In the three-step process to use an extension, which step comes first?

In the three-step process to use an extension, which step comes first?

• A. Define extension
• B. Register extension
• C. Use extension
• D. None of the above

Answer: (A)

The first step is to define the extension. Creating a formal definition describes its URL, name, and how its content is structured, giving everyone a shared contract for what the extension means and how its data should be stored. Once that definition exists, you register or publish it so it’s discoverable and reusable by others. Only after defining (and registering) can you attach the extension to a resource by referencing its URL and providing the data. So the correct first step is defining the extension.

The first step is to define the extension. Creating a formal definition describes its URL, name, and how its content is structured, giving everyone a shared contract for what the extension means and how its data should be stored. Once that definition exists, you register or publish it so it’s discoverable and reusable by others. Only after defining (and registering) can you attach the extension to a resource by referencing its URL and providing the data. So the correct first step is defining the extension.