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Alves908

: Is there a representative logo for Structured Data which can be used on icons? My suspicion is that the answer very likely is "No." But I thought I'd ask anyway. Various common protocols, standards

@Alves908

Posted in: #JsonLd #Microdata #Microformats #Rdfa #SchemaOrg

My suspicion is that the answer very likely is "No."

But I thought I'd ask anyway.

Various common protocols, standards and technologies have their own logos:

e.g. GSM, Email, RSS, WiFi, HTML5, Bitcoin etc.

Even the concept of sharing across the web has its own representative logo. (Arguably it has several).

Does the family of structured data technologies (Microdata, RDFa, JSON-LD, Schema.org, Microformats etc.) also have a representative logo which can be used on icons?

(Even if it's one that's very rarely seen or used?)



Supporting Information: For the sake of completeness, I should add here, the precise reason why I want to deploy a structured data icon. It's because I am writing a custom CMS, in which - for each page - various types of data are editable.

I am presently building the console which enables the person editing to switch between the types of page data they want to edit (meta data / structured data etc.) and it makes UI sense to include some sort of pictorial representation on each icon which will take them to a different type of data to edit.

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@Ann8826881

Semantic Web

The W3C provides Semantic Web logos. Here are the versions without the W3C logo:









(usage guidelines)

But in my experience, these logos are used to represent the concept, they don’t necessarily signal that structured data is available for that page.

RDF

For signaling that RDF is available, W3C’s RDF icons are commonly used. Here is the version without the "RDF" label:





If the data is available in a separate file, this icon typically links to it. If the data is part of the page (e.g., with RDFa or JSON-LD), the icon either links to a SPARQL endpoint (if available), or is unlinked. The usage guidelines recommend to link to www.w3.org/RDF/, "if appropriate", but this is not always useful, of course.

Example: Tim Berners-Lee uses it on his homepage:





RDF icon for Microdata?

RDFa and JSON-LD are RDF serializations, so it makes sense to show the RDF icon when using these syntaxes.

But Microdata isn’t defined to be a RDF serialization. There are ways to transform Microdata to RDF with some constraints, and such a transformation will likely be part of the new W3C Microdata spec, too. This still doesn’t make it a RDF serialization, though.

So strictly speaking, the RDF icon probably shouldn’t be used when providing the data only in Microdata. Pragmatically speaking, maybe the use makes sense. To avoid this problem, simply use RDFa instead of Microdata ;)

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