First things first, all data is more or less structured. That being said, there is… Structured Data Semi-Structured Data Unstructured Data I tend to think of it as: data, composite or simple, with or without content. In that context, email is structured composite data (from, to, subject, date) with unstructured content (message body). The composite [...]Image may be NSFW.
Clik here to view.
Clik here to view.
