What the Data for This Category Looks Like
Data for IT service intelligent due diligence reports mainly comes from enterprise qualification documents, project delivery documents, operation and maintenance records, compliance review reports, and similar materials. Update frequency is adjusted based on project progress and compliance inspections, with no fixed schedule. Document structures include structured tables, long-text project descriptions, and multi-format attachments. Fields include service duration (unit: year), contract value (unit: ten thousand yuan), qualification level, service coverage area, and more. Some reports include non-standard custom fields. The total content volume of a single complete report varies widely, and may contain multiple sub-documents and associated attachments.
Constraints Imposed on the Document Parsing and Chunking Process
IT service due diligence reports have a high proportion of structured tables. Logical connections between cells must be retained during parsing to avoid data fragmentation caused by table splitting. Long-text project descriptions and compliance clauses have coherent content. Context continuity must be preserved during chunking, otherwise semantic accuracy of subsequent retrieval will be compromised. The presence of multi-format attachments requires parsing tools to support multiple file formats, and to extract text and metadata from attachments. Non-standard custom fields require the parsing process to retain original field names. Arbitrary merging or renaming of these fields will cause subsequent metadata association to fail. Some reports include image attachments such as qualification certificate scans and service architecture diagrams. Text extraction from images must be supported, otherwise key information will be lost.
How to Configure Settings
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
maxChunkSize | 800–1200 characters | IT service due diligence reports contain long-text project descriptions and structured tables. This range preserves contextual connections while avoiding excessively large chunks that harm retrieval performance |
chunkOverlap | 100–150 characters | Preserves contextual connections between chunks, avoiding loss of logical links when long text is split |
PARSE_PDF_ENABLE_IMAGE | Enabled | IT service due diligence reports often include service architecture diagrams and qualification certificate scans. Enabling this setting extracts text and metadata from images |
UPLOAD_FILE_MAX_SIZE | 500 MB | Single due diligence reports may include multiple project attachments. This upper limit covers most common scenarios |
PARSE_FILE_TIMEOUT_SECONDS | 600 seconds | Large due diligence reports take longer to parse. This setting prevents premature termination of the parsing process due to timeout |
enableMetadataExtract | Enabled | Due diligence reports include metadata such as project number and service duration, which supports more accurate subsequent retrieval and result association |
The parameter values provided on this page are common recommended starting points for configuration. Actual values are affected by material format, data volume, and business rules. Specific issues require targeted analysis. Testing on local samples is recommended before finalizing settings.
Three Common Configuration Mistakes
- When uploading a PDF-format due diligence report, no image-related text appears in the parsing result. Cause: The
PARSE_PDF_ENABLE_IMAGEconfiguration item is not enabled, so the tool does not extract text information from images. - Knowledge base retrieval results have low matching accuracy, and returned chunk content has logical fragmentation. Cause:
maxChunkSizeis set too small, splitting long-text project descriptions into multiple unrelated short chunks and breaking contextual coherence. - A 504 Gateway Timeout status code is returned when parsing large due diligence reports. Cause: The duration set for
PARSE_FILE_TIMEOUT_SECONDSis shorter than the actual time required for parsing, terminating the task before completion.
How to Confirm Configurations Are Correctly Set
- Upload a single IT service due diligence report containing tables and image attachments, verify that tables in the parsing result retain cell connections, and that images include extracted text content.
- Access the knowledge base configuration page, confirm that the configured values for
maxChunkSize,chunkOverlap, andPARSE_PDF_ENABLE_IMAGEmatch the preset standards. - Upload a single test report with a size close to
UPLOAD_FILE_MAX_SIZE, confirm that the parsing task completes normally without timeout errors. - Enter test keywords for retrieval, confirm that returned results include corresponding report metadata fields such as project number and service duration.
Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-09-14.