# 🔢 数据层：一切为了数据

“每位数据科学家都应该将80%的时间用于数据预处理，20%的时间用于进行分析。” 

如图1所示，数据在整个AI工作流程中起着非常重要的作用，也是AI区块链的基础——所有dAI应用程序都依赖于高质量的数据。DIN协议的设计和实施，是为了通过激励机制来确保网络能够获取高质量的数据。

 本章将解释DIN协议如何为网络参与者提供服务，以及他们如何通过参与数据活动获得奖励。

<figure><img src="/files/6SaiPNMYkI1lQafW4J2B" alt=""><figcaption><p>Fig 1.  AI Work Flow</p></figcaption></figure>


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