The People Capability Maturity Model: Success in the future work of the company or organization, depending on the level of maturity, the ability of the company or entity. Maturity, the ability of the company that is based on the past performance of company. The People Capability Maturity Model (People CMMI) is a framework that helps organizations successfully address their critical people issues. Based on the best current practices in fields such as human resources, knowledge management, and organizational development, the People CMM guides organizations in improving their processes for managing and developing their workforces.