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The Compound Solution pack module allows you to create what are called "compound objects." Compound objects function as "parent" objects that gather together one or more "child" objects. Child objects can be created with any other Islandora solution pack and have their own metadata. When you associate Islandora objects with a parent compound object, the parent-child relationship is recorded in the RELS-EXT structural metadata of the child objects (see bottom of page for sample RELS-EXT). Sequencing information can also be recorded in the RELS-EXT metadata so child objects can be displayed in their proper order. Display," is a block utilizing For example, a scanned postcard with a front and back view would have the following structure:

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There are two block options for displaying compound objects within Islandora. The default "Islandora Compound Object Navigation" block will provide navigation controls and loading of all objects related to the parent compound. The second other option "Islandora Compound Object JAIL Display," is a block utilizing the JAIL library which allows for "lazy loading" of images. This allows the block to load images only when they are being accessed, which will greatly increase performance on compound objects with many children.See the "Installation" section for more information about the two display options.

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