http://www.cesar.org.br/files/file/SCRUMxCMMMI_IEEE-final03.pdf

Abstract  –  Over  the  past  years,  the  Capability  Maturity
Model  (CMM)  and  Capability  Maturity  Model  Integration
(CMMI) have been broadly used for assessing organizational
maturity  and  process  capability  throughout  the  world  [20].
However, the rapid pace of change in information technology
has caused increasing frustration with the heavyweight plans,
specifications, and other documentation imposed by contractual
inertia and maturity model compliance criteria [4]. In the light of
that,  agile  methodologies  have  been  adopted  to  tackle  this
challenge. The aim of our paper is to present a mapping between
CMMI to one of these methodologies, the Scrum. It shows how
Scrum  addresses  the  Project  Management  Process  Areas  of
CMMI. This is useful for organizations that have their plan-
driven  process  based  on  CMMI  model  and  are  planning  to
improve its processes towards agility or to help organizations to
define  a  new  project  management  framework  based  on  both
CMMI and Scrum practices.