Mastering systems thinking in practice
Mastering systems thinking in practice

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Mastering systems thinking in practice

6.2 Distinctions between Mode 1 and Mode 2

Table 2 sets out some distinctions which an observer might make between Mode 1 and Mode 2 use of SSM by a practitioner.

Table 2 Possible distinctions between Mode 1 and Mode 2 use of SSM by a practitioner

Mode 1Mode 2
Sometimes used only as a linear sequenceAlways iterative
SSM as an external recipeSSM as an internalised model
(Adapted from Checkland and Scholes, 1990, p. A36)

Checkland and Scholes (1990) characterise Mode 2 as occurring when the systems practitioner interacts in the events (practices) and ideas (theories) which unfold over time. Another way of saying this is that the practitioner is a participant in the situation rather than being external to it (and it is for this reason that the history of the practitioner – called a tradition – was drawn to your attention). I have set these two modes of using SSM out as if they are two categories but Peter Checkland (personal communication) says that:

‘It ought to be made clear that Mode 1/Mode 2 are not two categories; they define a spectrum; they are ideal types; any actual study will be somewhere on the spectrum. The ‘Mode 2’ concept arose naturally as, with experience, two things came together:

  • the ‘technology’ of SSM became internalised; it became tacit knowledge which we did not have to stop and think about; and
  • the experience of the use of SSM convinced us that there was a need to pay attention to the process being enacted as much as the content which the process was addressing.

Mode 2 was thus an emergent development arising experientially not a designed development.’

Both the evolution of a method/methodology and its use in practice is a learning process flowing from experience in action outlined in Figure 3. SSM, like other approaches, is a learning process that can be mapped on to a learning cycle as Peter Checkland himself has done in Figure 9.

SSM as a learning system
Figure 9SSM as a learning system
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