Diagram markup is code (semantic vocabulary) that you put on your site to enable the web indexes to return more useful outcomes for clients. In the event that you've at any point utilized rich pieces, you'll see precisely what really matters to construction markup.

Schema markup is code (semantic vocabulary) that you put on your website to help the search engines return more informative results for users.

When added to a site page, outline code makes an improved depiction (generally known as a rich piece), which shows up in indexed lists.