Full Idea
Activities can be identified spatiotemporally, and individuated by rate, duration, and types of entity and property that engage in them. They also have modes of operation, directionality, polarity, energy requirements and a range.
Gist of Idea
Activities have place, rate, duration, entities, properties, modes, direction, polarity, energy and range
Source
Machamer,P/Darden,L/Craver,C (Thinking About Mechanisms [2000], 3)
Book Reference
-: 'Philosophy of Science' [-], p.5
A Reaction
This is their attempt at making 'activity' one of the two central concepts of ontology, along with 'entity'. A helpful analysis. It just seems to be one way of slicing the cake.
Related Idea
Idea 16553 Our account of mechanism combines both entities and activities [Machamer/Darden/Craver]