| 摘要 |
In some embodiments, a parent object may share its assets with its descendent(s) in a hierarchical asset sharing model. The hierarchical asset sharing model may specify a plurality of asset sharing modes. In a first mode, an asset of the parent is imposed on a child. The child is able to utilize the asset, but unable to modify or delete the asset. In a second mode, the child is able to utilize the asset and a copy of the asset is generated when the child attempts to modify the asset. The child can modify the copy of the asset, which is stored as an asset only of the child. The original asset is no longer shared becomes an asset only of the parent. In a third mode, both the parent and the child can utilize and modify the asset.
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