A Build Descriptor part controls the generation process. You associate a build descriptor with a generatable part through the properties of the part or the project; for more information, see Associating a build descriptor with a part.
You can create a chain of build descriptors from the generation-specific build descriptor, so that the first in the chain is processed before the second, and the second before the third. When you define a given build descriptor, you begin a chain (or continue one) by assigning a value to the nextBuildDescriptor build descriptor option. The implication of chaining information is described later.
Any build part referenced by a build descriptor must be visible to the referencing build descriptor. For example, the build part can be a linkage options part or a resource associations part, or the next build descriptor.