Diversity, inclusion, and equality in design are values that aim to create products, services, and environments that are accessible, welcoming, and fair for all people, regardless of their age, gender, ethnicity, disability, sexual orientation, religion, or other characteristics. Diversity, inclusion, and equality in design can also bring positive business outcomes, such as economic growth, greater market share, and less employee turnover12.

Economic growth is a business outcome that represents the increase in the value of goods and services produced by an organization or a country over time. Economic growth can be influenced by various factors, such as innovation, productivity, efficiency, and competitiveness. Diversity, inclusion, andequality in design can contribute to economic growth by fostering creativity, innovation, and problem-solving, as well as by attracting and retaining diverse talent, customers, and partners12.

Greater market share is a business outcome that represents the percentage of sales or customers that an organization has in a particular market or industry. Greater market share can indicate the success and competitiveness of an organization, as well as its potential for growth and profitability. Diversity, inclusion, and equality in design can help achieve greater market share by expanding the reach and appeal of products, services, and environments to diverse and underserved markets, as well as by enhancing customer satisfaction, loyalty, and advocacy12.

Less employee turnover is a business outcome that represents the rate at which employees leave an organization and are replaced by new ones. Less employee turnover can indicate the stability and quality of an organization, as well as its ability to retain and develop its human capital. Diversity, inclusion, and equality in design can help reduce employee turnover by creating a positive and inclusive work culture, where employees feel valued, respected, and engaged, as well as by providing opportunities for learning, development, and career progression12.

References: 1: The business value of design | McKinsey 2: The Business Case for Diversity, Equity, and Inclusion - Salesforce.com

The Salesforce Lightning Design System (SLDS) is a CSS framework that helps designers and developers create applications with the look and feel of Lightning Experience. SLDS provides a library of design tokens, icons, components, utilities, and patterns that can be used to build consistent, responsive, and accessible user interfaces1. One of the features that SLDS provides for designers and developers is semantic and accessible component markup. Semantic markup means using HTML elements that describe the meaning and structure of the content, rather than just the presentation. For example, using 

 for a main heading, 

 for a paragraph, or  for a button. Semantic markup helps to improve the readability, maintainability, and SEO of the code2. Accessible markup means using HTML attributes and techniques that enhance the usability and accessibility of the content for people with disabilities. For example, using aria-label to provide a descriptive label for an element, role to indicate the function of an element, or tabindex to control the keyboard focus order. Accessible markup helps to ensure that the content can be perceived, understood, operated, and interacted with by people using assistive technologies, such as screen readers, keyboards, or voice commands3. SLDS provides semantic and accessible markup for its components, which are reusable UI elements that can be customized and composed to create complex interfaces. SLDS components follow the Web Content Accessibility Guidelines (WCAG), which are the international standards for web accessibility4. SLDS components also use the BEM (Block Element Modifier)naming convention, which is a methodology for creating clear and consistent class names for CSS selectors5. By using SLDS components, designers and developers can create user interfaces that are not only visually appealing, but also meaningful and accessible for everyone. References: Introduction to the Salesforce Lightning Design System, Semantic HTML: How to Structure Web Pages, Accessible Rich Internet Applications (WAI-ARIA), Web Content Accessibility Guidelines (WCAG) Overview, BEM — Block Element Modifier

 Service design is a practice that aims to design and deliver holistic, human-centered, and value-driven solutions that consider the needs and expectations of not only the individual users, but also the stakeholders, the employees, the partners, and the society involved in the service. Service design focuses on more than just the user interface or the user experience, but also on the processes, systems, interactions, touchpoints, and channels that enable the service to be delivered and consumed. Service design can help create engaging, connected, and social value-driven solutions that improve the quality, efficiency, and sustainability of the service . References:

• : User Experience Designer Certification Prep: Module 1: Understand User Experience Design
• : What is Service Design?

Service Design is a design practice that focuses on providing better experiences to users by understanding the context of their needs and how they interact with systems, services, and products. Service Design goes beyond User Experience Design by focusing on more than just individual people, and instead considers the entire ecosystem, including connected and social value-driven solutions. Salesforce provides more information on Service Design

 Shadow DOM is a web standard that encapsulates the internal document object model (DOM) structure of a web component. It isolates the component’s markup and styles from the rest of the page, and prevents the component from being affected by or affecting the global DOM. When designing or developing the stylesheets for a parent-child LWC structure, the following impacts of the shadow DOM should be considered:

• The CSS styles defined in the parent list component are not shared with the child items. This is because the shadow DOM creates a boundary between the parent and the child components, and the styles defined in the parent component do not cascade down to the child components. This means that each component needs to define its own styles, or import them from a common source. This also means that the parent component cannot directly style the child components, or vice versa12.
• Any custom styles shared between the list and child items should be imported from a shared CSS file. This is a recommended practice to avoid duplicating the same styles in multiple components, and to maintain consistency and reusability. A shared CSS file can be created as a static resource, and imported into the components using the loadStyle() method from the platformResourceLoader module. Alternatively, a shared CSS file can be created as a LWC component, and imported into the components using the @import directive134.

References:

• : [Shadow DOM | Lightning Web Components Developer Guide | Salesforce Developers]
• : [Light DOM | Lightning Web Components Developer Guide | Salesforce Developers]
• : [Understanding Shadow DOM and Template in LWC – SFDC Lightning]
• : [Shadow DOM, CSS and Styling Hooks in LWC what you need to know]
• : [How to Share CSS Between Lightning Web Components | Salesforce Developers Blog]
• : [How to Use a Shared CSS File in a Lightning Web Component | Salesforce Developers Blog]