Hci Lecture 4 Pdf

Human Computer Interaction (HCI) CSBP 316 CIT, UAE University Introduction to HCI LECTURE 4  1 2 UI Design/Develop Process? Principle of User-Centered Design 1 – Analyze user’s goals & tasks (user + designer) – Create design alter...

Human Computer Interaction (HCI) CSBP 316 CIT, UAE University Introduction to HCI LECTURE 4  1 2 UI Design/Develop Process? Principle of User-Centered Design 1 – Analyze user’s goals & tasks (user + designer) – Create design alternatives (designer) – Evaluate options (with the user) – Implement prototype (designer) – Test (by the user) IMPLEMENT – Refine (designer) DESIGN USE & EVALUATE 3 Above UCD values 1 Know the User? – Physical abilities – Personality & culture – Knowledge & skills – Motivation Two Fatal Mistakes? 1. Assume all users are alike 2. Assume all users are like the designer 4 Stop looking at user as a Perfect User (every designer ‘s wish) 1 5  1 6  1 7  1 8  1 9  1 10  1 11  1 Explanation before Class Exercise Accessibility and Inclusiveness 12 Accessibility and Inclusiveness in HCI Accessibility and inclusiveness in HCI are principles that ensure digital systems, interfaces, and technologies are usable by people of all abilities, backgrounds, and circumstances. 1 1. Accessibility in HCI Accessibility focuses on removing barriers so that people with disabilities can effectively interact with technology. Key Principles of Accessibility: 1. Perceivable Ensure information and user interface components are presented in ways that all users can perceive. o Example: Providing alternative text for images for screen readers. 2. Operable Make all interactive elements usable with a range of input methods, such as keyboard-only navigation or voice commands. o Example: Designing buttons that can be activated via a keyboard shortcut. 3. Understandable Ensure users can comprehend the content and interface. o Example: Using simple language and clear instructions. 13  1 Areas of Accessibility in HCI: Visual Accessibility: Solutions for users with blindness or low vision (e.g., screen readers, high-contrast text). Hearing Accessibility: Features for users who are deaf or hard of hearing (e.g., captions, transcripts). Motor Accessibility: Tools for users with limited mobility or motor impairments (e.g., adaptive input devices, voice commands). Cognitive Accessibility: Interfaces that reduce cognitive load for neurodiverse individuals (e.g., simplified layouts, customizable interfaces). 14  1 2. Inclusiveness in HCI Inclusiveness extends beyond accessibility, aiming to create systems that cater to a diverse range of users, including those with different cultural, linguistic, socioeconomic, and age-related needs. 15 Key Aspects of Inclusiveness: 1 1. Cultural Inclusivity Accommodating diverse cultural contexts and languages. o Example: Offering localization and support for multiple languages. 2. Technological Inclusivity Designing for users with varying levels of digital literacy and access to technology. o Example: Supporting devices with lower hardware capabilities. 3. Socioeconomic Inclusivity Addressing cost barriers and ensuring accessibility for economically disadvantaged users. o Example: Offering free or low-cost versions of applications. 4. Age Inclusivity Designing systems suitable for users of all ages, from children to older adults. o Example: Using age-appropriate language and interaction styles. 16 Examples of Accessibility and Inclusiveness in Practice 1. Web Accessibility 1 Websites following the Web Content Accessibility Guidelines (WCAG) provide features like keyboard navigation, screen reader support, and alternative text for media. 2. Mobile App Design Apps with voice commands, high-contrast themes, and customizable interfaces cater to diverse users. 3. Gaming Games offering customizable controls, subtitles, and colorblind modes ensure inclusivity for players with disabilities. 4. Public Kiosks Interactive kiosks with audio instructions, and adjustable heights are accessible to users with disabilities. 17  1 Prepare for a class assignment on Tuesday 28-01-2025 TOPIC: Accessibility and Inclusiveness 18