Human-Computer Interaction IS David Sprague

Transcription

1 Human-Computer Interaction IS 4300 David Sprague

2 Overview (for today) Introductions Overview of the Course Logistics Overview of HCI Some basic concepts Overview of Team Projects

3 Disclaimer 1. Touchy feely 2. Texts, Assignments, & web site 3. N00b

4 What is HCI? <see whiteboard for terrible drawing>

5 Why is HCI important? Who wants to wear Google Glass? Self-driving cars? Siri? Has anyone accidentally posted / sent sensitive information to the wrong person?...and there are FAR worse cases.

6 Who am I? HCI research background "Casual" InfoVis focus Developer Canadian (really nothing to do with the course)

7 Introductions 1. Name 2. Your background 3. Worst user interface you have ever used & why

8 Course Overview (the site is not up to date yet. To be done this week)

9 Overview of Course HCI Practice HCI Programming A little theory & research...make that a bunch if I can squeeze it in Prerequisites: Official: CS 3500 Object-Oriented Design Java basics (proficient in 3 weeks)

10 Texts Required: Benyon, Designing Interactive Systems, 3rd ed Optional: Nielsen, Usability Engineering ($11 digital) Rosson & Carroll, Usability Engineering: Scenario-Based Development of Human-Computer Interaction

11 Weekly Requirements Read ~50 pages Individual homework assignment Project assignment Paper Critique Describe and discuss readings in class

12 Typical Class 1. Submit assignments / paper critique / homework 2. Review assignments. Presentation and discussion by randomly selected students 3. Lecture on HCI topic 4. In class exercise 5. Discussion of next week s assignments.

13 Contact Info David WVH330, Office hours: Tuesday 10-11, Wednesdays Noon -1 pm Thursday 3-4 or by appt. TA None, so marking could be delayed.

14 Grading Paper Critiques (5%) Class participation (10%) Individual homework (25% divided equally) Team project (35% with 15% for T1-T8, 20% for T9) 5. Final Exam (25%)

15 Paper Critiques Useful to critically read primary sources Critiques typically have: Brief paper summary (max 1 paragraph) What you liked and research contribution What you disliked Conclusion Don't be too hard on yourself...

16 Homework Done individually but you can discuss with others Due at the start of class. Late homework is penalized 50%/day. If you get stuck, get help Corollary: to get help, start working early

17 Semester Project Guidelines Must have a substantial UI component UI must be interactive Creative, original, non-obvious is better Keep it simple-ish Ideas: research papers & past CHI, UIST, IUI, CSCW Each team must have 1-3 members Ideally complementary skills

18 Semester Project Schedule P1 Find a Project (2.5 weeks) P2 Requirements Analysis (1 week) P3 Conceptual Design (1 week) P4 Design Sketches (1.5 weeks) P5 Paper Prototyping (1.5 weeks) P6 Computer Prototyping (2 weeks) P7 Heuristic Evaluation & Prototype Revision #1 (1.5 wks) P8 User Testing & Prototype Revision #2 (2 weeks) P9 - Final Presentation and Report

19 Previous Semester Projects Advanced Directives for Geriatrics D&D Character Editor NU Course Finder NU Course Scheduler MBTA Alerts / Schedules Vocal Warm Up App Virtual Yoga Instructor

20 Overview of HCI What is HCI? Motivation for HCI Some basic concepts

21 What is HCI? (ACM SIGCHI Curricula for HCI) Human-computer interaction is a discipline concerned with the design, evaluation and implementation of interactive computing systems for human use and with the study of major phenomena surrounding them.

22 Where does HCI originate?

23 ...and it's old list=pl76dbc8d6718b8fd3 Parts 1, 2 & 5

24 IBM Simon Phone, fax, , address book, calendar, note pad Touch display Even an Easter Egg!

25 HCI Categories

26 What do People do with HCI? Interaction designers (IxD) Design of all the interactive aspects of a product User Interface Designers Web designers Mobile app designers Usability engineers - Focus on evaluating products, using usability methods and principles Information architects (IA) plan and structure interactive products and systems

27 What do people do with HCI? (cont) User experience designers (UX) Concerned with all aspects of user experience, including hardware, manual, help, and how the user feels. User Interface Engineer Front-end Engineer Research etc.

28 Usability is Important (from Nielsen Usability Engineering) Redesign of rotary dial telephone speeded up Users dialing behavior by 0.15 sec/digit, saving $1M in reduced demand on central switches. Redesign insurance forms to reduce customer errors: cost Aus$100,000; savings Aus$500,000/year. Redesign of Boeing 757 flight deck interface to reduce flight crew from 3 to 2

29 Usability is Important UI strongly affects perception of software Usable software sells better Ease of use ratings What tablet do you buy your parents? For many shrink wrapped products a single call to customer support can wipe out profits

30 HCI is Important (Therac-25 Accidents) Therac-25 performed both radiation treatment and Xrays

31 Therac 25

32 Computational Fluid Dynamics

33 Why do work in HCI? Interdisciplinary work Interact with people, learn about them and their work Help people Most under-appreciated system constraint It s "cool"

34 HCI is Interesting

35 HCI is Interesting

36 Building good UIs is hard Many iterations Much user interaction Many kinds of expertise 50% of the total lifecycle effort in modern software Survey of 74 projects, Myers & Rosson, CHI 92

37 Sometimes the details are the issue v=rybeuyetxqo

38 Some Basic Principles

39 HCI Development Cycle

40 To Do Next Class Read HCI development process (Benyon Ch 1 & 3) Critical Analysis of UIs (Benyon 10.2) Set up individual course web page (I1 1 week) Assignment 1: Post 3 project ideas Start getting up to speed on Java basics. Project P1 (thinking about projects 2.5 weeks) Review CHI Proceedings for inspiration.

41 Assignment 1 (no % grade) Due next class Pick 3 different project ideas that you would be interested in working on Make a rough sketch of a user interface (a scanned or photographed sketch on paper is best) Write a 1 paragraph proposal for each, further fleshing out the idea. Post your write-ups and sketches on a web page in your order of preference These will be used to help form project teams For ideas, review recent years' CHI proceedings.