Regulatory report generation fails due to CAD data validation errors in compliance workflows

PLM Windchill
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1

We’re unable to generate regulatory compliance reports because the CAD metadata validation is failing. The Compliance Reporting module throws validation errors when trying to extract material composition data from CAD files.

Error from the report generation log:


Validation Error: Required attribute 'MaterialComposition' missing or invalid
CAD File: Assembly_A123.prt
Report: RoHS_Compliance_Q2_2025
at wt.regulatory.ReportValidator.validateCADMetadata()

The CAD files were imported months ago and have all required attributes populated when we view them directly. But when the compliance reporting engine tries to validate the CAD metadata for report generation, it fails. We need to analyze the error logs to understand why the validation is failing, but the logs don’t provide enough detail about what specifically is invalid. This is delaying our compliance certification process. How can we fix the CAD metadata validation for regulatory reporting?

2

The compliance reporting module validates CAD metadata against stricter rules than the regular part view. Check if your MaterialComposition attribute has the correct data type and format expected by the regulatory report schema. The validation might be failing because of formatting issues even if the data exists.

3

The schema definition should be in the regulatory configuration files under WT_HOME/codebase/ext/regulatory/schemas. Look for MaterialCompositionSchema.xsd. You can also enable detailed validation logging by setting wt.regulatory.validator.logLevel=DEBUG in your site.xconf. This will give you more specific information about what part of the metadata is failing validation and why.

4

I’ve encountered similar validation errors when CAD attributes were populated manually versus through automated import. The compliance validator expects specific XML schema formats for material composition data. Check if your MaterialComposition attributes follow the required schema structure defined in the regulatory management configuration. You might need to reformat existing attribute values to match the expected schema.

5

I’ve resolved this exact validation issue across multiple Windchill 12.0 implementations. The problem involves all three focus areas and requires a systematic approach:

CAD Metadata Validation Configuration: The regulatory report validator uses a stricter validation schema than the standard CAD data viewer. The validator expects MaterialComposition data in a specific XML structure that includes substance identifiers, percentages, and compliance flags:

<MaterialComposition>
  <Substance id="CAS_7439-92-1" name="Lead">
    <Percentage>0.05</Percentage>
    <ComplianceStatus>RoHS_Exempt</ComplianceStatus>
  </Substance>
</MaterialComposition>

Your existing attribute values likely contain plain text like “Lead: 0.05%” which fails XML schema validation.

Compliance Reporting Validation Rules: The report validator checks multiple aspects:

  1. XML schema conformance (structure and data types)
  2. Required fields presence (CAS numbers, percentages)
  3. Valid compliance status values
  4. Proper encoding of special characters

Enable detailed validation logging to see exactly what’s failing:


wt.regulatory.validator.logLevel=DEBUG
wt.regulatory.validator.logSchema=true
wt.regulatory.validator.outputFailedRecords=true

This creates detailed error logs in MethodServer/logs/regulatory_validation.log showing the exact validation failure point.

Error Log Analysis and Resolution: After enabling detailed logging, analyze the validation errors to identify patterns:

  1. Schema Validation Errors: Attributes not matching expected XML structure

    • Solution: Transform existing plain-text attributes to XML format
    • Use a data quality script to reformat MaterialComposition attributes

  2. Missing Required Fields: CAS numbers or compliance flags not present

    • Solution: Enrich CAD metadata with missing regulatory data
    • Query substance databases to populate missing CAS identifiers

  3. Encoding Issues: Special characters in chemical names or formulas

    • Solution: Apply XML entity encoding to attribute values
    • Replace problematic characters: & → &, < → <, % → %

Complete Implementation:

First, create a validation test script to check current data quality:

QuerySpec qs = new QuerySpec(WTPart.class);
QueryResult qr = PersistenceHelper.manager.find(qs);
while (qr.hasMoreElements()) {
    WTPart part = (WTPart) qr.nextElement();
    String composition = part.getIBAValue("MaterialComposition");
    try {
        RegulatoryValidator.validate(composition);
    } catch (ValidationException e) {
        // Log parts with invalid composition data
    }
}

Then implement a data transformation workflow:

  1. Extract existing MaterialComposition values
  2. Parse plain-text format and identify substances
  3. Look up CAS numbers from regulatory substance database
  4. Transform to XML schema format
  5. Update part attributes with properly formatted XML
  6. Re-run validation test to verify compliance

Specific Fix for Your Issue: Based on your error, Assembly_A123.prt likely has MaterialComposition stored as plain text instead of XML. Create a batch update script:

WTPart part = (WTPart) PersistenceHelper.manager.refresh(partOid);
String oldValue = part.getIBAValue("MaterialComposition");
String xmlValue = MaterialCompositionTransformer.toXML(oldValue);
part.setIBAValue("MaterialComposition", xmlValue);
PersistenceHelper.manager.modify(part);

After transforming your CAD metadata to match the regulatory validator’s XML schema requirements, your compliance reports should generate successfully. The key is understanding that regulatory reporting has stricter validation requirements than standard CAD data viewing, and existing data often needs transformation to meet those requirements.

6

We had validation failures that turned out to be encoding issues. Material composition data with special characters or units wasn’t properly encoded for XML validation. Make sure your attribute values are XML-safe and properly escaped, especially if they contain chemical formulas or percentage symbols.