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  <front>
    <journal-meta />
    <article-meta>
      <title-group>
        <article-title>Linking Autopoiesis to Homeostasis in Socio-Technical Systems</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author">
          <string-name>Ilia Bider</string-name>
          <email>ilia@dsv.su.se</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Gil Regev</string-name>
          <email>gil.regev@epfl.ch</email>
          <xref ref-type="aff" rid="aff1">1</xref>
        </contrib>
        <contrib contrib-type="author">
          <string-name>Erik Perjons</string-name>
          <email>perjons@dsv.su.se</email>
          <xref ref-type="aff" rid="aff0">0</xref>
        </contrib>
        <aff id="aff0">
          <label>0</label>
          <institution>DSV, Stockholm University</institution>
          ,
          <addr-line>Stockholm</addr-line>
        </aff>
        <aff id="aff1">
          <label>1</label>
          <institution>Ecole Polytechnique Fédérale de Lausanne (EPFL), School of Computer and Communication Sciences</institution>
          ,
          <addr-line>CH-1015 Lausanne</addr-line>
          ,
          <country country="CH">Switzerland</country>
        </aff>
      </contrib-group>
      <fpage>160</fpage>
      <lpage>170</lpage>
      <abstract>
        <p>The paper considers two seemingly different fundamental theoretical concepts of autopoiesis and homeostasis and tries to apply them to the realm of socio-technical systems. The paper uses a so-called Fractal Enterprise Model (FEM) to explain how autopoiesis - a system constantly reproducing itself - and homeostasis - a system constantly maintaining an approximate identity while adapting to changes in its internal and external environment - works, and how they are connected to each other. The work presented in this paper is in its initial stage, and more efforts are required to convert the ideas presented in the paper to something that can be used in practice.</p>
      </abstract>
      <kwd-group>
        <kwd>socio-technical</kwd>
        <kwd>autopoiesis</kwd>
        <kwd>homeostasis</kwd>
        <kwd>fractal enterprise model</kwd>
      </kwd-group>
    </article-meta>
  </front>
  <body>
    <sec id="sec-1">
      <title>-</title>
      <p>
        The term autopoiesis comes from biological cybernetics, first introduced in [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ] to
identify the particulars of living systems that differentiate them from other type of systems.
The term means that a living system constantly reproduces itself. More exactly, an
autopoietic living system/organism, according to the original authors who coined the
term, consists of a network of molecular processes that constantly reproduce the
components of the system.
      </p>
      <p>
        Though the term autopoiesis was introduced for describing biological systems, it
soon was reinterpreted for other types of systems, sociological systems in the first place.
The most known application of the concept of autopoiesis to the realm of the social
world is the one introduced by N. Luhmann [
        <xref ref-type="bibr" rid="ref2">2</xref>
        ]. Luhmann identifies two types of
autopoietic systems, a system of communication, and a system of decision (an
organization). The first one always produce new communication acts based on already existing
ones, the second constantly produce new decisions based on already made ones.
Luhmann was not the only one who applied the concept of autopoiesis to the social realm.
The literature on this topic is vast; it includes books, e.g. [
        <xref ref-type="bibr" rid="ref3">3</xref>
        ], and articles, and it
encompasses different ideas of what is being reproduced by a system. One of the most used
ideas of what is to be reproduced, besides what Luhmann has proposed, is knowledge,
see, for example, [
        <xref ref-type="bibr" rid="ref4">4</xref>
        ].
      </p>
      <p>
        Using the concept of autopoiesis outside biology is still a controversial issue. The
opinions on this issue range from disagreement from the authors of the concept, to
considering any autopoietic system as being a social system. The latter is promoted by
Milan Zeleny and his group, see, for example, [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ] where they present examples of social
system showing that they all satisfy the 6 point test suggested in [
        <xref ref-type="bibr" rid="ref1">1</xref>
        ]. In this respect, it
is interesting to read [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ] which includes post-reviews from the major personalities
related to the concept of autopoiesis, including Humberto R. Maturana and Milan Zeleny.
      </p>
      <p>
        Though the original concept of autopoiesis in biological systems was focused on the
reproduction processes, what is being reproduced is also considered important. This is
true even for biology itself, see, for example, [
        <xref ref-type="bibr" rid="ref7">7</xref>
        ], which argues that considering an
autopoietic system just as a network of processes is not enough; the body of an
organism should also be taken into consideration.
      </p>
      <p>
        The question that we want to raise in this paper is whether it is possible to apply the
concept of autopoiesis to socio-technical systems. As socio-technical systems are
considered as consisting of two components social and technical, applying the concept of
autopoiesis to such systems implies reproducing both components. Moreover, if we
consider that each component can be split in two parts according to a classical
SocioTechnical System (STS) matrix [
        <xref ref-type="bibr" rid="ref8">8</xref>
        ], applying the concept of autopoiesis means
reproducing, people, structure, tasks and technology. In summary, when applying the
concept of autopoiesis to a socio-technical system, such as an enterprise, we need to answer
two questions:
      </p>
    </sec>
    <sec id="sec-2">
      <title>1. What is reproduced (body)?</title>
      <p>
        2. How is it done (network of processes)?
In parallel to the concept of autopoiesis that is focused on the system constantly
reproducing itself, there is a seemingly different concept, called homeostasis, of a system
maintaining an approximate identity despite it being made of unstable material and
subject to an ever changing environment [
        <xref ref-type="bibr" rid="ref9">9</xref>
        ]. Despite the different focuses and different
assumptions, e.g. close system for autopoiesis vs. open system for homeostasis, there
is a connection between these two concepts. Therefore, in addition to the two questions
we formulated above, we will consider a third one:
3. How the autopoietic activities help with homeostasis, i.e. adapting the system to the
changes inside and outside the system while maintaining its identity.
      </p>
      <p>
        To answer the above questions, we will be using a special type of enterprise models
called a Fractal Enterprise Model (FEM) [
        <xref ref-type="bibr" rid="ref10">10</xref>
        ]. FEM has a form of a directed graph with
two types of nodes Processes and Assets, where the arrows (edges) from assets to
processes show which assets are utilized by which processes and arrows from processes to
assets show which processes help to have specific assets in "healthy" and working
order. The arrows are labeled with meta-tags that show in what way a given asset is
utilized, e.g. as workforce, reputation, infrastructure, etc., or in what way a given
process helps to have the given assets “in order”, i.e. acquire, maintain or retire.
      </p>
      <p>A FEM is built recursively by using a so-called unfolding procedure and two types
of archetypes: process-assets archetypes that show which kind of assets might be
needed for running a process, and an asset-processes archetype that shows which
processes are needed to maintain an asset in order. Unfolding starts with a primary process
- a process that delivers value to a customer/beneficiary - by applying process-assets
archetypes and alternating them with the asset-processes archetype.</p>
      <p>The presence of such processes as acquire, maintain and retire makes FEM
interesting when considering autopoiesis and homeostasis in socio-technical systems. These
processes are the ones that constitute the net of processes responsible for autopiesis.
They, also, are the ones that can inform the system of changes in its internal or external
environment.</p>
      <p>
        The rest of the paper is structured in the following manner. In Section 2, we present
our knowledge base, which includes Zeleny's approach to describing processes in
autopoietic systems [
        <xref ref-type="bibr" rid="ref5">5</xref>
        ], the notion of homeostasis and FEM. In Section 3, we use FEM
to answer the first two questions posed above. Section 4 is devoted to answering the
third question. Section 5 contains concluding remarks and plans for the future.
2
2.1
      </p>
      <sec id="sec-2-1">
        <title>Knowledge base</title>
        <sec id="sec-2-1-1">
          <title>General Processes in Autopoietic Systems</title>
          <p>
            According to Zeleny [
            <xref ref-type="bibr" rid="ref5">5</xref>
            ], there are three general types of processes in an autopoietic
system: (1) Degradation, (2) Production and (3) Bonding, see Fig. 1.
          </p>
        </sec>
      </sec>
    </sec>
    <sec id="sec-3">
      <title>Degradation</title>
    </sec>
    <sec id="sec-4">
      <title>Bonding</title>
    </sec>
    <sec id="sec-5">
      <title>Production</title>
      <p>
        Production is a process of creating new components. Bonding is a process of
introducing new components into the system structure. Degradation is a natural process of
components aging and falling out of the system structure, which requires production of new
components to be bound into the structure. The specific meaning of these generic
processes depends on the system in question. In a post-review by Zeleny [
        <xref ref-type="bibr" rid="ref6">6</xref>
        ] there are
several examples of instantiation of the generic process.
2.2
      </p>
      <sec id="sec-5-1">
        <title>Homeostasis</title>
        <p>
          The concept of homeostasis predates autopoiesis by about 40 years. It was defined by
Cannon in the 1920s [
          <xref ref-type="bibr" rid="ref9">9</xref>
          ] based on research done during the 19th century by Claude
Bernard. Just like Maturana and Varela, Cannon (and other Physiologists) attempted to
explain the mystery of life.
        </p>
        <p>
          Cannon stipulated that what distinguishes the living organism is its ability to
maintain constancy despite it being subjected to internal and external perturbations. This
constancy, Cannon claimed, is the source of freedom of action [
          <xref ref-type="bibr" rid="ref11">11</xref>
          ], [
          <xref ref-type="bibr" rid="ref12">12</xref>
          ]. The better the
living organism maintains its constancy the more it can take control of its environment.
Mammals, for example, have better mechanisms than reptiles for maintaining the
constancy of their body temperature and are therefore better able to function irrespective
of the ambient temperature.
        </p>
        <p>
          Autopoiesis can be seen as a special case of homeostasis because constantly
reproducing itself is one consequence of the maintenance of global constancy. Homeostasis
is also more general because it applies to any open system that is [
          <xref ref-type="bibr" rid="ref9">9</xref>
          ]: “compounded of
unstable material and subjected continually to disturbing conditions.” i.e. systems that
are subject to the second law of thermodynamics, the increase of entropy (disorder) in
any closed portion of the universe [
          <xref ref-type="bibr" rid="ref12">12</xref>
          ].
        </p>
        <p>Autopoiesis, on the contrary, is principally applied to the description of living
systems, which it defines as closed systems.</p>
        <p>
          Cannon enounced 6 propositions that define a homeostatic system [ [
          <xref ref-type="bibr" rid="ref12">12</xref>
          ]. The first one
is sufficient for our present discussion. It says that [
          <xref ref-type="bibr" rid="ref9">9</xref>
          ], [
          <xref ref-type="bibr" rid="ref12">12</xref>
          ]:
        </p>
        <p>In an open system, such as our bodies represent, compounded
of unstable material and subjected continually to disturbing
conditions, constancy is in itself evidence that agencies are
act</p>
        <p>ing or ready to act, to maintain this constancy.</p>
        <p>Thus, homeostasis explains both the process of degradation (unstable material and
disturbing conditions), the need for process of replacement, production and bonding,
(maintaining constancy). It also shows that both the internal environment and the
external environment are sources of change, mostly unwelcome change, that the system
attempts to deal with in order to maintain its constancy.</p>
        <p>
          Cannon envisioned that the principles of homeostasis could be applicable by analogy
to the study of social systems [
          <xref ref-type="bibr" rid="ref11">11</xref>
          ], [
          <xref ref-type="bibr" rid="ref12">12</xref>
          ] and even socio-technical systems [
          <xref ref-type="bibr" rid="ref11">11</xref>
          ]. He, for
example, foresaw that technical innovations can remove the jobs of scores of people,
leading to the need to restore (maintain the constancy of their life conditions) by
providing unemployment benefits and retraining [
          <xref ref-type="bibr" rid="ref11">11</xref>
          ].
2.3
        </p>
      </sec>
      <sec id="sec-5-2">
        <title>Fractal Enterprise Model</title>
        <p>A Fractal Enterprise Model (FEM) includes three types of elements: business processes
(more exactly, business process types), assets, and relationships between them, see Fig.
2 in which a fragment of a model is presented. The fragment is related to a hypothetic
management consulting company. Graphically, a process is represented by an oval, an
asset is represented by a rectangle (box), while a relationship between a process and an
asset is represented by an arrow. We differentiate two types of relationships in the
fractal model. One type represents a relationship of a process “using” an asset; in this case,
the arrow points from the asset to the process and has a solid line. The other type
represents a relationship of a process changing the asset; in this case, the arrow points from
the process to the asset and has a dashed line. These two types of relationships allow
tying up processes and assets in a directed graph.
In FEM, a label inside an oval names the given process, and a label inside a rectangle
names the given asset. Arrows are also labeled to show the type of relationships
between the processes and assets. A label on an arrow pointing from an asset to a process
identifies the role the given asset plays in the process, for example, workforce, and
infrastructure. A label on an arrow pointing from a process to an asset identifies the
way in which the process affects (i.e. changes) the asset. In FEM, an asset is considered
as a pool of entities capable of playing a given role in a given process. Labels leading
into assets from supporting processes reflect the way the pool is affected, for example,
the label acquire identifies that the process can/should increase the pool size.</p>
        <p>Note that the same asset can be used in two different processes playing the same or
different roles in them, which is reflected by labels on the corresponding arrows. It is
also possible that the same asset can be used for more than one role in the same process.
In this case there can be more than one arrow between the asset and the process, but
with different labels. Similarly, the same process could affect different assets, each in
the same or in different ways, which is represented by the corresponding labels on the
arrows. Moreover, it is possible that the same process affects the same asset in different
ways, which is represented by having two or more arrows from the process to the asset,
each with its own label.</p>
        <p>In FEM, different styles can be used for shapes to group together different kinds of
processes, assets, and/or relationships between them. Such styles can include dashed or
double lines, or lines of different thickness, or colored lines and/or shapes. For example,
a diamond start of an arrow from an asset to a process means that the asset is a
stakeholder of the process (see the arrows “Workforce” in Fig. 2).</p>
        <p>Labels inside ovals (which represent processes) and inside rectangles (which
represent assets) are not standardized. They can be set according to the terminology accepted
in the given domain, or be specific for a given organization. Labels on arrows (which
represent the relationships between processes and assets) can be standardized. This is
done by using a relatively abstract set of relationships, such as, workforce or acquire,
which are clarified by the domain- and context-specific labels inside ovals and
rectangles. Standardization improves the understandability of the models.</p>
        <p>While there are a number of types of relationships that show how an asset is used in
a process (see example in Fig. 1), there are only three types of relationships that show
how an asset is managed by a process – Acquire, Maintain and Retire.</p>
        <p>To make the work of building a fractal model more systematic, FEM uses archetypes
(or patterns) for fragments from which a particular model can be built. An archetype is
a template defined as a fragment of a model where labels inside ovals (processes) and
rectangles (assets) are omitted, but arrows are labelled. Instantiating an archetype
means putting the fragment inside the model and labelling ovals and rectangles; it is
also possible to add elements absent in the archetype, or omit some elements that are
present in the archetype.</p>
        <p>FEM has two types of archetypes, process-assets archetypes and an asset-processes
archetype. A process-assets archetype represents the kinds of assets that can be used in
a given category of processes. The asset-processes archetype shows the kinds of
processes that are aimed at changing the given category of assets.</p>
        <p>
          Note that in FEM each process node is connected to assets representing different
sides of a sociotechnical system, e.g. people (workforce), technology (technical and
informational infrastructure). However, there is no explicit mentioning of these assets
being aligned with each other. Implicitly such alignment is necessary for a process
being able to function. Moreover, changes in any of the assets connected to a particular
process node, e.g. people or technology, require readjustment of other assets connected
to the node. This issue is covered in more details in [
          <xref ref-type="bibr" rid="ref13">13</xref>
          ].
3
        </p>
        <sec id="sec-5-2-1">
          <title>What Components are Reproduced and How?</title>
          <p>The basic idea of FEM is that any process (type) needs assets in order to be able to run
its instances with a required regularity. These assets age/become depleted with time and
need renovation/service or substitution with new ones. The substitution requires retiring
old/depleted assets along with the introduction of the new ones. The assets management
processes are attached to each asset with a dashed arrow and the labels Acquire,
Maintain or Require. Without the management processes in place, the asset will be depleted
and the process(es) that uses this asset will no longer be able to run new instances.</p>
          <p>Note that a primary process in FEM also serves as an asset management process. For
example, the root process in Fig.2 can be considered as a process of acquiring monetary
funds and reputation of a reliable management consultant. The first is an asset that is
needed for all processes, while the second is needed for sales and marketing – a
customer acquiring process.</p>
          <p>Based on the discussion above, we can conclude that a FEM model of an
organization describes both the "body" of the organization – its assets, and the processes that
are responsible for reproducing the body. Note that the concept of a body derived from
FEM includes more than a traditional drawing of an organizational boundary, as it may
include assets that strictly speaking are outside its full control, such as customers or
partners (e.g., suppliers).</p>
          <p>The generic reproduction idea in FEM is similar to the one suggested by Zeleny in
Fig. 1, but is slightly different. Firstly, our acquire processes fulfill both purposes –
getting new entities for an asset pool, and introducing them in the structure of the
functioning organization. As an example, in Fig. 2, both processes Recruiting and Education
and training are connected to asset Management consultants. In terms of Fig. 1, the
first process can be roughly considered as production, and the second – as bonding. The
other difference from Zeleny's generic framework – the latter does not name the
maintenance processes explicitly.</p>
          <p>
            From a systems perspective, a process node of FEM, with supporting assets,
represents a work system responsible for initiating and finishing process instances of the
given type. We call this system a Business Process Work System or BPWS for short.
BPWS can be regarded as a socio-technical system as it include people, methods, e.g.
manuals that prescribes the process flow, technology and structure – distribution of
responsibilities between the members of the team responsible for the process. Note that
the term work system was introduced by S. Alter, see, for example, [
            <xref ref-type="bibr" rid="ref14">14</xref>
            ], and BPWS
can be considered as a particular class of work system.
          </p>
          <p>A process instance is initiated based on a combination of external and internal
conditions. An example of an internal condition for an acquire process is a resource
depletion, real or expected. Let us illustrate how internal conditions work using the example
in Fig. 2. When some of the management consultants suddenly leave, the pool of
consultants becomes somewhat depleted, which gives a signal to starting an instance of the
Recruiting process. Another internal signal to this end is when some consultant(s) is
nearing the retirement age, and will need to be substituted. Recruiting a new consultant
gives a signal to the Education and training to start an instance of this process.</p>
          <p>
            Note that a Business Process Instance (BPI) can also been considered as a system
that is created to handle a specific situation defined by a condition for creating an
instance. This system can be considered as a respondent system in terms of [
            <xref ref-type="bibr" rid="ref15">15</xref>
            ] which is
created to handle a specific situation and which is disbanded when the situation is
resolved. When creating a BPI, BPWS gives it some of its assets to be engaged in the
BPI. It also follows the work of BPI, and if needed can give more assets. After the BPI
is finished, all assets are returned back to the BPWS. Note that assets may not be given
exclusively, but may be shared with other BPIs.
4
          </p>
        </sec>
        <sec id="sec-5-2-2">
          <title>Linking Autopoiesis to Homeostasis</title>
          <p>In this paper, we consider homeostasis as an ability of a socio-technical system to (a)
adapt itself to changes in the dynamic environment in which it operates while (b)
maintaining its identity. These two sides of homeostatic behavior are considered in the
following sub-sections. Note that, the reproduction of the body that can be considered as
part of the homeostatic activities is not considered in this section, as it was already
discussed in Section 3.
4.1</p>
        </sec>
      </sec>
      <sec id="sec-5-3">
        <title>How the Adaptation Happens</title>
        <p>While Section 3 explains how autopoiesis - body reproduction - works in a
socio-technical system, it does not explicitly refer to the need for adaptation. The procedure of
reproducing the system's "body" seems to work in a way that the body does not change.
The depleted assets are being replenished by the same kind of entities, i.e. the same
kind of customers, employees, technology, etc. This is not true in reality, as the
replenishing the assets is often done by obtaining components from the outer world and
bonding (the term used by Zeleny) them into the system.</p>
        <p>To obtain new components to replenish assets, when an acquire processes needs to
get some material from outside the system, the process might need to undergo some
changes. For example, to acquire new customers (beneficiaries in terms of FEM), there
might be a need to change the value proposition. This in turn, will require changing the
products and/or services assortment, which will initiate changes along the design and
delivery branch of the FEM tree. Note that the needs to adjust the offering may also be
discovered by the customer maintenance process, i.e. the offering might need to be
changed to retain the existing customers.</p>
        <p>The same process for adapting to changes can be invoked by an acquire process for
any other assets that require input from the environment. For example, when new
equipment is purchased (the infrastructure type of assets), it may be more advanced than the
previous one. This can lead to the need to retrain the staff (a maintenance process),
and/or lead to the need to decrease the number of people employed (activates the
retiring processes).</p>
        <p>
          Summarizing the discussion above, any of the acquiring processes that needs to
incorporate components from the environment into the system may initiate a chain of
changes that leads to the system adapting to the induced change. The components that
are obtained from the outer world may concern any side of the socio-technical system:
people (hiring), technology (purchasing), methods (executable templates) and
structures (organizational infrastructure, not shown in Fig. 2). Moreover, the change initiated
in one place may affect other parts of the system. Some ideas about how such change
can be propagated through the FEM structure are presented in [
          <xref ref-type="bibr" rid="ref13">13</xref>
          ].
4.2
        </p>
      </sec>
      <sec id="sec-5-4">
        <title>What remains constant</title>
        <p>
          In the previous section, we used FEM to explain how adaptation happens while the
system reproduces itself by acquiring components from the outer world. This however,
covers only one side of the concept of homeostasis – adaptation. The other side is the
system maintaining identity while adapting itself to the changes in the environment.
This, in turn, leads to the question of what constitutes identity of a socio-technical
system. There is a vast literature on the concept of organizational identity starting with the
seminal work [
          <xref ref-type="bibr" rid="ref16">16</xref>
          ] from 1985, revisited in [
          <xref ref-type="bibr" rid="ref17">17</xref>
          ] by one of its authors in 2006. However,
in this work, we prefer to stay with the FEM model when discussing organizational
identity.
        </p>
        <p>From a FEM perspective, we can consider that the structure of the root fragment of
FEM may represent the identity of the organization. The root fragment of FEM
represents a primary process (in terms of FEM) that delivers value to the "external"
beneficiaries (e.g. customers). As long as it stays the same on an abstract level, such as in Fig.
2, we can consider that the system has not changed its identity. For example, the root
fragment in Fig. 2 shows the typical structure of a management consulting company,
which will be the same as long as the company functions as a management consultancy.
Note, however, that an organization can have several roots (primary processes) which
can lead to a question whether the organization remains the same as some roots
disappear or new roots are added.</p>
        <p>
          In case of a radical transformation, the root fragment may change. In this case, we
can consider that the identity has changed. Actually, this change will be seen by an
observer. Assume, for example, that the company in Fig. 2 has an internal tool used for
consulting, and it decides to become a tool provider and stop the management
consulting activities. This decision can be considered as changing the company's identity. The
company will no more provide management consulting services, but provide a tool for
others, including their former competitors1. For more examples of radical
transformation and how they can be depicted in FEM, see [
          <xref ref-type="bibr" rid="ref18">18</xref>
          ].
        </p>
        <p>Note, however, that whether the identity has changed or not depends on the observer.
In the example above, the identity change will, most probably be detected by potential
customers and competitors, both old and new ones. A company that provides financial
services to our management consultancy, e.g. bookkeeping, most probably, would not
classify the change as identity change. Though they will observe the change, as the
source of income changes, they may not consider that the company changes its identity.
The same can be said about an internal observer who works on tool development. For
him/her the company may look the same, though it depends on the scope of observation
of a particular person.</p>
        <p>
          Another way of defining identity comes from the concept of structural coupling, a
concept closely related to autopoiesis [
          <xref ref-type="bibr" rid="ref19">19</xref>
          ]. The idea of structural coupling is relatively
simple. There are elements of the environment that are more tightly connected to the
given system (organization) than other parts of the system's environment. The system
focuses on reacting to changes in these elements or trying to change them, while more
or less ignoring other elements (systems) in the environment. Applying the idea of
structural coupling to defining organizational identity was suggested in [
          <xref ref-type="bibr" rid="ref20">20</xref>
          ]. It amounts
to defining the maintenance of identity, as maintaining structural coupling with the
important elements of the environment.
        </p>
        <p>
          Assume that that each acquiring process that relies on external components takes
them from some external "pool" of such components produced by other systems in the
environment. Then, we can consider that the system is structurally coupled to such a
pool, or systems producing components for it. Continuing the deliberation, we can say
1 For more examples of radical transformation and how they can be depicted in FEM, see [
          <xref ref-type="bibr" rid="ref18">18</xref>
          ].
that the identity of the system stays the same as long as all, or the most important,
acquiring processes work with the same pools. Changing a pool constitutes structural
recoupling, which may lead to changing the identity. Going back to the example when
a management consultancy becomes a tool provider, this example constitutes a
structural recoupling from the pool of organizations that need consulting help to the pool of
organizations that needs a management tool (including other management
consultancies).
5
        </p>
        <sec id="sec-5-4-1">
          <title>Concluding remarks</title>
          <p>The goal of this paper was to apply two systems concepts, autopoiesis and homeostasis,
to the realm of socio-technical systems. More specifically, we wanted to clarify how
autopoiesis and homeostasis work in such a system and, hopefully, find a linkage
between the two. To achieve our purpose, we used FEM to model the operational activities
of an organization on a high level. The model helped to define the notion of a body of
a socio-technical system, and underline the processes used to constantly reproduce it.
It also helped to explain how the adaptation to changes in the internal and external
environments happens, i.e. through the reproduction processes discovering a change
and initiating changes in other parts of the system's "body".</p>
          <p>
            Note that this work is an initial stage, and more investigation is required to be able
to use the ideas presented in this paper in practice. In particular, the mechanisms of
propagating the need for changes throughout the whole body needs special attention.
Some ideas on this issue are presented in [
            <xref ref-type="bibr" rid="ref13">13</xref>
            ].
          </p>
        </sec>
      </sec>
    </sec>
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