Digital libraries (DLs) have become a major part of the mainstream library landscape,
and open source software (OSS) has become a worldwide phenomenon. According to
the Digital Library Federation (DLF) digital libraries are:
Organizations that provide the resources, including the specialized staff, to select, structure,
offer intellectual access to, interpret, distribute, preserve the integrity of, and ensure the
persistence over time of collections of digital works so that they are readily and economically