Unit 23. QCF Level 3 Extended Certificate Unit 23 Human Computer Interaction

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1 Unit 23 QCF Level 3 Extended Certificate Unit 23 Human Computer Interaction

2 Unit 23 Outcomes Know the impact of HCI on society, the economy and culture Understand the fundamental principles of interface design Be able to design and implement user interfaces.

3 Assessment There will be 3 assignments. These include: 6 pass grades. 3 Merit grades. 2 Distinction grades. Assignment 1 P1, D1. Assignment 2 P2,P3, M1,M2. Assignment 3 P4,P5,P6, M3,D2.

4 Question What is HCI?

5 HCI Human-computer interaction (HCI) is: concerned with the design, evaluation and implementation of interactive computing systems for human use (ACM SIGCHI, 1992, p.6)

6 HCI to put it another way. Humans need to interact with ICT systems and this needs to be done in the most effective way taking into account the characteristics of the users.

7 What happens if we get HCI wrong? Three Mile Island accident, a nuclear meltdown accident, where investigations concluded that the design of the human machine interface was at least partially responsible for the disaster. From Wikipedia

8 Question How does HCI (interaction) differ from HCI (interface).

9 HCI History Input Output Early days connecting wires lights on display paper tape & punch cards paper keyboard teletype Today keyboard scrolling glass teletype + cursor keys character terminal + mouse bit-mapped screen + microphone audio Soon? data gloves + suits head-mounted displays computer jewelry ubiquitous computing natural language autonomous agents

10 Punched cards 1832 Korsakov used these cards in the Russian Police

11 Qwerty Keyboard Christopher Scholes invented this for use with typewriter

12 Cont - Eniac (1943) A general view of the ENIAC, the world's first all electronic numerical integrator and computer. From IBM Archives.

13 Cont - The Mark I paper tape readers.

14 Cont - Stretch (1961) A close-up of the Stretch technical control panel.

15 Cont - Bush s Memex 1945 Conceiving Hypertext and the World Wide Web a device where individuals stores all personal books, records, communications etc items retrieved rapidly through indexing, keywords, cross references,... can annotate text with margin notes, comments... can construct a trail (a chain of links) through the material and save it acts as an external memory! Bush s Memex device based on microfilm records, not computers! but not implemented mmm m mmmm mmm mm mmm m mmm mmm m mmmm mmm mm mmm m mmm mm mm mm mm mm m mm mm mm mm m m mm m mm mm m mm mm m mm m mm m

16 Douglas Engelbart The Vision (Early 50 s) I had the image of sitting at a big CRT screen with all kinds of symbols, new and different symbols, not restricted to our old ones. The computer could be manipulated, and you could be operating all kinds of things to drive the computer... I also had a clear picture that one's colleagues could be sitting in other rooms with similar work stations, tied to the same computer complex, and could be sharing and working and collaborating very closely. And also the assumption that there'd be a lot of new skills, new ways of thinking that would evolve "...Doug Engelbart

17 Ivan Sutherland s SketchPad (1963 PhD Thesis) Sophisticated drawing package introduced many new ideas/concepts now found in today s interfaces hierarchical structures defined pictures and sub-pictures object-oriented programming: master picture with instances constraints: specify details which the system maintains through changes icons: small pictures that represented more complex items copying: both pictures and constraints input techniques: efficient use of light pen world coordinates: separation of screen from drawing coordinates recursive operations: applied to children of hierarchical objects Parallel developments in hardware: low-cost graphics terminals input devices such as data tablets (1964) display processors capable of real-time manipulation of images (1968)

18 Development of the mouse Stanford Research Lab( 64) 1 st mouse Engelbart( 68) Demonstrated 1 st mouse of current uses Xerox PARC, Xerox Star( 81) 1 st commercial product

19 The first mouse (1964)

20 Evolution of HCI interfaces 50s - Interface at the hardware level for engineers - switch panels 60-70s - interface at the programming level - COBOL, FORTRAN 70-90s - Interface at the terminal level - command languages 80s - Interface at the interaction dialogue level - GUIs, multimedia 90s - Interface at the work setting - networked systems, groupware 00s - Interface becomes pervasive. Ubiquitous computing

21 Future of HCI (MR Tech.) Analysis of MR technologies in the movie Minority Report

22 Technologies Shown in the Minority Report Transparent display Mobile display Interaction using data glove 3D holographic display Holographic storage Interactive hologram Sensing human feeling Visualizing human feeling Real-time newspaper Virtual experience Interactive on-demand advertisement

23 Transparent Media

24 Interaction by Gesture

25 3D Holographic Display

26 Iris Recognition

27 Video g

28 Activity 1 Produce multimedia slides for presentation on biometric devices and their uses. Focus on design and use, use diagrams where possible. As little text as possible/practical. Volunteers to present to the class.

29 Virtual Reality update Sony rumoured to reveal Virtual Reality headset for the PS4

30 Future directions? Ultimate Reality Ultimate Interaction Intelligence (AI) Human machine symbiosis e.g. brain implants/ body/mind controlled prosthetic limbs.

31 Activity 2 Is HCI confined to PC s? How has HCI affected you and your class mates as learners? In groups of 2 or 3 produce a mind map for the main points. (You can use Microsoft word and shapes to do this). This can then be presented to the class. (include devices from around the home/work place; not just computer based devices.)