Özet:

Purpose- The new regulation "The New Basel Capital Agreement" which has been created in order to eliminate the shortcomings of Basel I, in 1999, Basel II, aimed to modify each bank's own criteria, regulatory activities and preferences, according to the banks' own terms and practices. Basel II standards are also criticized as well as Basel I. The most critical aspect of Basel II was its standards to many issues and their difficulties in realization. With the criticism of Basel II and the emergence of the crisis, in 2010, Basel III regulations came into effect with its innovative standards such as strengthening capital, liquidity coverage ratio, and restrictions to leverage ratio. The aim of this study is to examine 'operational risk' and application of operational risk in banks as given in Basel II. Methodology- In this study, Basel II New Capital Accord risk categories within three pillars and the effects of Basel II regulation on operational risk are investigated.  Findings- Definition of operational risk, processes of risk measurement and management, operational losses Conclusion- Audit of information systems, CobIT processes and methods

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