0:00:01.247,0:00:04.505 Hi, I am Scott Klemmer, I’m an associate professor of computer science, 0:00:04.505,0:00:08.716 and I’d like to welcome you this online class, introducing human-computer interaction. 0:00:08.716,0:00:13.011 This online class is based on the class I’ve been teaching in Stanford for several years now, 0:00:13.011,0:00:16.364 and it synthesizes materials from a number of sources. 0:00:17.487,0:00:20.805 First and foremost is the human, the person that’s using the system 0:00:20.805,0:00:23.076 and the other people that they work and communicate with. 0:00:23.569,0:00:27.115 Then you got the computer, that’s the machine and the networked-up machines that run the system. 0:00:27.115,0:00:30.666 And then you got the interface that represents the system to the user. 0:00:30.666,0:00:35.646 HCI is the design, implementation and evaluation of user interfaces. 0:00:35.646,0:00:39.483 This course is going to teach you a set of tools for doing this effectively. 0:00:39.483,0:00:43.915 At the onset of the design project, we often don’t know what the problem is 0:00:43.915,0:00:47.746 or what the space of possibilities might be, let alone what the solution should be. 0:00:47.746,0:00:50.793 Consequently, real-world design is often iterative, 0:00:50.793,0:00:53.466 failed fast so you can succeed sooner. 0:00:53.466,0:00:56.966 Often it benefits from trying and comparing options. 0:00:56.966,0:01:01.182 Finally, it’s important to focus on the people who are going to use your system. 0:01:01.182,0:01:05.453 Good design brings people joy: it helps people do things that we care about, 0:01:05.453,0:01:08.053 and helps us connect people that we care about. 0:01:08.053,0:01:13.044 Good user interfaces can have a tremendous impact on both [the] individual’s ability to accomplish things, 0:01:13.044,0:01:15.820 and societies’. Graphical user interfaces help 0:01:15.820,0:01:18.410 with computing a hundreds of millions of tasks, 0:01:18.410,0:01:22.979 enabling us to do things like create documents, and share photo and connect with family 0:01:22.979,0:01:24.966 and find information. 0:01:24.966,0:01:30.095 Bad design is frustrating and costs lives: medical devices, airplane accidents 0:01:30.095,0:01:35.456 and nuclear disasters are just three domains where bad user interfaces and software errors 0:01:35.456,0:01:38.401 have caused serious injury and many deaths. 0:01:38.401,0:01:41.778 These are big ticket items that take a lot of time to produce. 0:01:42.009,0:01:44.960 What really gets me is that many of these interface problems 0:01:44.960,0:01:47.112 could have easily been avoided. 0:01:47.112,0:01:53.505 Fixing these problems requires following just basic principles like consistency and feedback. 0:01:53.689,0:01:56.631 If effective principles for interface design were widely known 0:01:56.631,0:01:59.793 some of these disasters might have been avoided. 0:02:00.331,0:02:03.658 This is one of the major reasons that I created this course. 0:02:03.658,0:02:08.150 Bad design causes problems and degrades people[’s] quality of life in many smaller ways too. 0:02:08.319,0:02:11.105 Think of all the time that you waste on your bank's website 0:02:11.105,0:02:16.129 or trying to figure out why the wifi doesn't work, or trying to set something on your digital camera. 0:02:17.083,0:02:19.654 Let's say these frustrations take 0:02:19.654,0:02:22.342 10 minutes a day for the average American. 0:02:22.342,0:02:28.245 With 300 million people in America alone, that’s 3 billion person-minutes a day. 0:02:28.245,0:02:31.120 or 18 billion person-hours a year. 0:02:31.659,0:02:34.957 That's a lot of time that we could’ve spent making the world a better place. 0:02:35.234,0:02:38.848 Oftentimes, the best interfaces become invisible to us. 0:02:38.848,0:02:43.861 When an interface becomes automatic by practice, by design and most often by a combination, 0:02:43.861,0:02:47.953 our attention shifts from manipulating an interface to accomplishing a task. 0:02:47.953,0:02:51.211 It’s kind of like a blind person who has practiced working with a cane. 0:02:51.211,0:02:55.308 After all those hours of practice, they no longer feel the cane. 0:02:55.308,0:02:59.641 Their sensory perception is at the end of the cane, experiencing the world. 0:02:59.641,0:03:03.820 That attentional shift is what happens when an interface becomes intuitive. 0:03:03.820,0:03:08.355 Designing great user interfaces requires enormous creativity and a lot of hard work. 0:03:08.355,0:03:11.710 But designing pretty good user interface is pretty easy 0:03:11.710,0:03:15.344 if you know some methods, techniques and principles. I’ll show how. 0:03:16.251,0:03:18.345 Summarize this introduction: 0:03:18.345,0:03:22.962 In this course you're going to learn a process where people’s tasks, goals and values drive development. 0:03:22.962,0:03:26.333 You’re going to learn to work with users throughout the process; 0:03:26.333,0:03:31.249 to assess decisions from the vantage point of users, their work and their environment; 0:03:31.249,0:03:36.587 to pay attention to people's abilities and situation; and to talk to the actual experts. 0:03:36.587,0:03:42.521 You'll learn to talk with a variety of users — both regular and extreme users — and a wide variety of stakeholders. 0:03:42.521,0:03:45.588 As my colleague John Zimmerman reminded me recently, 0:03:45.588,0:03:49.680 users are just one of the many stakeholders in the design process. 0:03:49.680,0:03:56.115 Other stakeholders matter too, helping ease development and costs of production, support maintenance,… 0:03:56.115,0:04:00.284 In designing for people, don't forget the other pieces of the puzzle. 0:04:01.731,0:04:05.620 In creating this class, I’ve integrated materials from a lot of sources, 0:04:05.620,0:04:09.060 including classes like James Landay’s, books like Don Noman’s 0:04:09.060,0:04:12.001 and papers like from the CHI Conferences. 0:04:12.186,0:04:14.141 For those who'd like to learn more, 0:04:14.141,0:04:17.557 I’ve put a Further Reading slide at the end of many of my lectures.