Data Characteristics
Supplier audit documents include quality system files, production process records, inspection reports, change control documents, and on-site audit reports. Update frequencies vary. Annual audit reports update yearly. Deviation handling and Corrective and Preventive Action (CAPA) documents update in real-time as events occur. Document structures are diverse, including Word documents, scanned PDFs, Excel spreadsheets, and image-based flowcharts. Fields and units are industry-specific. Examples include batch numbers, production dates, expiration dates, detection limits, content percentages (%), microbial limits (CFU/g or CFU/mL), and deviation levels (major, minor, critical). Accuracy and consistency of these fields are critical for registration and declaration. Some documents may contain handwritten signatures and annotations.
Constraints on Workflow Orchestration
Heterogeneity of supplier audit documents poses challenges for workflow orchestration. Multiple data sources require workflows to support various file formats. Optical Character Recognition (OCR) must process scanned documents and convert unstructured data into parseable text. Inconsistent update frequencies necessitate version management capabilities. Workflows must process the latest or specified document versions and trace historical changes. Industry-specific biomedical fields and units require domain-aware models. Models must accurately identify and extract key information to avoid data bias from misinterpreting specialized terminology. For example, understanding specific processes like "batch release" or "deviation investigation" requires models to correctly interpret contextual semantics. Handwritten signatures and annotations require workflows to differentiate formal content from annotations during information extraction. Workflows must summarize or flag annotations for human review.
Configuration Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
maxContext | 8000 tokens | Audit reports and quality system documents are lengthy. This ensures the model processes the full context in one pass, reducing information fragmentation. |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Large scanned PDFs or complex Excel files take longer to parse. This prevents parsing failures due to timeouts. |
Chunk size | 800 characters | Balances semantic completeness and model processing efficiency. Each text segment contains enough information for understanding and summarization. |
Similarity threshold | 0.78 | Improves recall accuracy. This ensures precise matching of critical information like supplier qualifications and production batches across large document sets. |
Rerank result count | Top 5 | Registration and declaration require high information accuracy. Focusing on a few highly relevant results reduces manual screening effort. |
Model Node Thinking | Enabled | Audit documents are complex. Enabling model reasoning helps handle complex logical judgments and cross-document verification. |
Common Pitfalls
- Workflow node returns
500 Internal Server Error, and logs showmodel request failed: This typically occurs when the model input context length exceeds limits or the input format does not match the model's expectations, leading to processing errors. - Batch execution node output is empty or incomplete: This may happen if subtasks within a loop node do not correctly pass results to global variables outside the loop, causing data loss during final aggregation.
- Extracted batch number or expiration date fields are empty: Document parsing or information extraction models fail to correctly identify specific field formats in the document, or OCR errors lead to critical information loss.
Verification Steps
- Run a workflow containing multiple supplier audit reports. Check if key information (e.g., supplier name, audit date, major findings) is accurately extracted and structured for each report.
- Randomly select a batch of PDF audit files with complex tables and charts. Verify that the workflow correctly parses and extracts table data after OCR processing.
- For different versions of the same supplier document, verify that the workflow identifies the latest version and can trace historical version differences.
The values provided are common starting points. Measure them against your own samples.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-21.