Agentic AI Reference Architecture

Knowledge & Data · Data artifact

Multimodal Chunk Metadata Schema

Data artifactKnowledge & DataKnowledge & Dataarc:MultimodalChunkMetadataSchema

A data contract for chunk metadata recording source modality flag, original asset reference, page/section, timestamps, speaker, language, confidence, and extracted tables.

Responsibility. Defines the provenance and filter fields every indexed multimodal chunk carries.

Also known as: Modality metadata, Chunk metadata

configuresconfiguresconfiguresconfiguresconfiguresMetadata-Filtered Retriever: configuresMetadata-Filtered Retrie…Semantic Boundary Chunker: configuresSemantic Boundary ChunkerMultimodal Context Assembler: configuresMultimodal Context Assem…Image-to-Text Grounder: configuresImage-to-Text GrounderTime-Indexed Transcript Chunker: configuresTime-Indexed Transcript …
Direct neighbourhood (hover for relationship types)

Relationships

configures structural

Design guidance

Classification

Quality attributes
Transparency and accountability (NIST AI RMF: accountable and transparent)Maintainability (ISO/IEC 25010)

Sources

  1. Ch2.7: T. Nguyen, "Multimodal RAG Approaches," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 2.7. ISBN: 9798244538229.