Calibre Diona has been partnering with Autodesk for 20 years, and our products have enabled them to continue innovating to deliver valuable design and engineering solutions to their customers as both CAD technology and engineering practices have evolved from the drawing board to AutoCAD and now to BIM.
Take context from the input text and decide on the accurate relationship between 'AutoCAD' and 'Autodesk' from the options provided.
Options: owner of, developer, distribution format, legal form