What the data for this category looks like
Marketing data for construction engineering comes primarily from project establishment ledgers, official tender announcements, owner demand letters, and past bid archives. Data updates follow project phase progress, with key milestones including project initiation, construction drawing design, tendering, and winning the bid. There is no fixed real-time update schedule. A single document typically includes fields such as project number, construction location, floor area, unit cost, qualification requirements, and duration requirements. Common units are square meters, ten thousand yuan, calendar days, and qualification levels.
What constraints these characteristics impose on forms and interactions
Phased data updates require forms to support dynamic loading of fields exclusive to different project phases, eliminating information redundancy caused by fixed fields. Specific units and classifications of fields require forms to have built-in unit validation rules that automatically match the corresponding units for floor area, cost, and duration. Multi-dimensional differences in qualifications and project parameters require forms to support custom field groups and option libraries. Marketing content forms must connect to tender announcement data sources, support synchronized updates of associated fields by project node, and accommodate the upload requirements of large-scale engineering files.
How to set configurations
| Configuration Item | Recommended Value | Rationale |
|---|---|---|
UPLOAD_FILE_MAX_SIZE | 500 MB | Construction engineering drawings, qualification certificates and other files typically do not exceed 500 MB per copy. This value covers most scenarios and avoids upload timeouts |
FORM_FIELD_UNIT_AUTO_MATCH | Enabled | Fields for construction engineering include specific units such as square meters and ten thousand yuan. Automatic matching reduces input errors |
SCHEDULE_SYNC_INTERVAL | 24 hours | Project data only updates at key milestones. Daily synchronization covers most phase changes |
RECALL_TOP_K | Top 8 entries | The number of reference cases for construction projects is typically limited. Too many recalls dilute the targeting of marketing content |
SIMILARITY_THRESHOLD | 0.75–0.85 | Demand descriptions for construction projects are highly professional. A higher similarity threshold is needed to filter irrelevant content |
FORM_VARIABLE_SELECTOR_ENABLE | Enabled | Supports users to choose whether to skip knowledge base retrieval, adapting to different consultation scenarios |
The parameter values provided on this page are all common recommended starting points for configuration. Actual values are affected by material format, data volume and business rules. Specific issues require specific analysis, and it is recommended to test on your own samples before finalizing.
Three common mistakes
- Symptom: The variable selection function in the form is not displayed or cannot be checked, and skipping knowledge base retrieval cannot be configured. Cause: The
FORM_VARIABLE_SELECTOR_ENABLEconfiguration item is not enabled, or the service is not restarted after configuration to take effect. - Symptom: A retrieval error is returned after switching the knowledge base name, with the
common:core.chaterror message. Cause: Dynamic binding rules for the knowledge base are not configured, and hard-coded knowledge base IDs cause matching failures after name switching. - Symptom: The loop body returns a null result after the loop index is incremented, or the
SenseVoiceSmallmodel cannot be selected for speech recognition. Cause: The scope of the loop variable is not correctly bound in version 4.8.17 of the open-source edition, or the speech recognition model enable configuration is not enabled in the backend.
How to confirm successful configuration
- Upload an engineering file that complies with the
UPLOAD_FILE_MAX_SIZElimit, and confirm that the upload process has no abnormal errors. - Fill in the corresponding fields in the form, and confirm that the validation rules trigger normally according to the field type.
- Switch the associated knowledge base identifier, initiate a retrieval, and confirm that no corresponding error message is returned.
- Enable the variable selection configuration, and confirm that the corresponding optional interaction items are displayed in the form.
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.