A customer may or may not also be a consumer, but the two notions are distinct, even though the terms are commonly confused. A customer purchases goods; a consumer uses them. An ultimate customer may be a consumer as well, but just as equally may have purchased items for someone else to consume. An intermediate customer is not a consumer at all. The situation is somewhat complicated in that ultimate customers of so-called industrial goods and services (who are entities such as government bodies, manufacturers, and educational and medical institutions) either themselves use up the goods and services that they buy, or incorporate them into other finished products, and so are technically consumers, too. However, they are rarely called that, but are rather called industrial customers or business-to-business customers. Similarly, customers who buy services rather than goods are rarely called consumers.
Interaction is a kind of action that occurs as two or more objects have an effect upon one another. The idea of a two-way effect is essential in the concept of interaction, as opposed to a one-way causal effect. A closely related term is interconnectivity, which deals with the interactions of interactions within systems: combinations of many simple interactions can lead to surprising emergent phenomena. Interaction has different tailored meanings in various sciences. Changes can also involve interaction.
Casual examples of interaction outside science include:
Communication of any sort, for example two or more people talking to each other, or communication among groups, organizations, nations or states: trade, migration, foreign relations, transportation,
The feedback during the operation of machines such as a computer or tool, for example the interaction between a driver and the position of his or her car on the road: by steering the driver influences this position, by observation this information returns to the driver.
Crew are continuing to work to restore power to 400 customers in Breckenridge... If customers haven’t been opening and closing their ... According to Xcel Energy, 820 customers are affected by this outage....
The Customs sleuths on Sunday seized gold worth Rs 31 lakh from two passengers coming from Bangkok and Dubai... In the past four months more than around Rs 3 cr of smuggled gold has been seized by the Customs and officials of Directorate of Revenue IntelligenceDRI). Assistant commissioner (Customs) Sashi Bhushan said the two passengers were from Jagatsinghpur in Odisha and Delhi....