A service interface must specify everything that potential consumers of the service need to know to decide whether they are interested in using the service, as well as exactly how to use it.

服务接口必须指定服务的潜在消费者需要知道的每一件事情，以决定他们是否对使用服务感兴趣，以及怎样使用这些服务了如指掌。

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They know how to create products that speak to these emotions in consumers.

他们知道如何创造一个产品来迎合用户的情感。

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A service interface defines everything that potential consumers of the service needs to know to decided whether they are interested in using the service and exactly how to use it.

所谓的服务界面定义了服务潜在消费者所需要知道的一切事情，以决定它们是否对使用该服务感兴趣，以及如果要用的话该去怎样用。

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But how are consumers to know what is real and what is magic?

NEWYORKER: The Operator

When it comes to making the most out of social media and marketing, companies should know how to listen to their consumers and find ways to engage them in different platforms.

FORBES: How To Make Social Media Work For Your Brand

Taking a lead from the utility market, where OPower uses data from utilities to let consumers know how their energy use stacks up against comparable households, the car companies could let customers know how their fuel efficiency compares with other owners of the same type of vehicle, then suggest ways to improve.

FORBES: How Traditional Automakers Can Still Win Against Google's Driverless Car: Part 5