Usability engineering in web design aims to create websites that are easy to use, understand, and navigate for all users, including those with disabilities.

WCAG 2.0 (Web Content Accessibility Guidelines) is an international standard that provides guidelines for making web content accessible to people with disabilities.

Alt text (alternative text) provides a textual description of an image, which is essential for users who are visually impaired or using screen readers.

Consistency in web design ensures that users can easily find and understand the functionality of different elements across the website.

A sitemap provides a hierarchical structure of a website's pages, making it easier for users to navigate and find the information they need.

Affordance in web design refers to the design elements that indicate how an object can be used, making it intuitive for users to interact with.

User testing involves observing and collecting feedback from users as they interact with a website, helping designers identify usability issues and improve the user experience.

Feedback in web design ensures that users are informed about the outcome of their actions, enhancing the overall user experience.

Responsive web design aims to create websites that can adapt their layout and content to different screen sizes, providing a consistent user experience across devices.

Clarity in web design involves using language that is easy to understand and avoiding jargon or technical terms that may confuse users.

Heuristic evaluations involve experts reviewing a website against a set of established usability guidelines to identify potential usability issues.

Simplicity in web design involves minimizing clutter and unnecessary elements to create a clean and user-friendly interface.

Cognitive walkthroughs involve experts simulating the thought process of users as they navigate a website, helping designers identify potential usability issues.

Visual Hierarchy in web design involves organizing and structuring visual elements to create a clear and intuitive flow of information.

Usability testing involves observing and collecting feedback from users as they interact with a website, helping designers assess the effectiveness of the design and identify areas for improvement.