Structural Context for Fixed Layout Documents
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Solution Overview
Problem
Fixed layout markup documents, such as those in the XPS format, lack structural context, leading to issues like improper reading order when content is copied and pasted into different document formats, as they do not inherently define structural information like paragraphs, tables, or headers, which affects functionalities like accessibility and copy-paste operations.
Innovation Solution
Introducing a structural context for fixed layout markup documents by maintaining separate structural markup that references content markup, allowing for the definition of reading order, organizational structure, and inter-relationships between markup elements, enabling functionalities like maintaining the intended reading order and recreating table structures during copy-paste operations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If separate structural markup is introduced for fixed layout documents, then structural context and reading order are preserved, but document complexity increases
Solution Approach 1:
The document markup is segmented into two distinct parts: content markup that defines visual rendering, and structural markup that defines organizational structure and reading order. This segmentation allows each part to serve its specific function without interference, preserving structural context while maintaining clear separation of concerns.
Solution Approach 2:
A story fragment structure acts as an intermediary layer between content markup and structural markup. The story fragment references both the visual content and its structural context, enabling document consumers to access structural information without directly processing the entire markup system, thus managing complexity.
2Ease of operation
If structural markup is maintained separately from content markup, then accessibility and copy-paste operations improve, but information access complexity increases
Solution Approach 1:
The structural markup is nested within the existing document structure through story fragments that are themselves nested within the content markup. This nested organization allows structural information to be accessed through the existing content markup pathways, improving ease of operation while managing access complexity through hierarchical organization.
3Manufacturing precision
If reading order is defined through separate structural markup, then copy-paste operations maintain intended order, but processing overhead increases
Solution Approach 1:
The reading order is predetermined and defined in advance through the structural markup during document creation. This preliminary definition of reading order allows document consumers to directly access the intended sequence without performing complex analysis during copy-paste operations, maintaining precision while reducing processing overhead.
Data Source
AI summary
Techniques relating to structural context for fixed layout markup documents are described. In one instance, a process defines content and associated positional information of a document with a set of content markup. The process also specifies a structural configuration for the document relative to at least some of the content markup, such that the structural configuration is separate from the content markup.