We are using metadata for webpage optimization, and with the help of various tools and our experience metadata is good enough to optimize any webpage for SEO
then why microdata ?
Metadata in more generic in nature, sometimes it struggles to tell search engine how
the page should read, when microdata come with more clarity, we can tell search engine about every small information of our page, this helps achieving more accuracy.
for example, i can tell search engine who are the intended target audience for this page, just by using itemprop="audience"
Microdata is very useful to tell search engine about structured data of our webpage. Microdata has many tags, learn more about microdata at http://schema.org
Google has provided a tool
to test our microdata information, that will tell us how the page will look to search engine
microdata is perfect solution Search engine marketing professionals, SEO Professional, Digital marketing professionals, online business owner.