study - ✔✔The systematic observation, analysis, and measurement of the separate steps
in the performance of a specific job for the purpose of establishing a standard time for each
performance, improving procedures, and increasing productivity
Time Standards are based on the concept of __________ - ✔✔A Fair Day's Work
,Standard Time - ✔✔The amount of work that can be produced by a qualified employee when working at
a normal pace and effectively utilizing their time where work is not restricted by process limitations.
Throughout most of history, ____________ , a single worker, made products - ✔✔craftsman
The factory system began to __________ - ✔✔divide the craftsmen's trades into specialized tasks
Frederick Taylor - ✔✔Father of scientific Management.
- He proposed that the work of each employee be planned out by management in advance
- Replaced rule-of-thumb work methods with methods based on a scientific study of the tasks.
- Established proper work methods and provided tools
- Standard time determined for each job
- Matching employees to right job
- Providing the proper training
- Establishing incentives for work
- His theories were not widely accepted (conflict with management)
Scientific Management - ✔✔Need to take into account the socio-psychological aspects of human
behavior in organizations.
The Gilbreths - ✔✔Studied body's motions when performing tasks to eliminate wasteful motion & to
determine the most efficient sequence:
- The Quest for the One Best Way
- Continuous Improvement
- The traditional brick laying method, involved unnecessary stooping, walking and reaching . . . About
125 times per hour for brick and 125 times for mortar.
- Application of the Gilbreth system of motion analysis reduced the motions per brick from 18 to 5 and
increased the number of bricks laid per hour from 125 to 350.
Micro-motion Studies - ✔✔film an activity, replay and study it in slow motion to analyze the movements
,Cyclegraphic Studies - ✔✔attach a light to a certain body part and photograph it as the individual
performs a task, which produced a "trail" that marks how the body part moved during the task
Therbligs - ✔✔18 kinds of elemental motions used in the study of motion economy in the work place.
Why collect data? - ✔✔- To identify and/or verify a problem
- To analyze a problem
- To understand, describe, or monitor a process
- To find a relationship between inputs and outputs of a process
- To test a hypothesis
Primary Data - ✔✔Collected first hand by the engineer
Secondary Data - ✔✔Already available for engineers to use
Quantitative - ✔✔Information that can be measured and written down with numbers
Qualitative - ✔✔More detail on behavior, attitudes and feelings; Subjective
Nominal Data - ✔✔Values represent discrete units. Changing the order does not change their value
(Qualitative)
Ordinal Data - ✔✔Categorical variable. The difference between the two is that there is a clear ordering
of the variables (qualitative)
, Interval Data - ✔✔Similar to ordinal data, except that the intervals between the values are equally
spaced
Ratio Data - ✔✔Ordered units with intermediate values; distance between units is the same
Statistics - ✔✔The body of methods for collection and analyzing data
Descriptive Statistics - ✔✔Consist of methods for organizing and summarizing information (Average,
Frequency)
Inferential Statistics - ✔✔consist of methods for drawing and measuring the reliability of conclusions
about population (Confidence Interval, Hypothesis Testing)
Population - ✔✔a set or collection of all possible objects or individuals of interest
Sample - ✔✔any subset or sub-collection of a population
Parameter - ✔✔A characteristic of population
Statistic - ✔✔A characteristic of a sample (an estimate for the population)
Random Sample - ✔✔Every member of the population is equally likely to be a member of the sample.
The gold standard of sampling
Stratified Sampling - ✔✔When a population is split into non-overlapping sub-populations; Random
samples are drawn from the sub-populations
Samples of Convenience - ✔✔Characterized by the selection of easy to obtain members from the
population. May or may not be random.
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