Authentic Salesforce Certification Exam User-Experience-Designer Questions Answers

A/B testing is a testing method that compares two versions of a user interface design to measure which one performs better in terms of a specific goal, such as form completions. A/B testing can help the UX Designer to evaluate the effectiveness of different design elements, such as layout, color, typography, copy, etc. A/B testing can also help the UX Designer to optimize the conversion rate of the landing page and increase the number of leads generated. References: [A/B Testing], [Optimize Your Landing Pages with A/B Testing]

According to the Web Content Accessibility Guidelines (WCAG) 2.1, the minimum color contrast ratio for normal text is4.5:11. This means that the difference in brightness (luminance) between the text color and the background color should be at least 4.5 times.This ensures that the text is readable by people with moderately low vision, color deficiencies, or contrast sensitivity1. The contrast ratio can be calculated using the formula:

L2​+0.05L1​+0.05​

whereL1​is the relative luminance of the lighter color andL2​is the relative luminance of the darker color2.The relative luminance is a value between 0 and 1, where 0 is black and 1 is white2.The contrast ratio can range from 1:1 (white on white) to 21:1 (black on white)2.

The contrast ratio requirement for normal text is lower for larger text or bold text, as they are easier to read at lower contrast.For large text (18 point or 14 point bold), the minimum contrast ratio is3:11.For graphics and user interface components, such as form input borders, the minimum contrast ratio is also3:13.For level AAA conformance, the minimum contrast ratio for normal text is7:1and for large text is4.5:11.

To evaluate the color contrast ratio of a site, there are various tools available, such as theContrast Checkeror theContrast Ratiotool. These tools allow users to enter the text color and the background color and see the contrast ratio and whether it meets the WCAG guidelines. They also provide suggestions for improving the contrast ratio if needed.

References:

• Understanding Success Criterion 1.4.3: Contrast (Minimum)
• Contrast Ratio - WCAG Color Contrast Checker
• WebAIM: Contrast Checker
• WCAG: Accessible colour and contrast ratios
• Contrast ratio - WCAG WG

Card sorting is a technique that helps UX designers understand the mental model of users and how they organize information into categories. Card sorting involves giving users a set of cards, each with a piece of information or a feature, and asking them to sort them into groups that make sense to them. The designer can then analyze the results and identify patterns, similarities, and differences among the users’ categorizations. Card sorting can help the designer suggest a suitable architecture for the new internal community, based on how the employees think about the site’s content and functionality. Card sorting can be done in person or online, using tools like OptimalSort or UserZoom1. References:

• [Salesforce Certified User Experience Designer Exam Guide], Section 2.1: Conduct user research
• [UX Designer Certification Prep: User Research], Unit 3: User Research Methods
• [Prepare for Your UX Designer Credential], Trailmix: User Research
• [Card Sorting: A Definitive Guide]1