SAP Marketing Cloud裏的contact main facet是什麼意思

界面以下：

Basically, contact data for SAP Hybris Marketing can be loaded from various sources, such as an ERP system, a web shop, social media and many more. Contact數據源能夠來自各個渠道，例如ERP系統，電商，社交媒體帳號等等。 每一個渠道均可以成爲Marketing Cloud系統裏最終完整contact實例的一塊拼圖，這個完整的contact實例也稱爲Golden record。 Each source may contribute to the building of the Golden Record, which represents the most valuable contact master data stored in one single record per contact. 而數據源渠道自身也被稱爲Main facets，用於提供常規意義上的contact信息，以及額外信息，例如地址信息，電子郵箱地址，信用卡號，手機號等等。這些額外信息也稱爲additional facet。 Therefore, the sources themselves are considered as Main Facets, which might provide general contact data, such as address data or data for customer-specific fields. A Main Facet might also have data, for example, a loyalty card number, an email address, a phone, a mobile or a fax number. Because of their identifyingnature, we consider these attributes as Additional Facets.

上圖中的藍色圓環表明main facets，而黃色圓環表明additional facets。

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