Metadata: A Primer
Useful information for searching, authenticating, and tracking data.
Although metadata exists for all types of information, it is especially important for digital information, where it can make large volumes of data much easier to use. This is particularly true in litigation, because metadata is the core of most digital forensics and e-discovery processes.
There are infinite types of metadata. Some are very common and useful in nearly every case; some are obscure but critical in certain circumstances. The types of metadata can be divided into three main categories.