Tools are one of the basic categories of products in the Man Made World. .9 Forms of Structuring in IIC Agricultural Tools Artisinal Tools Calculating Tools Machine-Tools Measurement Tools Mechanical Tools Micro-Tools Prehistoric Tools Tools Tools Conservation How Method Devices Detectors Instruments Sensors Apparatus amd Appliances Tools Equipment Aapparatus Appliances Detectors Devices Equipment Factories How? Instruments Machines Sensors Technology Machines Factories Why Theory