Maturity models are a powerful way to organize progression through towards excellence in a discipline. One of the earliest maturity models was the Capability Maturity Model (now the CMMI for Capability Maturity Model Integration). In recent years’ maturity models have become a useful way to organize upsell strategies and to frame pricing models and pricing strategy.
There is a tension in service design between outcomes and experience. Given its roots in the design world, service design is often focussed on the experience. But in some cases the outcome is all that matters. In others, the experience is the outcome. This can complicate the pricing of services and new models are needed.