Capability Maturity Model vs. Capability Map: Assessment vs. Inventory

The Capability Maturity Model (CMM) and the Business Capability Map are two of the most important tools in business architecture — and they are frequently confused because they both use the word 'capability.' In practice, they serve fundamentally different purposes and must be used in a specific sequence to drive strategic value. A Business Capability Map is an inventory: a structured, hierarchical list of all the things an organization must be able to do to deliver its value proposition. It answers the question 'What capabilities do we have or need?' A Capability Maturity Model is an assessment framework: a structured way to evaluate how well each capability is currently performing, and what 'good' looks like at each level of maturity. It answers the question 'How well are we performing each capability?' The relationship between them is sequential and complementary. You need a capability map before you can apply a maturity model — you cannot assess the maturity of capabilities you haven't defined. But together, they create one of the most powerful strategic planning tools available: the ability to identify which capabilities are strategically critical but currently underperforming, and prioritize investment accordingly.