The BCD architecture is a hierarchy composed of three basic components: stores, objects, and elements.
A BCD store is the top-level component in the hierarchy. It serves as a namespace container for the BCD objects and elements that make up the contents of the store.
A BCD object is a container of BCD elements. The most common type of BCD object describes a boot environment application, such as an instance of the Windows boot loader. However, BCD objects are also used for other purposes.
A BCD element is a singular item of data such as a debugger setting, a boot application name, or an operating system device.
Figure 1 is a schematic illustration of the BCD hierarchy.
Figure 1. The BCD hierarchy
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