(2)Data are collected from various sources, including from ESCB members, certain commercial data providers, the public domain and administrative sources, and transmitted to the CSDB. There is a risk, however, that such input data may be inaccurate or incomplete. The CSDB system is able to reconcile partially inconsistent input data from different sources, and can detect incomplete or missing data. It automatically compounds input data from various overlapping sources to the extent possible into a complete and high quality single record.