MOCA-2 Metadata Tagging in AFP Print Data
Solution Overview
Problem
The existing Advanced Function Presentation (AFP) format requires page fragmentation to associate metadata with individual components, leading to workflow challenges and performance issues during content merging and rendering.
Innovation Solution
The implementation of Metadata Object Content Architecture 2.0 (MOCA-2) allows for efficient metadata tagging within AFP print data by inserting contextual information directly into AFP objects, using local ID, byte offset, or area coordinate tagging methods, without disrupting the document structure.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If metadata is associated with individual components by separating the page into multiple text objects, then metadata association capability is improved, but document structure integrity deteriorates
Solution Approach 1:
The patent segments metadata association into two independent parts: (1) the main document structure remains as a single integrated page object, and (2) metadata is stored separately in an index with references to specific components. This allows metadata to be associated with individual components without physically fragmenting the page structure.
Solution Approach 2:
The patent introduces an intermediary index structure that mediates between the intact page object and metadata requirements. The index contains references to specific text objects or graphical objects within the page, enabling precise metadata association while the page itself remains unfragmented.
2Measurement precision
If the page is separated into multiple text objects for metadata tagging, then metadata precision is improved, but workflow efficiency deteriorates
Solution Approach 1:
The patent segments only the metadata indexing structure into component-level references while keeping the main document as a unified page object. This allows precise metadata association with specific text or graphical components without requiring actual page fragmentation, thereby maintaining workflow efficiency.
3Measurement precision
If page fragmentation is performed to associate metadata with components, then metadata association accuracy is improved, but rendering performance deteriorates
Solution Approach 1:
The patent creates a virtual copy or reference structure in the index that points to components within the page, rather than physically duplicating or fragmenting the page objects. This allows precise component-level metadata association while the rendering engine processes the original intact page structure, maintaining rendering performance.
Data Source
AI summary
A method is disclosed. The method includes detecting an object within Advanced Presentation Document (AFP) print data and inserting a Metadata Object Content Architecture 2.0 (MOCA-2) object into the AFP print data to associate contextual information with a component of data within the object.