The web is designed to be consumed by humans, and much of the rich, useful information our websites contain, is inaccessible to machines. People can cope with all sorts of variations in layout, spelling, capitalization, color, position, and so on, and still absorb the intended meaning from the page. Machines, on the other hand, need some help. A new kind of web—a semantic web—would be made up of i
![Introduction to RDFa](https://cdn-ak-scissors.b.st-hatena.com/image/square/d07697cd1599e1b9ce189696e6bc127b161b9f99/height=288;version=1;width=512/https%3A%2F%2Fi0.wp.com%2Falistapart.com%2Fwp-content%2Fuploads%2F2012%2F07%2FRDFa.jpg%3Ffit%3D540%252C221%26ssl%3D1)