A company is developing a new web application and wants to ensure it follows industry standards for security, accessibility, and interoperability. For security, they decide to implement authentication following the OpenID Connect standard. This allows users to login with their existing accounts from Google, Facebook etc. rather than creating new credentials. For accessibility, they ensure the application complies with guidelines. This covers aspects like color contrast, keyboard navigation, and screen reader functionality. For interoperability, they use common web standards like HTTP, HTML5, CSS, and JavaScript. What does the company apply?