Governed AI pipeline · Representative architecture

AI Document Processing

The useful part of document AI is not the extraction. It is everything built around the extraction so that a wrong value never reaches a system of record.

The client is not identified and no metrics are published. What follows is the architecture and the reasoning behind it.

The problem

What was actually happening

Staff received scanned client paperwork and manually entered data into business systems before generating additional documentation. Every document was read once by a person, typed once by a person, and then used to produce another document by a person — three passes over the same facts, each one a chance to introduce an error that only surfaces downstream.

The environment it landed in

  • Scanned PDFs and photographs
  • Layouts that differ by counterparty
  • Downstream systems with strict field rules
  • Documents that must be produced back out
  • Retention and traceability obligations
Before

How the work moved before.

Every step below was real work done by a person, and every handoff was a place the process could stop without anyone noticing.

What Octacer built

The system that replaced it.

  • 01

    Structured extraction, not free text

    The model is asked for a defined schema, so the output is checkable against field rules rather than read as prose.

  • 02

    A verification surface

    The original page sits beside the extracted values. A reviewer confirms or corrects in the same view, which is what makes review fast enough to actually happen.

  • 03

    A gate before anything is written

    Low-confidence and rule-violating fields are held for a person. Nothing reaches an external system on the model’s word alone.

  • 04

    Record creation in the systems of record

    Once verified, records are created through the downstream system’s own API, with its validation, not by simulating a user.

  • 05

    Generated output documents

    The Word and PDF documents that used to be written by hand are produced from the verified values.

Architecture

The decisions that make it hold.

Not a component list. These are the choices that determine whether the system is still trustworthy a year after launch.

Confidence routes the work
Extraction confidence and field-level rules decide which items pass straight through and which are queued for a person.
Human review is a stage, not an afterthought
Verification is part of the pipeline’s state machine, so a document cannot skip it and an unreviewed document has a name for the state it is in.
Cost is accounted per document
AI usage is attributed to the document that caused it by design, so the cost of a run is a line item rather than an aggregate surprise at the end of the month.
Everything is recorded
The source file, the extraction, every correction a reviewer made and every document generated are kept together as one traceable unit.
The production pipeline. The human stage is a gate, not a review queue nobody reads.

Production safeguards

  • Confidence thresholds decide what a person sees
  • The original document is always visible beside the extracted value
  • No downstream write happens before verification passes
  • AI usage is accounted per document
  • Extractions, corrections and generated outputs are retained together

These are design properties of the pipeline described here. No accuracy or volume figures are published for this system.

Business effect

What changes once it exists

  • The same facts are handled once rather than three times.
  • A wrong value is caught at the verification surface instead of inside a downstream record.
  • The people who used to type are the people who now confirm — the expertise stays, the keystrokes go.
  • Where a document came from and what was changed on it is answerable months later.

Why it matters — relevant for

  • Logistics documents
  • Invoices
  • Applications
  • Claims
  • HR documentation
  • Compliance
  • Purchase orders
  • Contracts
Next step

Have a similar operational constraint?

Bring the process that looks closest to this one. We map it end to end before proposing anything.