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Why (Intervene in) Systems Changes?

With a focus on “ecological systems”, the second of four lectures planned for the Systemic Design course in the Master’s program in Strategic Foresight and Innovation at OCAD University proceeded as a timeboxed presentation:  targeting 40 minutes of content (skipping slides to stay within time constraints), followed by 10 minutes of discussion.  Since the slides are rich with content and links to sources, students were directed to pay attention to what I was saying, over trying to read the slides projected behind me. 

The agenda was in four sections:

  • [preamble] Errors, Attention and Traps (Ecological Understanding)
    • Systems Changes Learning Circle (Bateson, Gibson, Ingold)
    • (Resistances to) Changing as primary system of interest
  • A. Socio-Ecological Systems Perspective
    • Tavistock Institute (Emery, Trist)
    • Organization as primary system of interest
  • B. (Social-) Ecological Systems  + Panarchy
    • Stockholm Resilience Centre (Holling, Walker, Peterson)
    • Ecology as primary system of interest
  • C. The Ecosystem Approach
    • Resilience Alliance (Waltner-Toews, Kay)
    • Sustainable development project as primary system of interest

Online, the video is available on Youtube for streaming.

Viewers who prefer to watch video on a disconnected device can download a video file.

Video H.264 MP4 WebM

With a focus on “ecological systems”, the second of four lectures planned for the Systemic Design course in the Master’s program in Strategic Foresight and Innovation at OCAD University proceeded as a timeboxed presentation:  targeting 40 minutes of content (skipping slides to stay within time constraints), followed by 10 minutes of discussion.  Since the slides are rich with content and links to sources, students were directed to pay attention to what I was saying, over trying to read the slides projected behind me. 

The agenda was in four sections:

  • [preamble] Errors, Attention and Traps (Ecological Understanding)
    • Systems Changes Learning Circle (Bateson, Gibson, Ingold)
    • (Resistances to) Changing as primary system of interest
  • A. Socio-Ecological Systems Perspective
    • Tavistock Institute (Emery, Trist)
    • Organization as primary system of interest
  • B. (Social-) Ecological Systems  + Panarchy
    • Stockholm Resilience Centre (Holling, Walker, Peterson)
    • Ecology as primary system of interest
  • C. The Ecosystem Approach
    • Resilience Alliance (Waltner-Toews, Kay)
    • Sustainable development project as primary system of interest

Online, the video is available on Youtube for streaming.

Viewers who prefer to watch video on a disconnected device can download a video file.

Video H.264 MP4 WebM

System types as purposeful, and displaying choice

Russell Ackoff has a four-way categorization of systems that I’ve found useful, and often shows up in my presentations.  I’ve had a history of citing a 1996 article that is peer-reviewed.  However, when I first saw him in person, speaking with an overhead slide projector in 1997, I recalled a slightly different language.  I’ve now discovered an article that is consistent with my memory.

In 1996, Ackoff & Gharajedaghi wrote (in a language consistent with the Ackoff & Emery 1972 On Purposeful Systems book):

Whatever one considers a system to be — and there is considerable agreement as to what a system is — there are obviously different ways of classifying them.  For example, they can be classified by size, by discipline (physical, biological, psychological, and so on), by location, by function, and many other ways as well.  The choice of a classification scheme normally depends on its intended use.  For our purposes — examining the consequences of mismatching systems and their models — the critical classifying variable is purpose and purpose is a matter of choice.

An entity is purposeful if it can produce (1) the same functionally defined outcome in different ways in the same environment, and (2) functionally different outcomes in the same and different environments.  Although the ability to make choices is necessary for purposefulness, it is not sufficient.  An entity that can behave differently but produce only one outcome in any one of a set of different environments is goal-seeking, not purposeful.  Servo-mechanisms are goal-seeking.  In contrast, people are obviously purposeful systems, and so are certain types of social groups.  An entity can be multi-goal-seeking if it is goal-seeking in each of two of more different environments.

Types of Systems and Models

There are three basic types of systems and models of them, and a meta-system:  one that contains all three types as parts of it (see Table 1):

Table 1: Types of systems and models
Systems and models Parts Whole
Deterministic Not purposeful Not purposeful
Animated Not purposeful Purposeful
Social Purposeful Purposeful
Ecological Purposeful Not purposeful

(1) Deterministic:  systems and models in which neither the parts nor the whole are purposeful.

(2) Animated:  systems and models in which the whole is purposeful but the parts are not.

(3) Social:  systems and models in which both the parts and the whole are purposeful.

These three types of systems form a hierarchy in the following sense: animated systems have deterministic systems as their parts.  In addition, some of them can create and use deterministic systems, but not vice-versa.  Social systems have animated systems as their parts.  All three types of system are contained in ecological systems, some of whose parts are purposeful, but not the whole.  For example, Earth is an ecological sysetm that has no purpose of its own but contains social and animate systems that do, and deterministic systems that don’t.  [pp. 13-14]

In the unreviewed 2003 paper, Ackoff & Gharajedaghi footnoted “1. This article is a revision and extension of an article we published earlier: “Reflections on Systems and Their Models,” Systems Research, Vol. 13, No. 1, March 1996, pp. 13-23″.  The table that appears in 2003 is different from that in 1996:

Russell Ackoff has a four-way categorization of systems that I’ve found useful, and often shows up in my presentations.  I’ve had a history of citing a 1996 article that is peer-reviewed.  However, when I first saw him in person, speaking with an overhead slide projector in 1997, I recalled a slightly different language.  I’ve now discovered an article that is consistent with my memory.

In 1996, Ackoff & Gharajedaghi wrote (in a language consistent with the Ackoff & Emery 1972 On Purposeful Systems book):

Whatever one considers a system to be — and there is considerable agreement as to what a system is — there are obviously different ways of classifying them.  For example, they can be classified by size, by discipline (physical, biological, psychological, and so on), by location, by function, and many other ways as well.  The choice of a classification scheme normally depends on its intended use.  For our purposes — examining the consequences of mismatching systems and their models — the critical classifying variable is purpose and purpose is a matter of choice.

An entity is purposeful if it can produce (1) the same functionally defined outcome in different ways in the same environment, and (2) functionally different outcomes in the same and different environments.  Although the ability to make choices is necessary for purposefulness, it is not sufficient.  An entity that can behave differently but produce only one outcome in any one of a set of different environments is goal-seeking, not purposeful.  Servo-mechanisms are goal-seeking.  In contrast, people are obviously purposeful systems, and so are certain types of social groups.  An entity can be multi-goal-seeking if it is goal-seeking in each of two of more different environments.

Types of Systems and Models

There are three basic types of systems and models of them, and a meta-system:  one that contains all three types as parts of it (see Table 1):

Table 1: Types of systems and models
Systems and models Parts Whole
Deterministic Not purposeful Not purposeful
Animated Not purposeful Purposeful
Social Purposeful Purposeful
Ecological Purposeful Not purposeful

(1) Deterministic:  systems and models in which neither the parts nor the whole are purposeful.

(2) Animated:  systems and models in which the whole is purposeful but the parts are not.

(3) Social:  systems and models in which both the parts and the whole are purposeful.

These three types of systems form a hierarchy in the following sense: animated systems have deterministic systems as their parts.  In addition, some of them can create and use deterministic systems, but not vice-versa.  Social systems have animated systems as their parts.  All three types of system are contained in ecological systems, some of whose parts are purposeful, but not the whole.  For example, Earth is an ecological sysetm that has no purpose of its own but contains social and animate systems that do, and deterministic systems that don’t.  [pp. 13-14]

In the unreviewed 2003 paper, Ackoff & Gharajedaghi footnoted “1. This article is a revision and extension of an article we published earlier: “Reflections on Systems and Their Models,” Systems Research, Vol. 13, No. 1, March 1996, pp. 13-23″.  The table that appears in 2003 is different from that in 1996:

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