Human-Computer Interaction Technology Review Outline

1. Cognitive psychology and ergonomics are the theoretical basis of human-computer interaction technology, while multimedia technology, virtual reality technology and human-computer interaction intersect and penetrate each other.

2. The English abbreviation of Graphical User Interface is called GUI.
   The characteristic of GUI is that the desktop隐喻技术 直接操纵 所见即所得

3. Natural and harmonious human-computer interaction stage
   多通道交互 情感计算 虚拟现实 智能用户界面 自然语言理解

4. Common Cognitive Processes
   Perception and Recognition Attention Memory Problem Solving Language Processing

5. Image Input Device
   2D Scanner Digital Camera

6. Raster display
   .
   How it works: A raster display breaks down an image into line by line lines, which are then scanned line by line for display. The number of lines per line is called "resolution" and is usually expressed in pixels. A monitor's refresh rate determines how many times per second the monitor can update the image, and is usually expressed in Hertz (Hz). The graphics card controls what is displayed on the monitor by sending electrical signals to it.
   Main technical indicators: The main technical indicators of grating displays include resolution, refresh rate, pixel density, color gamut, brightness, contrast, etc. Resolution refers to the number of pixels in a display, usually expressed by multiplying the number of horizontal pixels by the number of vertical pixels. The refresh rate indicates how many times a monitor can update the image per second, and a common value is 60Hz. Pixel density refers to the number of pixels per inch, and the common unit is PPI. The color gamut indicates the range of colors that the monitor can display. Commonly used color gamuts include sRGB, Adobe RGB, etc. Brightness indicates the maximum brightness of the display, usually expressed in cd/m2. Contrast represents the difference in brightness between the brightest and darkest pixels of a display.
   The main content of the graphics card: The graphics card is an important part of the computer system to control the image output. Its main function is to convert the digital signal of the computer system into an analog signal that the monitor can understand to control the monitor to display images. The main content of a graphics card includes a graphics processing unit (GPU), video RAM (VRAM), and video memory bandwidth. Among them, the GPU is the core component of the graphics card and is mainly used for processing graphics calculations. VRAM is the graphics card's memory that stores images and other graphics-related data. Video memory bandwidth refers to the data transfer rate between the graphics card and VRAM, usually expressed in GB/s. The performance of the graphics card directly affects the speed and quality of computer graphics processing, so it is necessary to consider the performance requirements of the graphics card when designing a computer system.

7. Three-dimensional space positioning equipment
   Space tracking locator (six degrees of freedom) Data glove haptic and force feedback device

8. Human-computer interaction input mode
   Request mode Sampling mode Event mode

9. Basic Interaction Techniques
   Positioning Strokes Specifying Values ​​Selecting Strings

10. Two-dimensional graphics interaction technology
    Geometric constraint gravitational field Drag rubber band technology Handle technology application example

11. The main idea of ​​the graphical user interface
    Desktop metaphor WYSIWYG direct manipulation
    Metaphor expression method: static icon animation video
    Metaphor can be divided into three types:
    direct metaphor (Word drawing)
    tool metaphor (save operation print operation)
    process metaphor (undo and restore operate)

12. Basic operators defined in the LOTOS model
    ||| alternation (can be executed in any order, but never synchronously)
    [ ] select
    | [a1,...,an] | synchronous
    [ > prohibit

allow

14. MVC has three levels: model layer view layer control layer

15. Web interface design principles
    User-centered (not only the commonality of users, but also the differences between them must be considered, different types of web sites target different audiences) Consistency, conciseness,
    and clear characteristics while taking into account different browsers clear navigation design

16. Constraints in mobile interface design
    Relatively scarce resources Wide variety of mobile devices

17. Principles of mobile interface design
    Simple and intuitive Personalized design for easy retrieval Consistent interface style to avoid unnecessary text entry
    Personalize services according to user requirements Minimize user errors

18. Usability Engineering
    Understanding User Competitiveness Analysis Setting Usability Goals User Participation in Design Iterative Design Working After Product Release

19. A good human-computer interaction page should be considered at the beginning: usability

20. Draw a use case diagram according to the topic
    

21. Draw a sequence diagram according to the topic
    

22. Draw a picture of the page according to the title (the drawing is reasonable, and the three elements of the interface must be: minimize, restore up and down, and close)