The main objective of this thesis is to meet Governance as a new approach in company organization, especially in IT sector. The idea is about harmonization of IT and business strategy, that should ensure achieving company goals and missions, and lead company in the right direction of advancement, what is directly connected with implementation of relevant measures of IT processes. As chapter "Governance", is describing how this approach should by ensure in whole organization on a different levels. We can translate Governance as implementation of certain best practices and procedures that lead company to process standardization and formalization. The most exercising methodologies and guidelines in IT sphere as ITIL, Val IT, CobiT, ISO 27000 are reviewed in thesis. By these methodologies organizations should be able to better optimize processes and accomplish regulation frame in particular industry. Another very important contribution of process standardization is by providing better possibilities for measurement and assessment, that is reviewed in chapter "Evaluation of IT processes performance". There is also transparent guideline which provides a simple steps procedure how to implement IT Governance in organization using CobiT and Vat IT. As this branch is relatively "young", especially in Czech Republic, management is still familiarizing with it. Last chapter is dedicated to analyze approach to ITG in Czech Republic banking sector.