Understanding the Five Levels of Process Maturity

The five levels of process maturity describe how consistently a process is governed, performed, measured and improved, progressing from ad hoc activity to optimised practice. Maturity is a way to match control and capability to the risk and value involved, not a badge to be collected.

• Define observable criteria for each level so assessments rest on what can be seen in practice.
• Assess evidence, not aspiration. Scoring without evidence produces a misleading picture. Assign an owner to each step, define what good looks like and when it will be reviewed.
• Target the level the service actually needs. In the article's example, a low-risk process may be effective at a controlled level, while a safety-critical process needs stronger prediction and optimisation.
• Plan capability improvements to close the gap between the assessed and target level, documenting decision rights and escalation paths.
• Track assessed maturity, maturity evidence quality and target-level gap as a set. Avoid treating maturity as a badge and assuming every process needs the highest level, and review results with delivery teams and affected consumers, because operational success and experienced value can diverge.