SMMI (Security Maturity Model Integration) is a tool and framework used to assess and measure an organization's security capability maturity. It divides security capabilities into different maturity levels to help organizations understand their own security posture and provide directions for improvement.

The model comprises multiple maturity levels, each representing a different level of security capability. It also covers various aspects of security, such as personnel management, technical measures, and process systems.

By utilizing quantitative and qualitative indicators, the model assesses an organization's security capabilities, helping it identify the current level of its security posture.

During the implementation process, organizations need to evaluate their own security capabilities based on the model's indicators and standards; based on the assessment results, they should develop specific improvement measures and plans; and they should regularly reassess their security capabilities to ensure continuous improvement.

By applying the Security Maturity Model Integration, organizations can better manage and enhance their security capabilities, reduce security risks, and ensure the normal operation of their business.