Agentic AI Reference Architecture

Knowledge & Data · Data store

Modality-Specific Vector Store

Data storeKnowledge & DataKnowledge & Dataarc:ModalitySpecificVectorStore

A vector store dedicated to one modality's embeddings (text, image, or audio), possibly using a storage technology specialised for that modality.

Responsibility. Stores and searches embeddings of a single modality.

Also known as: Text vector store, Image vector store

Variant of Vector Index Store abstract

specializesis read byis written byVector Index Store: specializesVector Index StorePer-Modality Fan-Out Retriever: is read byPer-Modality Fan-Out Ret…Modality-Specific Embedding Service: is written byModality-Specific Embedd…
Direct neighbourhood (hover for relationship types)

Relationships

is read by dependency

is written by dependency

Classification

Patterns
Separate stores with cross-modal rerankingHeterogeneous storage
Quality attributes
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.