問題文
A fashion retailer's storefront has both registered customers, who create an account, and guest shoppers, who check out without one. The architect must explain how these map to a unified customer view. What is the best description?
選択肢
- Guest shoppers are impossible to reconcile to a person under any circumstances and should be permanently discarded from the unified view, because a checkout completed without creating an account carries no identifier that could ever be matched later on.
- A registered customer has a stable customer profile that can be matched across products, while a guest order lacks that stable account, so the design needs a way to reconcile guest activity to a person later, often via a shared identifier such as a verified email.
- Registered and guest shoppers are identical in the data model, so no reconciliation is ever needed, so a guest checkout and a registered account are treated as the same thing by each product that later reads the order, whatever the shopper did.
- Guest shoppers must be forced to create an account before any order can be accepted, which is required by the platform, so a shopper who wants a single item is turned away at the till until they create an account, and the guest basket is abandoned.