The thing they all have in common is "archiving" -- long-term storage and preservation of data that's inactive but may be needed in the future. However, the difference is in the types of data that are being archived. For example, structured data typically includes database records. Unstructured data includes documents, images and a wide range of other file types. Semistructured data often refers to email systems where unstructured email text and attachments are stored within structured databases. Some vendors try to do it all through a single unified product or separate products within a family (aka a "suite").
The point is that each archiving product has a different focus. File
Go back to the beginning of the File Archiving FAQ Guide.
This was first published in April 2007