Choose the domain that best suits your skills and background and stick to that certification path.Personal certifications
The CMMI Institute offers two main CMMI certifications for individuals: CMMI Associate and CMMI Professional. These are meant to verify your skills and knowledge around CMMI fundamentals, maturity levels and process areas. You’ll need to pass these first in order to move on to any further certifications.
CMMI Certification
CMMI certification begins with two entry-level exams to earn your associate and then professional CMMI credentials. After that, if you meet the eligibility requirements, you can get certified as an appraiser or instructor.
The CMMI Institute offers different disciplines for appraiser and instructor certifications with the main three being acquisitions, development and services.