Design Patterns 15 Years Later: An Interview with Erich Gamma, Richard Helm, and Ralph Johnson | Design Patterns 15 Years Later: An Interview with Erich Gamma, Richard Helm, and Ralph Johnson | InformITErich Gamma, Richard Helm, and Ralph Johnson talk to Larry O'Brien about Design Patterns, 15 years later. Larry O'Brien: 85,000 apps for the iPhone have been developed and deployed in the past year-and-change. One can write a globally-accessible "Hello, World! The time is X" Web page in just one line of PHP, for instance. "Designing object-oriented software is hard," are the first words of Design
