A document pipeline should distinguish missing data from uncertain data because leaving both as an empty field makes downstream rules unreliable and gives reviewers no clue about the cause. Document AI development can distinguish absent from unreadable content. Conflicting values need their own state. Validation rules should match the document type. An invoice total may be checked against line items, while a contract date needs nearby clause context. The source region should remain visible to the reviewer. https://ai-software-development.net An intelligent document processing approach also needs a clear correction path. Reviewer edits can improve future evaluation data, but they should not silently rewrite the archived source or erase the original extraction.