  The Digital Public Library of America (DPLA) aggregates metadata for cultural
heritage materials from 20 direct partners, or Hubs, across the United States.
While the initial build-out of the DPLA's infrastructure used a lightweight
ingestion system that was ultimately pushed into production, a year's
experience has allowed DPLA and its partners to identify limitations to that
system, the quality and scalability of metadata remediation and enhancement
possible, and areas for collaboration and leadership across the partnership.
Although improved infrastructure is needed to support aggregation at this scale
and complexity, ultimately DPLA needs to balance responsibilities across the
partnership and establish a strong community that shares ownership of the
aggregation process.
