Qualitative and Quantitative Aspects of a Model for Processes Inspired by the Functioning of the Living Cell

Reaction systems are a formal model for processes inspired by the functioning of the living cell. The underlying idea of this model is that the functioning of the living cell is determined by the interactions of biochemical reactions, and these interactions are based on the mechanisms of facilitation and inhibition. In this chapter, we first review the main notions of the basic model of reaction systems which is a qualitative model. Then we discuss various ways of taking into account quantitative properties.