Outlines the emergence of critical systems thinking and practice and t
he reasons why such a development in the systems approach was necessar
y. Considers the limitations of traditional systems thinking and the s
trengths and weaknesses of three alternatives to the traditional syste
ms approach - soft systems thinking, organizational cybernetics and em
ancipatory systems thinking. Reflection on the relationship between th
ese different strands of the systems approach gave impetus to the birt
h of critical systems thinking. Details the nature of critical systems
thinking, as resting on five commitments, and describes a new methodo
logy (''total systems intervention'') to operationalize this approach.