Foundation of Human-Computer Technology.
- 1. Foundation of Human Computer Interaction By Sanie Bautista Cagayan State University Aparri Campus
- 2. Learning Objectives 1. Explain the foundations of HCI. 2. Distinguish the principles behind human-machine interaction. 3. Show when human factors first became an issue in computer hardware and software design. At the end of the lesson, the students should be able to:
- 3. Human: Individual user, a group of users working together, a sequence of users in an organization Computer: Desktop computer, large-scale computer system, Pocket PC, embedded system User interface: Parts of the computer that the user contacts with Interaction: Usually involve a dialog with feedback & control throughout performing a task What is HCI?
- 4. Human-Computer Interaction (HCI) is a field of study focusing on the design of computer technology and the interaction between humans (the users) and computers. What is HCI?
- 5. The primary goals of HCI are: Usability: Ensuring systems are easy to use, efficient, and accessible. User satisfaction: Designing systems that are enjoyable and reduce frustration. Effectiveness: Enabling users to achieve their objectives accurately. Accessibility: Making technology usable for people with varying abilities. Safety: Minimizing risks during interaction, particularly in critical systems like healthcare or aviation. What are the goals of HCI?
- 6. 1. Graphical User Interfaces (GUIs): Desktop operating systems like Windows or macOS. 2. Voice Assistants: Alexa, Siri, or Google Assistant. 3. Touch Interfaces: Smartphones, tablets, and kiosks. 4. Virtual Reality (VR): Immersive gaming or training simulations. 5. Wearable Technology: Smartwatches or fitness trackers. 6. Assistive Technologies: Screen readers for visually impaired users or voice-controlled devices for mobility-impaired users. Examples of HCI?
- 7. ✓ In the past, computers were expensive & used by technical people only ✓ Now, computers are cheap and used by non-technical people (different backgrounds, needs, knowledge, skills) ✓ Computer and software manufacturers have noticed the importance of making computers “user-friendly”: easy to use, save people time, etc. How to achieve “user-friendliness” in computer design? Why HCI?
- 8. The Human ✓ the central character in any discussion of interactive systems ✓ the user, the one whom computer systems are designed to assist ✓ the requirements of the user should therefore be our first priority 1
- 9. The Human Factor Displays Controls Sensors Responders Machine State Human Brain Interface Computer
- 10. Vision is the most dominant sense in HCI, as most interfaces rely on visual elements such as text, images, colors, and icons. Users process information through graphical user interfaces (GUIs) and visual feedback. Examples: • Graphical User Interfaces (GUIs • Augmented Reality (AR) & Virtual Reality (VR) • Color Contrast & Accessibility a. Vision
- 11. Touch enhances interaction through tactile feedback, allowing users to feel responses from digital devices. Examples: • Smartphone Haptics • Touchscreens & Gesture Control • Wearable Tech b. Touch (Haptic Feedback)
- 12. Sound is used in HCI for feedback, alerts, and hands-free interaction. Examples: • Voice Assistants • Auditory Alerts • Screen Readers c. Hearing (Auditory Perception)
- 13. Though less common in HCI, smell can be used in immersive experiences, such as VR. Examples: • VR Experiences • Medical Training Simulations d. Smell (Olfactory Perception)
- 14. Taste is rarely used in mainstream HCI, but research explores how digital devices can simulate taste experiences. Examples: Digital Taste Simulators Food Industry Applications e. Taste (Gustatory Perception)
- 15. a. Sensory Memory b. Short-Term (Working) Memory c. Long-Term Memory 2. Memory
- 16. A. Sensory Memory Stores brief impressions of stimuli (visual, auditory, tactile). Critical for UI responsiveness—delays can disrupt perception. Example: Visual persistence in animations (e.g., smooth transitions in UI). a. Sensory Memory
- 17. Holds information for a few seconds to minutes. Example: Remembering a verification code or navigation menu choices. b. Short-Term (Working) Memory
- 18. Stores knowledge, skills, and past experiences. Affects learnability and recall of UI elements. Example: Users recall familiar icons (e.g., floppy disk for "Save"). c. Long-Term Memory
- 19. Thank you!