Arthur D. Hall: System

Arthur D. Hall was American electrical engineer. Explore interesting quotes on system.
Arthur D. Hall: 36   quotes 0   likes

“God made Homo sapiens a problem-solving creature. The trouble is that He gave us too many resources: too many languages, too many phases of life, too many levels of complexity, too many ways to solve problems, too many contexts in which to solve them, and too many values to balance.
First came the law, accounting, and history which looks backward in time for their values and decision-making criteria, but their paradigm (casuistry) cannot look forward to predict future consequences. Casuistry is overly rigid and does not account for statistical phenomena. To look forward man used two thousand years to evolve scientific method - which can predict the future when it discovers the laws of nature. In parallel, man evolved engineering, and later, systems engineering, which also anticipates future conditions. It took man to the moon, but it often did, and does, a poor job of understanding social systems, and also often ignores the secondary effects of its artifacts on the environment.
Environmental impact analysis was promoted by governments to patch over the weakness of engineering - with modest success - and it does not ignore history; but by not integrating with system design, it is also an incomplete philosophy. System design and architecture, or simply design, like science and engineering is forward-looking, and provides man with comforts and conveniences - if someone will tell them what problems to solve, and which requirements to meet. It rarely collects wisdom from the backward-looking methodologies, often overlooks ordinary operating problems in designing its artifacts, whether autos or buildings, and often ignores the principles of good teamwork.”

Arthur D. Hall

Source: Metasystems Methodology, (1989), p.xi cited in Philip McShane (2004) Cantower VII http://www.philipmcshane.ca/cantower7.pdf

Life , Wisdom , God , Law

“The plan of the present paper is to discuss properties of systems more or less abstractly; that is to define system and to describe the properties that are common to many systems and which serve to characterize them all.”

Arthur D. Hall

Source: Definition of System, 1956, p. 18: Introduction

“For any given system, the environment is the set of all objects whose behaviour is influenced by the behaviour of the primary system, and those objects whose behaviour influences the behavior of the primary system.”

Arthur D. Hall

Source: Definition of System, 1956, p. 20 cited in: Baleshwar Thaku eds. (2003) Perspectives in resource management in developing countries. p. 54

Behavior

“In our definition of system we noted that all systems have interrelationships between objects and between their attributes. If every part of the system is so related to every other part that any change in one aspect results in dynamic changes in all other parts of the total system, the system is said to behave as a whole or coherently. At the other extreme is a set of parts that are completely unrelated: that is, a change in each part depends only on that part alone. The variation in the set is the physical sum of the variations of the parts. Such behavior is called independent or physical summativity.”

Arthur D. Hall

Source: Definition of System, 1956, p. 23

Behavior , Change , Parting , Dependency

“The operational sciences hoped to nourish business management, which however largely ignored them, and the latter continues to be undernourished by the business schools which are fairly broad but shallow everywhere. By over focus on short-range financial values, business management in the United States has lost a dozen major markets to the Japanese, added pollution in all its forms, and enriched itself out of all proportion to its value as just one factor of production.
Action science, developed by the social sciences over many years in relative isolation from the applied physical sciences, and which might otherwise have humanized them and made engineering more productive, was doomed to fail by being on one end of the two-culture problem wherein science and the humanities do not even speak the same language.
I could go on listing a few dozen paradigms: art, law, computer software design, medicine, politics, and architecture, each addressed to a certain context, level, or phase, each good in itself, but each limited to the fields of its origin and its purposes. The methodological problem is the same as if, in designing any large system, each subsystem designer were left to design each subsystem to the best requirements he knew. The overall requirement might not be met; overall harmony could not be achieved, and conflict could ensue to cause failure at the system level.
What is envisioned is a new synthesis, a unified, efficient, systems methodology (SM): a multiphase, multi-level, multi-paradigmatic creative problem-solving process for use by individuals, by small groups, by large multi-disciplinary teams, or by teams of teams. It satisfies human needs in seeking value truths by matching the properties of wanted systems, and their parts, to perform harmoniously with their full environments, over their entire life cycles”

Arthur D. Hall

Source: Metasystems Methodology, (1989), p.xi-xii, cited in Philip McShane (2004) Cantower VII http://www.philipmcshane.ca/cantower7.pdf

Life , Truth , School , Law

“For a given system, the environment is the set of all objects outside the system: (1) a change in whose attributes affect the system and (2) whose attributes are changed by the behavior of the system.”

Arthur D. Hall

Source: A methodology for systems engineering, 1962, p. 61 cited in: Clute, Whitehead & Reid (1967) Progressive architecture. Vol.48, Nr. 7-9. p. 106

Behavior , Change

“Systems engineering is most effectively conceived of as a process that starts with the detection of a problem and continues through problem definition, planning and designing of a system, manufacturing or other implementing section, its use, and finally on to its obsolescence. Further, Systems engineering is not a matter of tools alone; It is a careful coordination of process, tools and people.”

Arthur D. Hall

A.D. Hall (1965) "Systems Engineering from an Engineering Viewpoint" In: Systems Science and Cybernetics. Vol.1 Issue.1

People , Problem

“Synthesis of systems is much more difficult. Here science and engineering begin to take on aspects of art. A systems designer or planner not only must construct systems that work harmoniously individually and in tandem, he must also know a lot about the environment that the system is intended to match. Consideration of environmental factors requires foresight and experience; no one can ever foresee all the variables of importance and a choice of which to include is often a difficult one to make.”

Arthur D. Hall

Source: Definition of System, 1956, p. 28

Art , Science

“It is hard to say whether increasing complexity is the cause or the effect of man's effort to cope with his expanding environment. In either case a central feature of the trend has been the development of large and very complex systems which tie together modern society. These systems include abstract or non-physical systems, such as government and the economic system. They also include large physical systems like pipe line and power distribution systems, transportation and electrical communication systems. The growth of these systems has increased the need not only for over-all planning, but also for long-range development of the systems. This need has induced increased interest in the methods by which efficient planning and design can be accomplished in complex situations where no one scientific discipline can account for all the factors. Two similar disciplines which emerged about the time of World War II to cope with these problems are called systems engineering and operations research.”

Arthur D. Hall

Source: A methodology for systems engineering, 1962, p. 5: About the evolution of systems engineering; Partly cited in: Allen B. Rosenstein (1965) " Systems engineering and Modern Engineering Design http://books.google.com/books?id=HDp9ReqM314C&pg=PA1#v=onepage&q&f=false"

War , World , Communication , Problem

“A system is a set of objects with relationships between the … in may be described generally as a complex of elements or components directly or indirectly related in a causal network, … Also, we are mainly interested in systems within which some process is continually going on, including an interchange with an environment across the boundary. It is generally agreed that when we deal with the more open system with a highly flexible structure, the distinction between the boundaries and the environment becomes a more and more arbitrary matter, dependent upon the purpose of the observer.”

Arthur D. Hall

Cited in: Addison C. Bennett (1978) Improving management performance in health care institutions: a total systems approach.. p. 40
A methodology for systems engineering, 1962

Dependency

“Every part of the system is so related to every other part that a change in a particular part causes a changes in all other parts and in the total system”

Arthur D. Hall

Cited in: Harold Chestnut (1967) Systems Engineering Methods. p. 121
A methodology for systems engineering, 1962

Change , Parting

“It is time to employ fractal geometry and its associated subjects of chaos and nonlinear dynamics to study systems engineering methodology (SEM). Systematic codification of the former is barely 15 years old, while codification of the latter began 45 years ago… Fractal geometry and chaos theory can convey a new level of understanding to systems engineering and make it more effective”

Arthur D. Hall

A.D. Hall III (1989) "The fractal architecture of the systems engineering method", in: Systems, Man and Cybernetics, Part C: Applications and Reviews, IEEE Transactions on Volume 28, Issue 4, Nov 1998 Page(s):565 - 572

Understanding , Study , Time

“Unfortunately, the word "system" has many colloquial meanings, some of which have no place in scientific discussion. In order to exclude such meanings, and at the same time provide a starting point for exposition we state the following definition:
A system is a set of objects together with relationships between the objects and between their attributes.
Our definition does imply of course that a system has properties, functions or purposes distinct from its constituent objects, relationships and attributes.”

Arthur D. Hall

Source: Definition of System, 1956, p. 18: Italics quote cited in: Thorbjoern Mann (1992) Building Economics for Architects. p. 140

Time

“The basic functional elements of any automatic control system: sensing, converting, storing, communicating, computing, programming, regulating, actuating, and display (Chestnut, 1967). Many kinds of systems in being, speculated about, or even intuited, ranging from computers, most factory processes, communication systems, road networks, automatic farms, etc., have structures which can be invoked as zero-order matches to proposed sets of throughputs, especially for single- thread designs. This method of structuring is related closely to analogical design, of which a special form is called synectics.”

Arthur D. Hall

Source: Metasystems Methodology, (1989), p. 191

Communication , Sense

“Has mankind evolved to a point that there exists, or that with creative additions and re-combinations of modest proportions, there can be shown to be available, a common systems methodology, in terms of which we can conceive of, plan, design, construct, and use systems (procedures, machines, teams of people) of any arbitrary type in the service of mankind, and with low rates of failure?”

Arthur D. Hall

Source: Metasystems Methodology, (1989), p. 3 Cited in: Derek Hitchins (2007) " Systems Methodology http://www.hitchins.net/The%20Systems%20Approach.pdf"

People , Failure

“In our definition of system we noted that all systems have interrelationships between objects and between their attributes. If every part of the system is so related to every other part that any change in one aspect results in dynamic changes in all other parts of the total system, the system is said to behave as a whole or coherently.”

Arthur D. Hall

At the other extreme is a set of parts that are completely unrelated: that is, a change in each part depends only on that part alone. The variation in the set is the physical sum of the variations of the parts. Such behavior is called independent or physical summativity.
Source: Definition of System, 1956, p. 23

Parting , Relation ships , Change