1. Browse to google.com
2. Search for "potato salad"
3. Experiment with the recipe search tool that appears on the left.
Schema.org embeds the metadata right in the webpage (using HTML microdata). That makes sense for search engines, but it means that only the publisher of the webpage can post metadata about it. Yes, there's such a thing as third-party microdata but the search engines don't pay attention to it. Plus there are other kinds of data that need to be shared between learning solutions. Conveniently, there's a complementary alternative.
The Learning Registry is a peer network of LR servers that exchange metadata similar to the way email providers exchange mail messages. In the LR architecture, metadata consists of assertions. Here's are some example assertions rendered into plain English:
- "CCSS.Math.Content.K.CC.A.1" is a "Learning Objective" defined as "Count to 100 by ones and by tens."
- "http://www.youtube.com/watch?v=rG_uUws1oC0" is a "Video" that "Teaches" learning objective "CCSS.Math.Content.K.CC.A.1" and is targeted at "ages 2-4".
LR assertions also include their provenance, that is the name of the organization making the assertion, when the assertion was made and a digital signature. This lets users of the LR have confidence in the origin of statements and filter for reliable sources.
- Recording of last Monday's SIIA webinar on LRMI.
- Official LRMI website.
- Video explaining the value of LRMI.
- Official Learning Registry website.
- Official Schema.org website.
- Schema.org blog post regarding pending incorporation of LRMI.
- Shared Learning Collaborative metadata efforts.