1. A computer-implemented method for transforming unstructured information into content in a uniform context, comprising: with a federation service of a computer including a processor that presents a single view of source content repositories to a user: receiving a query specifying source content groups stored in a set of the source content repositories; running the query to retrieve metadata schemas of the source content groups, wherein each source content group has a metadata schema that describes a structure of metadata associated with the unstructured information in the source content group; extracting the unstructured information and metadata associated with the unstructured information from the set of the source content repositories; in response to user input, receiving selection of target content groups in another set of target content repositories; in response to receiving the selection of the target content groups, identifying metadata schemas of the target content groups, wherein each metadata schema describes a structure of metadata associated with the unstructured information in the target content group; creating a schema definition file including the retrieved metadata schemas of the source content groups and the identified metadata schemas of the target content groups; forwarding the unstructured information, metadata, and schema definition file to a transformation service of the computer; receiving, from the transformation service, transformed unstructured information and transformed metadata; and loading the transformed, unstructured information and the transformed metadata into the set of the target content repositories.