(3)Providing input data for the CSDB involves collecting data from various sources and transmitting it to the ECB via the CSDB. This collection by the ECB is necessary in order to undertake the tasks of the ESCB, particularly those regarding monetary policy and the stability of the financial system. These sources include the NCBs and the non-euro area NCBs, ECB-internal sources, certain commercial data providers, administrative sources, and the public domain.