A source of information which can be incorporated into a Product Information Management (PIM) system but which doesn't have internal organization.
Useful examples of Unstructured Data can include emails, white papers, research papers, and technical specification sheets. These sources may be informal or vary in structure. For example, two manufacturers' data sheet may have a completely different focuses even if both of them do have internal formatting. Useful information that could be leveraged into schema may be found in the form of Unstructured Data, so it should not be discounted when looking for information.