–Erich Gamma’s doctoral thesis
described the patterns incorporated in ET++, a GUI application framework
–Since 1991, workshops have
been held each year in conjunction with OOPSLA to discover and document design
patterns
–The book Design Patterns by Gamma, Helm, Johnson, and Vlissides (the gang-of-four) was published
in 1995. It describes twenty-three
design patterns
–Other books are now being
published that present additional patterns and patterns in other domains.