This paper focuses on modeling collective knowledge objectivations. It is based upon a transdisciplinary approach and a comprehensive methodology. The proposed model is about the social settings of relevant meaning systems and the semio-pragmatic factors of knowledge objectivations. It is shown that the essential resource of practical action is routine knowledge which is objectivated in an arranged system of indications, products and signs: a symbolic device bound to the pragmatic motive of the ongoing socially organized activity and conditioned by a typified sociocognitive relevance system.