Google, Yahoo and Bing introduced*Schema.org, a site that hosts a large list of website markup, which can be used by webmasters to mark up their content/pages, so search engines can better understand what their content is about.*
Schema.org uses Microdata as its shared markup vocabulary; itís composed of a new set of HTML tags that can help search engines classify a web contentís relevance through its important segments such as: author, topical scope and content type; you can view their*full list of schemas.
Basically, using Microdata or Schemas in your web pagesí code can increase the chances of having your page show up on SERPs in rich snippets.
To make sure that you have done the code on your pages correctly, you can use*Googleís rich snippets testing tool*to test what your listing will look like once Google parses your page(s).
One of the main benefits of employing Schemas on your pages and in aiming to get rich snippets for your landing pagesí Googleís search results is that it can somehow affect search engine usersí judgment when seeking for information, as these rich-looking snippets often result to high SERP click-through, which means your search listing is very capable of attracting highly targeted traffic to your site, even itís not in the highest position.
Practice Head (QA / Software Testing)