Master-detail

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In computer user interface design, a master-detail page is one in which there is a list or tree of items, and a detail section next to it. Selecting an item from the master list causes the details of that item to be populated in the detail pane, hence the name.

A master-detail relationship is a one-to-many type relationship. A set of purchase orders and a set of line items belonging to each purchase order is an example of a master-detail relationship. An application can use this master-detail relationship to enable users to navigate through the purchase order data and see the detail data for line items only when needed.