The Structure of Abstract Document Objects
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A current research problem of great intellectual and commerical interest is the construction of interactive document processing systems that can easily handle the large variety of objects that typically appear in electronic and paper documents. These objects can be divided roughly into four classes: textual, tabular, mathematical, and pictorial. It has proven difficult to gracefully integrate the treatment of these different classes so that dissimilar objects may be used together, for example, mathematics within pictures, pictures within text, or text within mathematics inside a table. Ideally, there should be a common underlying structural model, similar editing and specification languages, and a uniform way to store, traverse, and display all objects.
KeywordsDirected Acyclic Graph Abstract Object Concrete Object Shared Object Paper Document
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