This technical architecture brief outlines the AI data ingestion process and the associated metadata mapping and cost attribution methodologies. It describes how Ternary ingests and normalizes raw AI consumption data alongside public cloud billing telemetry, consolidating various APIs and invoices into a structured ledger for financial mapping. The document details two ingestion approaches: direct vendor invoices and blended cloud billing, specifying the frequency of ingestion for cloud data and direct billing streams. Additionally, it explains the tag attribution and enrichment process, which includes importing native tags and integrating business structures through CSV files. The brief also highlights core metrics such as ROI reconciliation, spend tracking, and burn-rate forecasting, which are essential for financial analysis. Furthermore, it addresses data security and compliance standards, including SOC 2 Type II and ISO 27001, and outlines deployment options for the platform.