Understanding RDFa Lite: A Simplified Approach to Structured Data
RDFa 1.1 Lite is a subset of RDFa 1.1 with five simple attributes: vocab, typeof, property, resource, and prefix. It is fully compatible with RDFa 1.1 and works well with schema.org terms. This structured data format provides a straightforward method for adding context to web content, allowing for improved search engine visibility and enhanced semantic understanding. Compare it with Microdata to understand its advantages and consider its utility for your web implementation.
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What is RDFa Lite? RDFa 1.1 Lite is a subset of RDFa 1.1 Five simple attributes: vocab, typeof, property, resource, and prefix Completely upwards compatible RDFa 1.1 Works well with schema.org terms Consists of five simple attributes: vocab, typeof, property, resource and prefix
RDFa Lite example The vocab attribute sets the default vocabulary for a block, typeof sets the class and property introduces a property <p vocab="http://schema.org/" typeof="Person"> My name is <span property="name">Manu Sporny</span> and you can give me a ring via <span property="telephone">1-800-555-0199</span> or visit <a property="url" href="http://manu.sporny.org/">my homepage</a> </p>
RDFa Lite vs. Microdata <p vocab="http://schema.org/" typeof="Person"> My name is <span property="name">Manu Sporny</span> and you can give me a ring via <span property="telephone">1-800-555-0199</span> or visit <a property="url" href="http://manu.sporny.org/">my homepage</a> </p> <p itemscope itemtype="http://schema.org/Person"> My name is <span itemprop="name">Manu Sporny</span> and you can give me a ring via <span itemprop="telephone">1-800-555-0199</span> or visit <a itemprop="url" href="http://manu.sporny.org/">my homepage</a> </p>
Microdata vs. RDFa lite serilization The RDFa Lite serialization looks almost isomorphic to the Microdata version Changes: itemprop -> property itemscope is dropped itemtype-> typeof vocab="http://schema.org/" added to the body or some other enclosing taga
RDFa Lite example: resource The resource attribute gives an object value (URL) for a subject and the prefix attribute eases mixing vocabularies <p vocab="http://schema.org/" typeof="Person" resource="#manu" prefix="ov:http://open.vocab.org/terms/" > My favorite animal is the <span property="ov:preferredAnimal">Liger</span> </p>
Conclusions One advantage of Microdata markup was it was simpler than RDFa RDFa Lite offers the same simplicity But with two advantages: You can add statements in other RDF vocabularies You can take advantage of more complex RDFa markup features if and when needed
