"We have no aces to what the world is, to ontology, only to descriptions of the world... that is to say, epistemology.…"

"We reduce the complexity of the variety of the world in experiments whose results are validated by their repeatabilit…"

"The concept of action research arises in the behavioural sciences and is obviously applicable to an examination of hu…"

"A methodology will lack the precision of a technique but will be a firmer guide to action than a philosophy. Where a …"

"In a certain sense human activity systems do not exist, only perceptions of them exist, perceptions which are associa…"

"The core of a root definition of a system will be a transformation process (T), the means by which defined inputs are…"

"Making drawings to indicate the many elements in any human situation is something which has characterized SSM from th…"

"In an unrestricted science such as biology or geology, the effects under study are so complex that designed experimen…"

"A root definition describing a notional system chosen for its relevance to what the investigator and/or people in the…"

"Systems thinking, as written about and practiced by Russell Ackoff, C. West Churchman, Peter Checkland and others, co…"