SEARCH ENGINE LAND: In How Search & Social Engines Are Using Semantic Search, I started this series with an overview. This article will give you a walk through on generating local and organization markup for a store.
We will look at an alternative vocabulary, namely GoodRelations, and take a deeper dive into the specifics of generating semantic markup for the e-commerce domain using GoodRelations.
To clarify, GoodRelations is a vocabulary for e-commerce. Microdata and RDFa are syntaxes. Schema.org for product is an alternate vocabulary for e-commerce.