1. A computer program product, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therein that when executed by a computer performs operations, the operations comprising: in response to a determination that a target fragment in a target document matches a source fragment in a source document, generating a linkage metadata for the target fragment, wherein the linkage metadata is generated for target fragments from the target document and source fragments from multiple source documents to provide information on how the target fragments in the target document relate to the source documents having matching source fragments, wherein the source documents have content to compare against received target documents.
1. A computer program product, the computer program product comprising a non-transitory computer readable storage medium having computer readable program code embodied therein that when executed by a computer performs operations, the operations comprising: in response to a determination that a target fragment in a target document matches a source fragment in a source document, generating a linkage metadata for the target fragment, wherein the linkage metadata is generated for target fragments from the target document and source fragments from multiple source documents to provide information on how the target fragments in the target document relate to the source documents having matching source fragments, wherein the source documents have content to compare against received target documents. 2. The computer program product of claim 1 , wherein the linkage metadata is based on a metadata attribute from at least one of source document metadata, source fragment metadata, source fragment specific metadata, target document metadata, target fragment metadata, and target fragment specific metadata.