The objective of the research is to analyze the use of key figures as management tools; in particular how they are used and the impact of their use on activity. The focus is on the analysis of the micro-processes and dynamics of the use of key figures. To overcome the shortcomings of the cognitive-rational paradigm in management research, this book presents an alternative approach based on Cassirer s philosophy and Vygotski s theory of object-oriented and mediated action. The research proposes a new theory of the use of management tools, in particular key figures, which recognizes their...