#Microdata

SeirdyThe four most popular ways to use RDF-based metadata on websites are RDFa-Core, RDFa-Lite, Microdata, and inline JSON-LD.I can’t use RDFa-Lite because I need <code>rel</code> HTML attributes. <a href="https://www.ctrl.blog/entry/rdfa-link-attributes.html" rel="nofollow noopener" target="_blank"><code>rel</code> silently upgrades RDFa-Lite to RDFa-Core</a>, which parses differently. I doubt all parsers upgrade correctly; some will try to parse RDFa-Core as RDFa-Lite. Conformant RDFa parsers upgrade RDFa-Lite pages to RDFa-Core despite many authors only being familiar with RDFa-Lite. I suppose resources like <a href="http://Schema.org" rel="nofollow noopener" target="_blank">Schema.org</a> and Google’s documentation only documenting RDFa-Lite markup worsens the confusion.With RDFa split between two incompatible alternatives with a confusing upgrade mechanism, the alternatives are Microdata and JSON-LD. I use structured data extensively; JSON-LD would duplicate most of the page. Let’s use <a href="https://seirdy.one/posts/2024/05/30/google-document-warehouse-api-docs-leak/" rel="nofollow noopener" target="_blank">this relatively short article</a> as an example. <a href="https://github.com/scrapinghub/extruct" rel="nofollow noopener" target="_blank">Exruct</a> can convert the embedded Microdata into a massive JSON document featuring JSON-LD. <a href="https://paste.sr.ht/~seirdy/7db88ad2405d4ab685130cd513cd9defafd9d2cf" rel="nofollow noopener" target="_blank">Take a look at the JSON-LD and HTML side by side</a>. Microdata attributes take a fraction of the footprint, encode the same information, and don’t require duplicating nearly the entire page. Originally posted on <code>seirdy.one</code>: <a href="https://seirdy.one/notes/2024/12/13/why-i-choose-microdata/" rel="nofollow noopener" target="_blank">See Original</a> (<a href="https://indieweb.org/POSSE" rel="nofollow noopener" target="_blank">POSSE</a>). <a class="hashtag" href="https://pleroma.envs.net/tag/microdata" rel="nofollow noopener" target="_blank">#Microdata</a> <a class="hashtag" href="https://pleroma.envs.net/tag/semanticweb" rel="nofollow noopener" target="_blank">#SemanticWeb</a> <a class="hashtag" href="https://pleroma.envs.net/tag/rdfa" rel="nofollow noopener" target="_blank">#RDFa</a> <a class="hashtag" href="https://pleroma.envs.net/tag/html" rel="nofollow noopener" target="_blank">#HTML</a>

Terence EdenHere's a fun scrap of CSS to see where Schema.org microdata is on a web page``` [itemprop]::after { content: "🗂️"; } [itemprop] { outline: 1px dashed pink; } ```Highlights any elements and displays a cute emoji after them.<a href="https://mastodon.social/tags/Schema" class="mention hashtag" rel="nofollow noopener" target="_blank">#Schema</a> <a href="https://mastodon.social/tags/Microdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#Microdata</a> <a href="https://mastodon.social/tags/HTML" class="mention hashtag" rel="nofollow noopener" target="_blank">#HTML</a> <a href="https://mastodon.social/tags/CSS" class="mention hashtag" rel="nofollow noopener" target="_blank">#CSS</a> <a href="https://mastodon.social/tags/WebDev" class="mention hashtag" rel="nofollow noopener" target="_blank">#WebDev</a> <a href="https://mastodon.social/tags/SemanticWeb" class="mention hashtag" rel="nofollow noopener" target="_blank">#SemanticWeb</a>

Ellen TimmerDe jacht op de bankgegevens van burgers | <a href="https://mastodon.nl/tags/microdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#microdata</a> <a href="https://mastodon.nl/tags/privacy" class="mention hashtag" rel="nofollow noopener" target="_blank">#privacy</a> <a href="https://mastodon.nl/tags/AVG" class="mention hashtag" rel="nofollow noopener" target="_blank">#AVG</a> <a href="https://mastodon.nl/tags/openfinance" class="mention hashtag" rel="nofollow noopener" target="_blank">#openfinance</a> <a href="https://ellentimmer.com/2024/11/22/microdata-18/" rel="nofollow noopener" translate="no" target="_blank">https://ellentimmer.com/2024/11/22/microdata-18/</a>

Jens Oliver Meiert“Microdata is most useful […] when it is used in contexts where other authors and readers are able to __________ new uses of the markup.”<a href="https://mas.to/tags/html" class="mention hashtag" rel="nofollow noopener" target="_blank">#html</a> <a href="https://mas.to/tags/microdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#microdata</a>

Ellen TimmerCBS weet op individueel niveau hoe iedere Nederlander er voor staat <a href="https://mastodon.nl/tags/microdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#microdata</a> "Aankondiging nieuwe methode om armoede te meten door CBS, SCP en Nibud" | CBS<a href="https://www.cbs.nl/nl-nl/nieuws/2024/29/aankondiging-nieuwe-methode-om-armoede-te-meten-door-cbs-scp-en-nibud" rel="nofollow noopener" translate="no" target="_blank">https://www.cbs.nl/nl-nl/nieuws/2024/29/aankondiging-nieuwe-methode-om-armoede-te-meten-door-cbs-scp-en-nibud</a>

GESIS German Microdata Lab🌟📢 Call for Abstracts! 🌟The 9th EU User Conference on EU Microdata will take place on March 6-7, 2025, in Mannheim! Organized by the German Microdata Lab in coop with Eurostat. 👉 Submission deadline: October 13, 2024 👈Further information & submissions: <a href="https://tinyurl.com/y3pknkz7" rel="nofollow noopener" translate="no" target="_blank">https://tinyurl.com/y3pknkz7</a> <a href="https://sciences.social/tags/EU" class="mention hashtag" rel="nofollow noopener" target="_blank">#EU</a> <a href="https://sciences.social/tags/GESIS" class="mention hashtag" rel="nofollow noopener" target="_blank">#GESIS</a> <a href="https://sciences.social/tags/microdata" class="mention hashtag" rel="nofollow noopener" target="_blank">#microdata</a>

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