Requirements and Design Document Drafting for Pre-sales Technical Proposals: Document Parsing and Chunking

The daily documents for this category include technical proposal documents, customer requirement research forms, quotation lists, and demo scripts.

What the data for this category looks like

The daily documents for this category include technical proposal documents, customer requirement research forms, quotation lists, and demo scripts. Data sources include customer interview records, tender documents, vendor product materials, and historical project proposals. Documents are updated per order or weekly, and are typically structured by project phase, requirement items, and implementation boundaries across chapters. Fields include project identifiers, requirement items, product parameters, quotation details, etc. Units adjust flexibly based on document type, with no unified fixed format.

What constraints these characteristics impose on the document parsing and chunking workflow

Document sources cover multiple formats such as PDF and Word, and some documents contain complex tables and embedded images. This requires parsing tools to support multiple formats and retain core layout structures. Documents are updated frequently and vary widely in single-document size, so a balance must be struck between parsing efficiency and accuracy. Core content is concentrated in chapters such as requirement items and implementation boundaries. Chunking must accurately extract this content and avoid mixing in irrelevant information. Errors can lead to consequences such as losing bidding points or making overscope commitments, so parsed results must fully retain key fields and paragraph structures.

How to set configurations

These configurations apply to FastGPT v4.17.0.

Configuration ItemRecommended SettingRationale
chunkSize800–1200 charactersAligns with the paragraph length of single chapters in pre-sales proposals, avoiding splitting individual requirement items or implementation boundary content
chunkSplitterSplit by heading hierarchyMatches the chapter-based structure of pre-sales documents, preserving the integrity of core modules such as requirements and solution roadmaps
customPdfParseEnabledAdapts to PDF formats of tender documents and vendor materials, retaining original layout and table structures
PARSE_FILE_TIMEOUT_SECONDS600 secondsAddresses parsing time for large tender documents or multi-page vendor materials, preventing mid-process interruptions
chunkSettingModeManual modeAllows adjustment of chunking rules for special documents such as quotation lists and demo scripts, adapting to unstructured content
UPLOAD_FILE_MAX_SIZE1000 MBMeets upload requirements for large historical project proposals or multi-page tender documents

Three common errors

  • Symptom: Image links are lost after importing a Word document, only image placeholders remain. Cause: Custom parsing configuration is not enabled, and the original path and domain information of images are not retained.
  • Symptom: Timeout errors occur when parsing large tender documents. Cause: The PARSE_FILE_TIMEOUT_SECONDS setting value is too small, failing to cover the full parsing time of large documents.
  • Symptom: A single requirement item is split into two separate chunks after chunking. Cause: The chunkSize setting value is too small, failing to match the full character length of a single requirement.

How to confirm configurations are properly set

  • Upload a typical tender document in PDF format, check if the parsed content retains the original table and heading hierarchy structure.
  • Upload a Word-format requirement research form that includes images, check if the parsed results contain complete domain information in image links.
  • Upload a historical project proposal with more than 100 pages, check if parsing completes within 600 seconds with no error prompts.
  • Adjust the chunkSize parameter, verify that a single requirement item is fully retained in a single chunk and not split.

The values provided are common starting points and should be evaluated against samples relevant to the specific use case.

Question material comes from public community discussions. Configuration values are common starting points and should be measured against your own samples. Verified on 2026-10-19.