What Data for This Category Looks Like
Data sources for this category include product 3D models and GD&T, process routes, coordinate measuring machine (CMM) data, on-site trial feedback, and metrology systems. Daily generated documents include fixture requirement specifications, positioning datum schemes, fixture drawings, gauge operation manuals, acceptance reports, calibration records, and change histories. Data is updated per individual project, each product change, and scheduled calibrations. Document fields include positioning datum parameters, clamping scheme details, GD&T tolerance values, CMM measurement results, and calibration cycles. Units include millimeters, micrometers, calibration cycle days, and other standard engineering units.
Constraints for Multi-Turn Dialogue and Prompt Engineering
This category of data is updated per individual project, product change, and scheduled calibration. Multi-turn dialogue must strictly tie to the current project’s context to prevent mixing content from other projects. Documents include professional parameters such as GD&T tolerances and CMM measurement results. Prompts must clearly define rules for referencing specific fields to ensure outputs align with industry standards. Calibration records and change histories have time-based relationships. Context for multi-turn interactions must filter expired change entries to keep referenced content valid. Data sources vary. Multi-turn dialogue must guide users to explicitly specify the document type to call, avoiding confusion between information from different sources.
Configuration Settings
The following configurations are based on FastGPT v4.17.0.
| Configuration Item | Recommended Approach | Rationale |
|---|---|---|
| Context Association Identifier | Bind to current project chatId | Ensure multi-turn dialogue only calls documents from the current project, avoid cross-project data confusion, and match the data update feature per project |
| Context Window Size | First 1000–1500 characters | Adapt to the single-paragraph length of fixture documents, retain complete information for key parameters such as GD&T tolerances and CMM data |
| Global Variable Loading | Call current project variables | Automatically bring in fixed parameters including project number, product model, and calibration cycle, reduce repeated input steps |
| Message History Processing | Retain the most recent 3 interactions in messages order | Filter redundant early conversations, focus on the specific needs of current technical document cross-review |
| Retrieval Scope Limitation | Only call the document library of the current project | Match the data update feature per project, avoid retrieving expired change records or documents from other projects |
| Empty Result Trigger | Trigger a prompt when two consecutive valid returns are not received | Correspond to scenarios where tool calls return empty, guide users to supplement document type or parameter information |
Three Common Configuration Errors
- Calling a chart tool during multi-turn dialogue results in an empty chart or no results: The retrieval scope was not limited to the current project’s document library, and cross-project or expired change records were called. This prevents matching the required fixture drawings or CMM data.
- Dialogue content cannot be exported or has association errors: The export configuration for
messagesis not enabled, or the current project’s context identifier is not bound. This prevents associating complete records for the corresponding review task during export. - No processing occurs after the large language model returns
emptyor an error: The prompt logic for empty result triggers is not configured. Abnormal return content is passed directly to the front end, and users are not guided to supplement parameters or change document types.
How to Confirm Configurations Are Correctly Applied
- Launch a multi-turn dialogue, enter keywords for the current project’s fixture requirements. Verify that returned content only includes document fields from the current project, with no cross-project or expired change records.
- After triggering a tool call, check that returned parameters include category-specific fields such as GD&T tolerances and CMM measurement results, with no irrelevant content.
- Simulate a scenario where the large language model returns
empty. Confirm that the system triggers the preset prompt to guide users to supplement necessary information. - Test the dialogue export function. Confirm that the exported content includes the complete
messagesrecord of the current dialogue, with no missing links.
The values provided are common starting points and should be measured against the reader's own samples.