Agentic AI Reference Architecture

Knowledge & Data · Software component

Parametric Answer Generator

Software componentKnowledge & DataKnowledge & Dataarc:ParametricAnswerGenerator

An answer-generation component that prompts the LLM to answer from its parametric (weight-encoded) knowledge without retrieved context, used for retrieval-free queries and as a retrieval fallback.

Responsibility. Answers queries without retrieval from the model's parametric knowledge.

Also known as: Direct parametric generation, No-retrieval generation

invokesis failover foris routed to byis routed to byis invoked byLLM Inference Service: invokesLLM Inference ServiceRetriever: is failover forRetrieverGraceful Degradation Manager: is routed to byGraceful Degradation Man…Adaptive Retrieval Controller: is routed to byAdaptive Retrieval Contr…Confidence-Gated Retrieval Controller: is invoked byConfidence-Gated Retriev…
Direct neighbourhood (hover for relationship types)

Relationships

invokes dependency

is invoked by dependency

is routed to by dynamic

is failover for control

Classification

Quality attributes
Performance efficiency (ISO/IEC 25010)Reliability (ISO/IEC 25010 | NIST AI RMF: valid and reliable)

Sources

  1. Ch6.6: T. Nguyen, "Query Decomposition and Adaptive Retrieval," in Mastering Agentic AI Systems: Guide for the NVIDIA NCP-AAI Exam, 1st ed. 2026, ch. 6.6. ISBN: 9798244538229.