<P> The following outline is provided as an overview of and topical guide to technology: </P> <P> Technology--collection of tools, including machinery, modifications, arrangements and procedures used by humans . Engineering is the discipline that seeks to study and design new technologies . Technologies significantly affect human as well as other animal species' ability to control and adapt to their natural environments . </P> <Ul> <Li> Knowledge <Ul> <Li> Engineering </Li> <Li> Procedure (term) </Li> <Li> Process </Li> <Li> Science </Li> <Li> Skill </Li> </Ul> </Li> <Li> Tools <Ul> <Li> Utensil </Li> <Li> Equipment </Li> <Li> Invention </Li> <Li> Machinery </Li> </Ul> </Li> <Li> Structures (buildings, roads, bridges, canals, dams, etc .) <Ul> <Li> Man - made systems (see system) </Li> </Ul> </Li> <Li> Infrastructure <Ul> <Li> Public utility </Li> </Ul> </Li> </Ul> <Li> Knowledge <Ul> <Li> Engineering </Li> <Li> Procedure (term) </Li> <Li> Process </Li> <Li> Science </Li> <Li> Skill </Li> </Ul> </Li>

What are the two components of​ technology ​