⇒ Problems with Microdata
Given my recent grumbling about Google Blink developers trying to [remove XSLT](https://groups.google.com/a/chromium.org/forum/#!topic/blink-dev/zIg2KC7PyH0) from Chrome, the current state of Microdata vs [RDFa](http://www.w3.org/TR/rdfa-core/) makes me think we're creating another level of incompatibilities on the Web. XSLT generally failed client-side on the Web due to the poor implementation within the various browsers. At this point, of course people aren't using it en masse because it just didn't work.
⇒ Open Data in a Private Context
> The open data premise is a grand idea which I fully support and need to replicate into other contexts.
⇒ Unified Content Descriptors
The [International Virtual Observatory Alliance (IVOA)](http://www.ivoa.net/) is an organization that helps set the technology standards used by Astronomers on the Web to exchange information. One interesting aspect of astronomical data is that how the data was collected is as important as the particular measurements or images of specific targets. As such, when information is exchanged, semantics about what particular columns of data actual mean and how they related to each other (e.g. an error estimate for another column) is very important.
⇒ Scientific Measurements in Schema.org
The physical sciences use the idea of a [quantity](http://en.wikipedia.org/wiki/Quantity#Quantity_in_physical_science) to measure the world around us. While that might seem simple, basing a measurement on a system of units that can be quantified, measured accurately, verified isn't exactly simple. Nevertheless, a great deal of time and effort has converged into the [International System of Units (SI)](http://en.wikipedia.org/wiki/International_System_of_Units) .