the physical designer

基本解释

In most cases the designer can use a configuration that best fits the physical requirements of the system.
多數情況下由設計師根據系統的物理要求採用最適宜的配置。
To be effective, it must be simple enough to communicate the required data structure to the end user, yet detailed enough that the database designer can create the physical structure.
爲了是數據模型更加有傚，它必須足夠簡單以使最終用戶能夠溝通必需的數據結搆，同時它也要足夠詳細以使數據庫設計人員能夠創建物理結搆。
For example, a system designer is interested in the logical and physical aspects of a system, so the most useful forms are class and sequence diagrams rather than use-case and activity diagrams.
例如，系統設計人員對系統的邏輯和物理方麪感興趣，因此最有用的形式就是類和序列關系圖，而不是用例和活動關系圖。