What is described as a governance system in the context of COBIT?

In the context of COBIT, describing a governance system as "a set of components that provide governance and management of enterprise IT" captures the essence of how COBIT functions to help organizations achieve their objectives and manage their IT resources effectively. This definition encapsulates the holistic approach of COBIT, which includes a framework that integrates processes, roles, responsibilities, performance management, and tools designed specifically for governance and management.

COBIT emphasizes governance as a crucial aspect of enterprise IT, ensuring that IT aligns with the business goals and delivers value while managing risks and resources. Each component serves a distinct purpose, such as defining how decisions are made, establishing accountability, and ensuring compliance with regulations and standards. This comprehensive view enables organizations to optimize their IT investment, improve performance, and ensure that IT is directed towards fulfilling business strategies.

The other options do not adequately encompass the broader definition of governance as understood within COBIT. While compliance checks, risk management, and service delivery models are essential aspects of IT management, they represent narrower focuses that don't capture the full governance framework that COBIT provides.