 How many of you have ever heard of Kent Beck? How many of you have ever heard of Ward Cunningham? Kent Beck and Ward Cunningham had a long partnership, many, many years. Most of the innovations came from Ward Cunningham. Kent Beck was the one that published everything and stood on stages and so on. I'm Dave West, aka Kent Beck. And Rebecca Rickner is Ward Cunningham. So responsibility for everything that goes on here today is hers, but I'm just the voice. So we're going to talk about design, design thinking, kinds of concepts today. When the word design comes to people's minds, these are the kinds of images that might be conjured up that kind of capture the popular conception of what design is. Something that's fancy and embellishment, pretty, makes things beautiful. And the technical realm, we probably think of design in the terms of user interface design and more recently in the notion of user experience design. Design became a real strong buzzword, of course, with the success of the Apple iPhone. Everybody says, wow, they're selling billions of these things. Why are they selling them? Well, it must be the design. It must be those really sexy, patented, rounded corners that makes all the difference in the world. Not true, but these are kind of popular conceptions of design that bring the notion or the idea of design to the forefront. Today almost everybody is using the word in some kind of a context or another, but it's not always clear exactly what they understand or don't understand or where they're trying to take the idea or notion of design. These are examples of the popular interest in the business press primarily. Business, the enterprise side of things has jumped on this design thing six, seven years ago and started talking about, well, if we're going to be a sustainable, adaptive, innovative organization, we've got to get a handle on this design thing and they published hundreds of books. This is probably a very 1% of the number of books that have been published putting design into this arena. So what is design? These are three kind of common definitions of what you might see in terms of design. A designer might talk about it using...