Firstly, unstructured problems though”recognizable”, cannot be “defined”. Secondly, in problems in human activity systems history always changes the agenda. The contents of such systems are so multivarious, and the influences to which they are subject so numerous that the passage of time always modifies the perception of the problem (such problems really do sometimes “go away”!). Such perceptions of problems are always subjective, and they change with time. This is something which the research had to take into account. In fact a number of studies have been completed which are successful in the sense that they are judged so by both client and systems analyst but in which “the problem” was never defined throughout the whole course of the work.
In formal terms the research proceeds on the basis of the following definition of the word “problem”.
A problem relating to real-world manifestations of human activity systems is a condition characterised by a sense of mismatch, which eludes precise definition, between what is perceived to be actuality and what is perceived might become actuality.
In the early stages of the research it was accepted that whereas the definition of structured problems implies what will be accepted as “a solution”, unstructured problems – the concern of the research – must not be pressed into a structured form but must somehow be tackled in the absence of any firm definition of them. They are conditions to be alleviated rather than problems to be solved.
(Checkland, 1981, p. 155)