Un-controlled Documents - Normally , all the documents that are listed in the master document list or the supplier deliverable schedule are contractually agreed between the owner and contractor and are referred as "Controlled Documents".
All the other documents that are not contractually agreed between the Owner & Contractor - can include site photo's , technical standards for evaluation of the engineering drawings & documents etc are example of the "Uncontrolled Documents".
tBits CollabWrite - Document Control Module caters to both the controlled and uncontrolled documents interchange between the various parties associated in a project.