What is STEP-XML used for?
STEP-XML is useful in engineering workflows that need structured product-data exchange but also benefit from XML-based processing: integration pipelines, schema-aware validation and application-to-application data exchange. NIST has noted the advantages of XML as an exchange medium for STEP data.
Adoption has been driven by aerospace and automotive programs, for example when migrating data from legacy PDM and CAD systems or keeping product structure synchronized across collaboration environments. For software developers, STEP-XML is relevant when building CAD interoperability tools, data-processing services or digital thread workflows, and whenever product structure and linked external references matter as much as raw geometry.