Capability Maturity Model Integration (CMMI) is a way to make sure that a company is doing the best they can to make their products and services better and better. It is like a checklist of things that a company should be doing to make sure their quality is as high as it can be. For example, they should be setting and following processes to make sure they are always improving, they should be measuring how they are doing, and they should be using feedback from customers to keep getting better. CMMI helps companies strive for higher and higher levels of quality, so that their products and services will be the best they can be.