At its most basic level, metadata is about 5W1H—the who, what, where, when, why, and how of a data set, object, or resource (such as an article, a book, or a journal). Gathering these basic bits of ...

Every time you snap and share a photo, invisible data tags hitch a ride. These tags reveal where and when you took the photo, and even what device you used. Without a quick metadata audit, you're ...