Design an AI pipeline that extracts structured data from unstructured documents (invoices, contracts, forms).

Document extraction (IDP) is a massive enterprise use case with a steep correctness bar: a wrong extracted number beats having none. The signal is the parse, extract, validate, human-review pipeline plus confidence-based routing. Here is the design.

Updated Sep 2026 · Grounded in real GenAI, LLM, and AI/ML engineering interview loops and written to a senior-engineer editorial bar.