Inventor of EXPRESS
Douglas Schenck is the original inventor of the EXPRESS information modelling language, created during the PDDI (Product Data Definition Interface) program in 1982 at McDonnell Aircraft (now merged into Boeing), initiated by the US Air Force.
Contributions to EXPRESS
Schenck conceived and designed the EXPRESS language to facilitate “expressiveness” in modelling information — a need that arose from the challenges of exchanging product data across the aerospace supply chain.
His key contributions include:
Invention of EXPRESS (1982) — the foundational information modelling language
Co-author of Information Modelling: The EXPRESS Way (Oxford University Press, 1994), the authoritative reference manual on EXPRESS, co-authored with Peter Wilson
Project leader of ISO 10303-11:1994 (first edition), together with Prof. Bernd Wenzel, guiding the language through its international standardization at ISO
Impact
EXPRESS has become the backbone of industrial data exchange, used globally in aerospace, automotive, construction, and smart manufacturing. Schenck’s invention has enabled decades of interoperability across the manufacturing supply chain, and continues to power Industry 4.0 and digital twin applications.