Charles Simonyi and Programming
In your otherwise excellent coverage of Charles Simonyi and his pioneering concept of intentional programming ("Anything You Can Do, I Can Do Meta," January/February 2007), you unfortunately included a throwa­way remark about the Unified Modeling Language (UML): "But UML diagrams can't be transformed into finished software, which is Simonyi's dream for intentional programming."

This would come as quite a surprise to a large and growing community of software architects and developers. While it is true that UML, now a staple of every major software-­development tool worldwide, is often used only for "sketching" an architecture or design, people have for years been successfully employing the full capabilities of UML "all the way down" to executing systems.
Richard Mark Soley
Needham, MA