Corrections

Three column headings were mislabeled on the "Humans, PCs Shift Division of Labor" chart in the "Human element gains importance in enterprise integration" article on p. 21 in the June 1998 issue of Control Engineering. The mislabeling switched the "% of decisions by computers" heading with the "% of decisions by computers" heading, reversed the chart's actual findings, and made the "Pro...

07/01/1998


Three column headings were mislabeled on the "Humans, PCs Shift Division of Labor" chart in the "Human element gains importance in enterprise integration" article on p. 21 in the June 1998 issue of Control Engineering. The mislabeling switched the "% of decisions by computers" heading with the "% of decisions by computers" heading, reversed the chart's actual findings, and made the "Projected % of human-based decisions" heading unreadable. A corrected version of the chart is printed below. Control Engineering regrets this error.

HUMANS, PCs SHIFT DIVISION OF LABOR
The tasks most enterprises must complete to function and survive can be divided into human-based decisions supported by computer systems and computer system-based decisions monitored by humans. The following percentages show how decisions are often split between these decision makers in the various levels of the Purdue Hierarchical Model, and how those percentages are likely to change in the future.

Level

% of decisions by humans

% of decisions by computers

Projected change in % of human-based decisions

Source: Institute for Interdisciplinary Engineering Studies, Purdue University, 1998.

Overall enterprise management

100

0

0

Overall production planning, scheduling

90

10

-22

Scheduling, of plant's connected units

70

30

-71

Supervisory control of process units

25

75

-60

Dynamic control of process units

10

90

-100





No comments
The Engineers' Choice Awards highlight some of the best new control, instrumentation and automation products as chosen by...
The System Integrator Giants program lists the top 100 system integrators among companies listed in CFE Media's Global System Integrator Database.
Each year, a panel of Control Engineering and Plant Engineering editors and industry expert judges select the System Integrator of the Year Award winners in three categories.
This eGuide illustrates solutions, applications and benefits of machine vision systems.
Learn how to increase device reliability in harsh environments and decrease unplanned system downtime.
This eGuide contains a series of articles and videos that considers theoretical and practical; immediate needs and a look into the future.
Controller programming; Safety networks; Enclosure design; Power quality; Safety integrity levels; Increasing process efficiency
Additive manufacturing benefits; HMI and sensor tips; System integrator advice; Innovations from the industry
Robotic safety, collaboration, standards; DCS migration tips; IT/OT convergence; 2017 Control Engineering Salary and Career Survey
Featured articles highlight technologies that enable the Industrial Internet of Things, IIoT-related products and strategies to get data more easily to the user.
This article collection contains several articles on how automation and controls are helping human-machine interface (HMI) hardware and software advance.
This digital report will explore several aspects of how IIoT will transform manufacturing in the coming years.

Find and connect with the most suitable service provider for your unique application. Start searching the Global System Integrator Database Now!

Infrastructure for natural gas expansion; Artificial lift methods; Disruptive technology and fugitive gas emissions
Mobility as the means to offshore innovation; Preventing another Deepwater Horizon; ROVs as subsea robots; SCADA and the radio spectrum
Future of oil and gas projects; Reservoir models; The importance of SCADA to oil and gas
Automation Engineer; Wood Group
System Integrator; Cross Integrated Systems Group
Jose S. Vasquez, Jr.
Fire & Life Safety Engineer; Technip USA Inc.
This course focuses on climate analysis, appropriateness of cooling system selection, and combining cooling systems.
This course will help identify and reveal electrical hazards and identify the solutions to implementing and maintaining a safe work environment.
This course explains how maintaining power and communication systems through emergency power-generation systems is critical.
click me