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November-December, 2012
CST's Two Ways: A Concise Account of Critical Systems Thinking
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Introductory note. This is a prepublication version of an article written for
WER NER ULRICH'S BIO
the third edition of the Encyclopedia of Operations Research and
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Management Science, edited by Saul I. Gass and Michael C. Fu, to be
READINGS ON CSH
published by Springer New York in June, 2013 (Gass and Fu, 2013). The
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final version of the article was accepted for publication in the Encyclopedia
HARD COPIES
on November 3, 2011. As the publication of the Encyclopedia is
CRITICAL SYSTEMS
HEURISTICS (CSH)
experiencing some delay (it should originally have been published in May,
CST FOR PROFESSIONALS
& CITIZENS
A TRIBUTE TO
C.W. CHURCHMAN
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For a hyperlinked overview
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2012), I have decided to prepare this prepublication version.
Due to its format of an encyclopedia entry, this article differs a bit from the
content and style of my usual Bimonthly essays. Rather than exploring
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mainly new territory, it reviews established but not always accurate views on
ULRICH'S BIMONTHLY
(formerly Picture of the Month)
what critical systems thinking (CST) is and how its two current main strands,
COPYRIGHT NOTE
as represented by the work of my British colleagues on total systems
A NOTE ON PLAGIARISM
intervention (TSI) or "creative holism" on the one hand and my work on
CONTACT
critical systems heuristics (CSH) or "boundary critique" on the other hand,
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relate to one another. Conforming to the requirements of an encyclopedic
work, the article seeks to provide a neutral, fair, and accurate account of both
strands, giving equal weight to different notions of CST regardless of the
extent to which I share them. To facilitate comparison, it presents the two
strands of CST in a strictly parallel manner, using the same structure and the
same criteria. In short, it aims to offer a concise and rigorous, non-partisan
account of CST's two ways.
Despite the focus on informing readers about current ideas rather than
exploring new ones, there are two novel aspects. First, to my knowledge a
comparative, concise and non-partisan account of this kind has not been
available thus far. It should thus come as good news to those readers who
have been looking in vain for such an overall account of CST. And second,
the comparative approach leads to a finding that does in fact open up some
new territory. Counter to the established wisdom, according to which the two
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strands of CST represent largely incompatible notions of "critical"
professional practice, it turns out that they share a central concern: both aim
to support professionals in dealing systematically with the "bigger picture" of
the problem contexts or situations in which they are expected to provide
competent advice. To this end, both frameworks focus on the contextual
assumptions on which all professional intervention and advice depends.
Either approach does this in a new and specific way; both do it
systematically; neither replaces the other. I have found this theme of
developing the contextual sophistication of professionals so important that
meanwhile, I have dedicated to it a further-reaching theoretical contribution
(see Ulrich, 2012a, b).
Suggested citation: Ulrich, W (2013). Critical systems thinking. In S.I. Gass, and M.C. Fu
(eds.), Encyclopedia of Operations Research and Management Science, 3rd edition., New
York: Springer. Prepublication version: CST's two ways: A concise account of critical systems
thinking. Ulrich's Bimonthly, November-December 2012,
http://wulrich.com/bimonthly_november2012.html.
Introduction: systems thinking about good practice
Critical systems thinking (CST) is a development of systems thinking that
aims to support good practice of all forms of applied systems thinking and
professional intervention. In its simplest definition, CST is applied systems
thinking in the service of good practice. Three essential ideas are that:
1. Professional practice in all its stages and activities, from the
formulation of problems to the implementation of solutions and the
evaluation of outcomes, involves choices that need to be made
transparent and require systematic examination and validation.
2. Systems thinking, although it does not protect against the need for
such choices, at least offers a methodological basis for examining
them systematically.
3. Consequently, applied systems thinking should make it standard
practice to employ not only a hard (quantitative, scientific) and/or a
soft (qualitative, interpretive) but always also a systematically critical
(reflective, questioning) perspective and mode of analysis.
Taking these three elements together, CST not only recognizes that all
applied systems thinking involves choices in need of critical reflection but
also draws on systems thinking itself as a source of systematic critical
reflection and deliberation.
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CST and OR. Critical systems thinking has essential roots in operations
research and management science (OR/MS), along with some equally
important roots in philosophy, social theory, and other disciplines. It has
applications in OR/MS as well as in many other professional fields that it is
increasingly influencing; among them are environmental planning and
management, public policy analysis, information systems design, social
planning, evaluation research, technology assessment and risk regulation,
and others. Unlike most of these fields, OR/MS was from the outset
conceived as applied systems thinking: its systems perspective was to
distinguish it from conventional notions of applied science and professional
intervention. Critical systems thinking may be understood as an expansion of
that original idea. CST's focus is on the fundamental theoretical and
normative assumptions that inform the formulation and analysis of problems
within their contexts, rather than on the more technical aspects of model
building, analysis, and validation, or on procedural aspects of project
management and consensus formation.
Two main sources of CST within OR/MS. Critical systems thinking
developed from the confluence of two largely independent strands of thought
about OR practice. The first strand originated in the 1970s at the University
of California at Berkeley and can be regarded as a development of, and
response to, Churchman's (1968, 1971, and 1979) philosophy of social
systems design, which itself was a development of his earlier pioneering
work on OR/MS (Churchman, Ackoff, and Arnoff, 1957). The second strand
originated in the 1980s at the University of Hull in England and can be
regarded as a response to the development, in British OR, of soft systems
methodology (Checkland, 1981, 1985; Checkland and Scholes, 1990), along
with a number of soft OR methods or problem structuring methods
(Rosenhead, 1989) and some other approaches to complex and dynamic
problem contexts (e.g., management cybernetics and viable systems
diagnosis, Beer, 1972, 1985), all of which not only led to a growing variety
of methods and underlying research paradigms but also to a perception of
paradigmatic insecurity or crisis in parts of the OR profession.
Two key issues of critical systems thinking. CST responded to these
developments
in American and
British
OR/MS
by
focusing its
methodological efforts on two key issues:
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1. The first issue emerged from recognizing that the way professionals
understand and define problem contexts has value implications, in the
practical sense that it may do more or less justice to the different views
and needs of people. Professional practice cannot avoid, in every
specific context of intervention, choices as to what views
(observations, data) and what needs (concerns, interests) of people are
to be considered relevant and what other views and needs should not
or cannot be considered equally relevant. The question is: “What
should constitute the basis of knowledge and values for rational
practice?” When it comes to this normative core of practice, there is a
need to support professionals and everyone else concerned in handling
their assumptions in a transparent and self-critical way, as well as to
deal adequately with the consequences these assumptions may have
for the different parties concerned.
2. The second issue emerged from recognizing that different problem
situations put different demands on professional competence and
accordingly also on the methods professionals use. Professional
practice cannot avoid, in defining and employing its methods of
analysis and intervention, assumptions about the nature of problem
situations, particularly with respect to the kind of complexity that
matters; for real-world complexity takes different forms and there is
consequently no single best way to understand and handle it. The
question is: “What are the assumptions, strengths and weaknesses of
different approaches and methods regarding the nature of problem
contexts, that is, different kinds of social reality?" When it comes to
the variety of methodological options available today in applied
systems thinking, there is a need to support professionals in handling
these options in a theoretically informed and justifiable way.
Critical systems thinking, then, is the use of systems ideas for probing into
these two different (though not entirely independent) sources of contextual
selectivity, that is, assumptions that shape the understanding and handling of
problem contexts – the selection of relevant facts and values, and the
selection of adequate methodologies and methods. Both shape the way
problems will be understood within their contexts. However, they place
rather different demands on good practice. What assumptions different
systems approaches make regarding the nature and complexity of problem
contexts depends on their theoretical underpinnings and thus can be
identified theoretically once and for all; good practice in this respect means
informed methodology choice. By contrast, relevant facts and values need to
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be identified anew in each specific problem situation and therefore are
mainly a responsibility of practice itself; good practice in this respect means
reflective practice.
Two different strands of critical systems thinking have accordingly
developed: critical systems heuristics (CSH) and total systems intervention
(TSI). Their shared core idea is that systems thinking can be a useful source
of
critical reflection about
contextual
selectivity. A
precise yet
comprehensive definition of CST may therefore be formulated as follows.
Definition: Critical systems thinking (CST) is an application of systems
thinking that aims to support good practice with regard to (a) the
normative core of the knowledge and value basis that informs
professional findings and conclusions and (b) the theoretical
assumptions that inform the variety of methodologies and methods
employed. The common denominator of (a) and (b) is that they both
condition the perception of relevant problem contexts.
Terminology: CST, CSH, and TSI. The term "critical systems thinking" was
coined in July 1989, when the originators of the two strands met at the 33rd
Annual Conference of the International Society for the Systems Sciences
(ISSS) in Edinburgh, Scotland, and decided to unite their efforts under the
umbrella of critical systems thinking. Due to differing methodological
conceptions and philosophical backgrounds, the cooperation between the two
strands of CST remained a brief episode in the late 1980s and early 1990s;
but the term CST has survived as a name for their shared interest in handling
contextual assumptions critically.
Some confusion was subsequently caused by the circumstance that both
strands have continued to refer to their efforts as critical systems thinking.
For the sake of terminological clarity, it is advisable to use the term as a
higher-level concept under which CSH and TSI may meaningfully be
subsumed, rather than identifying it with either strand (see Fig. 1).
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Fig. 1: Critical systems thinking (CST) and its two strands – basic terminology
(Source: adapted from Ulrich, 2003, p. 327)
Due to their separate development and also to different theoretical
foundations, the two strands, despite their shared core idea and
complementary ends, have brought forth partly incompatible frameworks for
CST. They are therefore introduced separately. However, to facilitate
comparison and synthesis, the account follows the same structure and uses
the same criteria.
Critical systems heuristics (CSH): facing the normative core of
professional practice
CSH was fully worked out in the late 1970s at the University of California at
Berkeley but became widely known only in the early 1980s, when the main
theoretical work (Ulrich, 1983) was published with some delay after the
author's return to Switzerland. With a view to submitting his work to the test
of practice, Ulrich assumed a position as chief policy analyst and evaluation
researcher in the public sector and also returned to teaching at his home
university, the University of Fribourg (Philosophical Faculty). This double
experience in public policy making and university teaching has helped Ulrich
to develop CSH continuously since. CSH has meanwhile found resonance
November 2012
and applications in many applied disciplines and is gradually evolving into a
more comprehensive framework for reflective practice in the civil society
(Ulrich, 2000), critical pragmatism (Ulrich, 2006 and 2007), and philosophy
Su Mo Tu
.
4 5 6
11 12 13
18 19 20
25 26 27
We
.
7
14
21
28
Th
1
.8
15
22
29
Fr
2
.9
16
23
30
Sa
3
10
17
24
for professionals (Ulrich, 2007).
December 2012
Core idea. Professional practice involves validity claims (e.g., to truth,
rightness, sincerity, objectivity, rationality, and relevance) that have practical
consequences but which it cannot fully justify. Applied systems thinking
Su Mo Tu We
.
2 3 4 5
.9 10 11 12
16 17 18 19
23 24 25 26
Th
.
6
13
20
27
Fr
.
.7
14
21
Sa
1
.8
15
22
makes no exception, for its effort to appreciate the systemic nature of
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problems and thus, to gain a comprehensive or whole-systems view of
problem situations, does not supersede the need for making value judgments
as to what exactly is to be considered the problem to be dealt with (i.e., what
merits improvement); what constitutes the relevant problem context (i.e.,
what is the sum-total of the relevant facts and concerns); and wherein would
consist a good solution (i.e., how to define improvement). No kind of
systems methodology or other methodology can fully justify the answers to
such inevitable questions as “Whose problem is to be solved in the first
place?” and “For whom should improvement be achieved and for whom
not?” What is possible, however, is a conscious and careful handling of this
normative core of all professional intervention.
Critical systems thinking as understood in CSH therefore begins with the
idea
that
holistic
or
whole-systems
thinking
–
the
quest
for
comprehensiveness – is a meaningful effort but not a meaningful claim.
Doing full and equal justice to the views and values of all the people
concerned is an ideal; but applied systems thinking should not be expected to
achieve ideals. To put it differently, holism is not a philosophically and
methodologically credible source of justification, it is a problem. Hence,
rather than trying to be holistic, CSH tries to support practice – professionals
as well as ordinary citizens – in appreciating the inevitable selectivity of the
claims involved (e.g., to putting a problem well and to securing
improvement) with regard to the facts (observations) and values (concerns) it
takes to be relevant and on which its rationality and consequences depend.
In practical contexts of action, selectivity usually translates into partiality, in
the sense that different parties will be affected differently. CSH consequently
also aims to help professionals and citizens in analyzing these consequences
and how they may change if assumptions about relevant observations and
concerns are modified. Good practice cannot avoid selectivity and partiality,
but it will make it transparent to all those concerned how the selectivity of
assumptions and the partiality of consequences depend on one another. It will
give all the parties an opportunity to articulate their critique, and will then try
to modify assumptions and consequences accordingly. Critical systems
thinking, thus understood, is reflective practice – a methodologically
disciplined effort to support such processes of critique systematically.
Methodological approach. CSH is both a new philosophical foundation and
a practical implementation of a discursive framework for value clarification
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and critique. Like the previously used concept of the normative core of
rational practice, the term "value clarification" again refers to the selectivity
of both considerations of facts (the empirical or knowledge basis of rational
action) and of values (the normative or value basis of rational action) in
contexts of practical action. The choice of the knowledge basis of
professional interventions – of relevant data, judgments of fact, personal
views, and other empirical conjectures (e.g., anticipated consequences of
action) – has no less normative implications than has the choice of its value
basis, that is, of relevant concerns, notions of improvement, and ethical
standards. Both sources of selectivity and partiality demand a critical
handling.
But applied systems thinking not only implies empirical and normative
selectivity, it also holds a key to handling such selectivity critically. Systems
thinking compels professionals, as well as everyone else concerned, to pay
attention to the systems boundaries that delimit any specific system of
interest. Systems thinking can thus be understood as a tool for reflecting
about the boundaries of concern that (consciously or not) inform all analysis
of problems and related proposals and arguments, regardless of whether
systems terms are used in the first place or others. Systems thinking then
becomes a source of critique – of questioning boundary assumptions and the
ways they condition validity claims – rather than, as it is more usually
understood, a source of justification, that is, a way of buttressing validity
claims by more comprehensive considerations of fact and value.
In the terms of CSH, critical systems thinking can support professionals and
all the parties concerned in identifying and questioning boundary judgments
that delimit the reference systems for defining problems and relevant
contexts, solution designs, evaluations, proposals for action, and so on.
Boundary judgments determine for a number of basic boundary issues and
related boundary categories what is to be considered and what is to be left
out when it comes to defining relevant observations (judgments of fact) and
concerns (judgments of value). A reference system is the set of boundary
judgments that together define the context of application to which a specific
claim or proposal refers and for which it is valid.
Boundary judgments are the perfect device for questioning the relevance and
quality of reference systems; for unlike what one might assume at first
glance, they define not just the scope of the context considered (i.e., how
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narrow or comprehensive it is delimitated) but equally its content, that is,
what observations about that context are collected and taken to be relevant,
how they are formulated, interpreted and used, what importance is attached
to them and how well related conjectures are argued. This is so because any
aspects of a problem situation that are not properly considered, say, because
those involved argue incoherently or anticipate consequences incorrectly, or
fail to do justice to the concerns of others, have in fact been excluded from
the relevant knowledge and value basis. Even if one recognizes some aspects
as relevant and agrees with others they should be considered but then fails to
take them properly into account, due to lacking knowledge, to an error of
judgment or some communicative misunderstanding, or because those in
control of the situation decide to suppress their discussion, these aspects
have in fact (deliberately or not) been excluded from the considered
reference system. Thus the argumentative quality of a validity claim or
related discussion very well reflects itself in boundary judgments.
The main device to promote such argumentative quality is critical systems
discourse, a dialogical form of boundary critique. Boundary critique is
basically a systematic process of identifying the boundary judgments that are
built into any specific validity claims, in an effort to unfold their normative
core (selectivity) and what it may mean for the parties concerned (partiality).
A second basic aim is to show that there are always options for defining
boundary judgments, and to make it visible how different the claims in
question may look in the light of such options. In cooperative settings where
the parties are prepared to try and see whether they can agree on their
boundary judgments, these can then be modified accordingly. In
controversial settings this may not be possible; boundary critique then gains
a new meaning and consists in employing boundary judgments for critical
purposes against those who are not prepared to disclose and question them or
who even try to impose them on the basis of authority and power rather than
argumentation. Critical systems discourse thus becomes a discursive process
of challenging validity claims by demonstrating that and how they depend on
boundary judgments that have not been declared or are imposed by
non-argumentative means.
To be sure, selectivity, not comprehensiveness, is the fate of everyone who
tries to solve problems and to do something about the state of the world. The
in
point of boundary critique consists, in the terms of CSH, is a critical turn of
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applied systems thinking and its notion of good professional practice. It
recognizes that there is no objective but only a critical solution to the
fundamental problem of practical reason, of how claims to rational practice
can be justified in the face of their inevitable selectivity and partiality. The
problem has remained unresolved in practical philosophy, the philosophical
discipline concerned with the normative dimension of rational action, in that
no theoretical solutions have been found that would at the same time be
practicable (a more complete account of the concept of a critical solution is
given in Ulrich, 1983, 2001, and 2003).
Methodological core principle. CSH's answer to the unresolved problem of
practical reason is the principle of boundary critique. It says that both the
meaning and the validity of claims depend on the reference system to which
these claims refer, and hence, that one cannot understand and qualify
(appreciate and criticize) their adequacy without examining the boundary
judgments that define that reference system. The basic idea and aim of CSH,
then, is to support systematic processes of boundary critique as a way to
secure at least a critical solution of the problem of practical reason. To this
end, there are 12 CSH boundary categories (see Fig. 2).
Fig. 2: Boundary categories of critical systems heuristics
(Source: Ulrich, 1983, p. 258)
These boundary categories stand for four crucial sources of selectivity built
into all practice. Each boundary category translates into two boundary
questions, one asking what is the case (“is” mapping, i.e., descriptive
analysis) and the other what should be the case (“ought” mapping, i.e.,
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normative analysis). This yields an extensive checklist of boundary questions
that explicitly define the precise intent of each boundary category (Ulrich,
1987, 1996, 2000; Ulrich and Reynolds, 2010). They can be used, first, to
identify boundary judgments systematically; second, to examine how
alternative boundary judgments may change the way one sees problem
definitions, findings, and conclusions, and thus what is considered to be
adequate and rational; and third, to challenge any claims to knowledge,
rationality or improvement that rely on hidden boundary judgments or take
them for granted.
The last-mentioned application leads to an argumentative employment of
boundary judgments, known as polemical or emancipatory boundary
critique, that creates an improved symmetry of critical competence among all
the parties concerned, professionals and citizens alike, regardless of their
theoretical knowledge or special expertise with respect to the problem at
issue. As a practicable model of cogent critical argumentation (Ulrich, 1983,
1993, 2000), it embodies a critical pragmatization of Habermas’ (1973,
1979) ideal model of rational practical discourse (a model that underpins his
discourse ethics and confines it to being a moral theory rather than a
practicable
model
of
moral
justification).
It
constitutes
a
chief
methodological backing of the critical turn of the concept of rational practice
proposed above.
In sum, CSH can be defined as a methodological framework for boundary
critique, that is, for identifying and debating boundary judgments, with the
aim of securing at least a critical solution to the unsolved problem of
practical reason – the question of how claims to rational practice can be
justified despite the unavoidable selectivity and partiality of all practice.
Despite its emancipatory implications (the aspect for which it is best known),
CSH should not be misunderstood and used as an emancipatory systems
approach only; its principle of systematic boundary critique is vital for sound
professional practice in general, whatever importance may be attached to
emancipatory issues. For the same reason, CSH does not aim to be a
self-contained systems methodology, but is better understood as an approach
that should inform all critical professional practice, whatever specific
methodology is used.
Practical implementation (main procedure): Boundary critique is best
implemented as an iterative process of reflecting on, and discussing, the
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implications of alternative boundary judgments. When some boundary
judgment changes, the reference system of which it is constitutive will
change, too; consequently, all other boundary judgments may need being
reconsidered and adapted. However, iterative processes are not particularly
easy to learn and to handle; experience with boundary critique suggests that
it is useful for beginners to have available, and follow, a standard sequence
for unfolding the boundary categories and questions of CSH (see Fig. 3).
Fig. 3: CSH's process of unfolding – a standard sequence of boundary critique
(Source: Ulrich and Reynolds, 2010, p. 259; adapted from Reynolds, 2007, p. 106)
Total systems intervention (TSI) or creative holism (CH) :
ensuring informed methodology choice
TSI stems from work done at the University of Hull, England, in the mid and
late 1980s, about the evolution of OR and systems thinking in terms of
changing underlying theoretical assumptions. This work resulted in the early
1990s in the proposal of a meta-methodology for choosing among
methodologies according to situational requirements (Flood and Jackson,
1991; Jackson, 1991). By that time CSH and TSI had joined their efforts
under the new name of “critical systems thinking” (CST), after previously
using different names such as critical systems approach (CSH) and critical
management science (TSI); but due to differing notions of what critical
practice was to mean, the two strands of CST ultimately found it difficult to
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integrate their approaches and consequently returned to developing their
frameworks separately. Both have nevertheless continued to use the name
critical systems thinking. Meanwhile, Jackson (2003, 2006b) refers to his
work on critical systems thinking and practice as creative holism (CH).
Core idea. Applied systems thinking depends for its choice of systems
methodologies and methods on basic assumptions regarding the nature of the
problem contexts (typically: organizational contexts) with which it is
dealing. Some of these assumptions can usefully be captured in terms of a
number of sociological paradigms for describing the nature of social reality
as they have been analyzed, for example, by Burrell and Morgan (1979), as
well as by organizational images or systems metaphors as they have been
described most systematically by Morgan (1986). Different systems
methodologies, because they usually are developed with different problem
contexts in mind, can similarly be characterized in terms of underlying
metaphors and paradigms. Hence, since the characteristics of both problem
contexts and systems methodologies can be captured in terms of adequate
paradigms and metaphors, it becomes possible to match contexts and
methodologies in a systematic way and thus to support professionals in
choosing among the increasing number of available systems methodologies
and conforming methods those best suited to deal with a problem situation at
hand.
CST as understood in TSI/CH therefore begins with the idea that systems
thinking – the attempt to understand organizational or societal problem
contexts in systems terms – is meaningful only to the extent people are aware
of the sociological paradigms and organizational metaphors that inform it.
Since different systems methodologies rely on different paradigms and
metaphors – that is, on different theoretical assumptions about the nature of
problem contexts – applied systems thinking depends for its justification and
rationality on paradigmatic fit between systems methodologies and problem
contexts.
In applied OR/MS, as in other forms of applied research, the requirement of
paradigmatic fit translates into a need for informing the selection and use of
methodologies and methods by previous paradigm analysis as well as, where
relevant, metaphor analysis, as a condition for doing justice to the nature of
the problem context at issue. TSI/CH consequently puts its critical focus on
the theoretical underpinnings of alternative research paradigms rather than,
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as does CSH, on the normative core of professional practice. CST, thus
understood, is about methodology choice – a theoretically informed way to
support processes of matching methodologies and methods with problem
contexts.
Methodological approach. The basic strategy of TSI/CH can be described as
a contingency approach to methodology choice, based on paradigm analysis
and, to a lesser degree, also on metaphor analysis of the three major
traditions of systems thinking thus far – hard, soft, and critical systems
thinking. The idea is that there is no such thing as a best systems
methodology and underpinning tradition of systems thinking; rather,
situational aspects of the problem context at hand determine what tradition of
systems thinking is best suited as a source of methodological guidance and
specific methods or tools of intervention. In OR/MS such an approach
promises to resolve the OR in crisis debate of the 1970s and 1980s; for it
allows hard and soft OR approaches to be seen as appropriate for dealing
with different problem contexts rather than competing for the same ones.
Contingency frameworks are also called contingency theories, as they
involve theoretical generalizations about the crucial aspects of the
application domain to which the framework is to be applied. This theoretical
device is often used in the social sciences (e.g., in management and
organization theories) when a variety of approaches is required to handle a
given class of problems, as the proper approach is dependent (contingent) on
the situation or, more precisely, on a range of changing situations.
Applied to contexts of professional intervention, using a contingency
approach implies that some independent (contextual) variables can be
identified empirically which regularly, for reasons that can be explained
theoretically, may be expected to condition the outcome of interventions. A
contingency approach can then (and only then) make sure that the way one
deals with a situation matches situational requirements, and on that basis can
also justify the credibility of the results. To the extent this condition is
fulfilled, one can properly speak of a contingency theory. It follows that the
crucial question for any contingency approach is whether it can identify and
theoretically justify a small number of empirical dimensions (ideally only
two) in terms of which the range of situations in question can be usefully
classified, so that each type of empirical situation can then be identified in a
relevant and reliable way.
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Methodological core principle. TSI/CH’s answer to the problem of ensuring
paradigmatic fit between intervention approaches and problem contexts is a
classification of problem contexts, and of systems methodologies assigned to
them, called the system of systems methodologies (SOSM). It says that
systems methodologies and conforming methods are well chosen if their
underlying systems metaphor (machine, organism, etc.) and/or paradigm
(functionalist, interpretive, etc.) match with the nature of the problem
context, or more exactly, with assumptions about the kind of complexity that
needs to be handled in the problem context. The basic idea and aim of
TSI/CH, then, is to support systematic processes of informed methodology
choice, as a way to secure paradigmatic fit between intervention methods and
intervention contexts. To this end, TSI/CH proposes the SOSM (see Fig. 4).
Fig. 4: The extended system of systems methodologies (SOSM)
(Source: adapted from Flood and Jackson, 1991, p. 42;
Jackson, 1991, pp. 29 and 31; 2000, p. 359)
(Click on the figure to enlarge it)
There was an earlier, four-celled version of the SOSM (Jackson and Keys,
1984) that is now often cited as the origin of the TSI strand of CST.
However, it only distinguished hard and soft methodologies and its
discussion in that early paper did not yet introduce the notion of critical
systems thinking.
CSH became known to Jackson and Keys shortly after publishing their 1984
paper. First hints at a planned extension of their work appeared in a few
articles in the late 1980s (Jackson, 1987, 1990); the extended SOSM was
presented later in Flood and Jackson (1991) and Jackson (1991).
Due to the underlying logic of the SOSM, the extended scheme could not
manage to include CSH except by constricting its notion of critical systems
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thinking considerably. This logic assumes that any methodology can be
meaningfully assigned to a single type of problem context and to a
conforming (dominant) theoretical paradigm. There is no room in such a
scheme for an approach that focuses on the genuinely normative core of
practice as such, whatever the theoretical paradigm adopted may be and the
choice of methodology and conforming methods it may inspire. This makes
it understandable why the extended SOSM rather arbitrarily assigned CSH a
merely emancipatory purpose, as opposed to the critical purpose of the
SOSM. To render this choice more plausible, CSH was associated with a
prison metaphor, which then seemed to render CSH adequate for coercive
problem contexts only and thus provided a rationale for assigning it to a
specific emancipatory paradigm (for critical discussion and alternatives, see
Ulrich, 2003). In this way, CSH became in the SOSM scheme an apparently
self-contained methodology that, quite against its original intentions, was to
be chosen (or not) as an alternative to soft and hard systems methodologies.
Its concern for the practical-normative side of all practice thus moved out of
sight.
In British OR/MS, CSH was henceforth understood mainly through the lens
of the SOSM, and critical systems thinking became widely identified with
TSI. Consequently, CST was now almost the same as the SOSM – an
updated contingency framework for methodology choice, as well as for
continuing discussions about the evolution of OR/MS (e.g., Jackson, 2006a).
Both uses attracted much interest and the mentioned difficulties of the
extended SOSM did not hamper its success in helping to raise awareness in
the profession that there are options for conceiving of good professional
practice. The discussion that the SOSM was able to generate has helped to
make CSH more known, so that its core principle of boundary critique is
increasingly being recognized as an important, independent source of critical
thought on practice. These diverse successes of the SOSM certainly have
contributed to the comparatively high level of methodological awareness and
discussion by which the OR/MS profession distinguishes itself from other
fields, which in turn has allowed it to pioneer soft and critical systems ideas
that are now radiating into many other fields.
Practical implementation (main procedure). To support methodology
choice in practice, the SOSM still needed to be embedded in a methodology
properly speaking, that is, a framework that would guide practitioners in
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asking relevant questions and proceeding systematically. This is what total
systems intervention (TSI), a name adopted in 1991, is all about. It stands for
the practical procedure of methodology choice and implementation that
Flood and Jackson (1991) proposed on the basis of the SOSM. The aim is to
provide a meta-methodology for methodology choice and implementation.
The procedure may be employed in a linear or iterative way. Originally it
consisted of three phases labeled creativity, choice, and implementation, to
which Jackson (2003, 2006b) later, in the extended version that he now
prefers to call creative holism, added a fourth phase, “Reflection” (see
Table 1).
Table 1: The meta-methodology of TSI/CH:
standard phases of methodology choice and use
(Source: adapted from Flood and Jackson, 1991, p. 54;
Jackson, 1991, p. 276; 2000, p. 372; and 2006b, p. 654)
Legend: TSI = total systems intervention = phases 1-3;
CH = creative holism = phases 1-4; SOSM = system of systems methodologies
The creativity phase is intended to encourage consideration of what
alternative systems paradigms and root metaphors might mean for thinking
about a problem context at hand, so that a dominant metaphor can be
identified as most adequate, that is, in effect, preference can be given to
either a hard (functionalist) or a soft (interpretive) or critical (emancipatory)
orientation.
In the choice and implementation phases, a conforming particular systems
methodology should then be chosen based on the SOSM and used to
implement specific change proposals.
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Finally, a new element in CH as compared to its predecessor TSI is the
reflection phase, which brings in an element of reflective practice as CSH
understands it, by looking at the outcomes of methodology choice and
implementation rather than at its theoretical justification only. Although the
underlying notion of evaluation is still not genuinely practical in the sense of
CSH and practical philosophy, this development does promise to open up
new chances for reflective practice.
Another new element, following a considerable amount of discussion in the
literature about methodological complementarism or pluralism (Jackson,
1997, 1999), mixing methods (Midgley, 1997), and multi-methodology
(Mingers and Gill, 1997), is that creative holism, unlike TSI, no longer
insists on choosing a single dominant paradigm. Instead, a combination of
methodologies, or parts of methodologies and conforming methods, is now
encouraged, which makes the framework more flexible and brings it closer to
actual practice. As Jackson describes it, CH now is a “meta-methodological”
framework that aims to help practitioners to “harness the various systems
methodologies, methods and models” by being “multi-paradigm, multimethodology and multi-method in orientation” (Jackson, 2006b, pp. 248 and
253).
A Summary Comparison of CSH and TSI
To provide an overview of the discussed aspects of critical systems thinking,
Table 2 summarizes the accounts of CSH and TSI in a way that should
facilitate comparison.
Table 2: CSH and TSI compared
Aspect
CSH
TSI / CH
Core idea
Professional practice involves
validity claims that cannot be
justified theoretically but at least
can be handled openly and
critically in the process of
intervention itself.
Professional practice involves
methodological choices that can
be justified theoretically by
analyzing underpinning research
paradigms and systems
metaphors.
Critical focus
Reflective practice: surfacing
the reference systems
underpinning all judgments of
fact and value, and analyzing
how they condition practical
claims (e.g., problem
definitions, relevant contexts,
standards of improvement, and
proposals for action).
Paradigm analysis: surfacing the
theoretical underpinnings of
alternative research paradigms
(e.g., functionalist, interpretive,
emancipatory, or post-modern)
and analyzing how they condition
different perceptions of problem
contexts and suitable
methodological choices.
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Approach
Critical systems discourse: a
discursive framework for value
clarification and critique.
Contingency theory: a
contingency framework for
methodology choice and use.
Methodological
core principle
Boundary critique: unfolding
the selectivity of reference
systems.
Informed methodology choice:
matching systems methodologies
with problem contexts.
Main critical
device
Checklist of boundary
questions: a definition of
boundary categories for “is” and
“ought” mapping (i.e.,
descriptive and normative
analysis) of reference systems.
System of systems methodologies
(SOSM): a classification of
problem contexts and conforming
systems methodologies.
Implementation
A discursive process of
unfolding selectivity: a standard
sequence of boundary critique.
A holistic meta-methodology of
paradigm analysis: standard
phases of methodology choice
and reflection.
Legend: CSH = critical systems heuristics;
TSI/CH = total systems intervention/creative holism
Conclusion: the essence of critical systems thinking
The claim of professional practice to relevance, rigor, and rationality
depends on many requirements. Among these, two crucial ones are putting
the problem well and tackling it by means of adequate methods. In different
ways, they both embody crucial requirements of professional competence.
They both stand for efforts to make sure that relevant issues are properly
identified and the implications of related assumptions are made transparent
and evaluated.
Putting problems well
is an issue that involves empirical
(observational) as well as normative (ethical) problem structuring and
reflection. The selection of relevant facts and values depends on a
proper understanding of the problem, which is hardly achievable
without questioning the scope and diversity of the social context that
matters. It also depends on the extent to which justice is done in
practice to the diversity of views and concerns of the different parties
concerned. A problem may be ill-defined so long as this normative
core of any quest for rational practice is not well understood.
Choosing and employing methods properly involves analysis and
reflection about the demands of problem situations on the one hand
and about the availability of methods that respond to these demands on
the other. The selection of adequate methodologies and methods
depends on a proper understanding of the theoretical and paradigmatic
assumptions involved, which is hardly achievable without questioning
the nature of the complexity that matters. It also depends on the extent
to which the matching of such assumptions with specific situations is
successful in practice. A methodology and conforming methods may
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be ill-chosen so long as this theoretical core of the quest for rational
practice is not well understood.
Neither effort replaces or precludes the other. Critical systems thinking,
properly understood, aims to promote good practice with regard to both. To
this end, the two strands of CST bring to bear within the field of OR/MS, and
in the applied sciences in general, new philosophical and theoretical
foundations, along with new practical tools for analyzing contextual
complexity and diversity. CSH draws on practical philosophy and
consequently conceives of rational practice in terms of discursive tools of
value clarification and critique, in particular boundary critique and discourse.
TSI/CH draws on organizational sociology and conceives of rational practice
in terms of theoretically informed tools of methodology choice, in particular
paradigm analysis and metaphor analysis.
Different as the resulting frameworks of CSH and TSI are, their shared
concern remains the idea that good professional practice depends crucially
on making sure that problems are well put and methods of intervention are
well chosen; and that to meet both requirements, it is essential to properly
situate problems in their contexts and make sure one understands those
contexts well. Formulated in everyday terms, the essential message of CST
to professionals might thus be summarized as follows:
Critical Systems Thinking: Its Operational Imperative
As a professional intervening in a specific context, pay attention to
your contextual assumptions and try to identify and examine them
systematically, so as to understand them well.
Then make sure everyone concerned understands them well, too.
How do they shape the facts and values people consider relevant?
Work towards mutual understanding about how problem definitions
and solutions depend on and change with the facts and values
considered relevant. Make sure divergent views and values are
properly addressed.
Adapt your choice of methodologies and methods to the amount of
diversity that you find in the problem context, and to the resulting
nature of the complexity that matters.
Whatever problem definitions and methods your professional practice
ultimately relies on, reflect on the validity claims your professional
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findings and conclusions imply and how, if taken as a basis for action,
they may affect the different parties concerned.
Make boundary critique a standard practice to this end, and always
remember that no professional intervention can do justice to all views
and values, that is, can justify all its implications.
And finally, deal with this inevitable lack of complete justification in
a transparent and self-reflecting way. This is what critical professional
practice is all about.
(Note: The third sentence of this "Operational Imperative" and its layout in seven
paragraphs have been added here to its original layout in the Encyclopedia article.)
Also see the following entries to the Encyclopedia: Community operations
research; Cybernetics and complex adaptive systems; Practice of operations
research and management science; Problem structuring methods; Soft
systems methodology; Systems analysis; Systems dynamics.
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Additional references for the Preliminary note:
Gass, S.I., and Fu, M.C. (eds.) (2013), Encyclopedia of Operations Research and Management
Science, 3rd edition. New York: Springer.
Ulrich, W. (2012a). Operational research and critical systems thinking – an integrated
perspective. Part 1: OR as applied systems thinking. Journal of the Operational Research
Society, 63, No. 9, pp. 1228-1247. Previously published as advance online publication, 14
December 2011.
Ulrich, W. (2012b). Operational research and critical systems thinking – an integrated
perspective. Part 2: OR as argumentative practice. Journal of the Operational Research
Society, 63, No. 9 (September), pp. 1307-1322. Previously published as advance online
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publication, 14 December 2011.
Suggested citation of the present prepublication article:
Ulrich, W (2013). Critical systems thinking. In S.I. Gass and M.C. Fu (eds.), Encyclopedia of
Operations Research and Management Science, 3rd edition, New York: Springer.
Prepublication version: CST's two ways: a concise account of critical systems thinking.
Ulrich's Bimonthly, November-December 2012,
http://wulrich.com/bimonthly_november2012.html.
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November-December, 2012
A careful look at two ways of critical systems thinking (CST)
„How can critical systems thinking support professionals?”
In two different but complementary ways, says this essay.
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