The rapid growth of Internet resources, digital collections and libraries are constructed with the help of metadata schemas. Each metadata schema has been designed based on the requirements of the particular user community, intended users, type of materials, subject domain, the depth of description, etc. Problems arise when building large digital libraries or digital information resource with metadata records prepared according to related schemas. Most of the users do not know or understand the underlying structure of the digital collection; but in reality, they are experiencing difficulties in retrieval. The challenge will be overcome through metadata harvesting. This paper is reviewing this harvesting with example.