| 摘要 |
We construct a systematic scheme of information concerning provenance among digital objects, make this information available to the user, and use it to modify the effect of user's actions. Such relationships are derived by comparison of elements in the files or by making records when creating them. This information may be displayed by a view of a descent tree, a flow diagram, or internal markup of a combined view of object content. The provenance structure enables selection of related subsets for search, constraints on search such as 'root occurrence' or 'unmerged occurrences', and selection of appropriate objects to merge or respond to. It defines the active set of objects for any chosen time, enabling a display of commonality and difference among versions at any stage of a project involving one or more collaborators, with or without one of them having final authority over the suggestions of the others. Applications include but are not limited to project flow management including bug reporting and correction, collaborative authoring (by document circulation or by wiki), enhanced chat, enhanced navigation among available objects, and retrieval of objects by following provenance pathways.
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