Distinction between ITIL and CMMI

1. ITIL

ITIL (formerly an acronym for Information Technology Infrastructure Library) is a set of detailed practices for IT service management (ITSM) that focuses on aligning IT services with the needs of business. ... Organizations that wish to implement ITIL internally do not require this license.

2. CMMI

The Capability Maturity Model Integration (CMMI) is a process and behavioral model that helps organizations streamline process improvement and encourage productive, efficient behaviors that decrease risks in software, product and service development.

Distinction between ITIL and CMMI

ITIL	CMMI
ITIL is a set of comprehensive and coherent codes of best practices, and ITIL scope extend to controlling and managing all aspects of IT related operations.	Capability Maturity Model Integration (CMMI) is aprocess improvement approach whose goal is to help organizations improve their performance. CMMI can be used to guide process improvement across a project. a division, or an entire organization. Currently supported is CMMI Version 1.3
ITIL is a non-proprietary tool that encourages the private sector to develop services and products such as training, consultancy, and tools to support ITIL.	CMMI helps “integrate traditionally separate organizational functions, set process improvement goals and priorities, provide guidance for quality processes, and provide a point of reference for appraising current processes. CMMI currently addresses three areas of interest: Product and service development — CMMI for Development (CMMI-DEV), Service establishment, management, and delivery — CMMI for Services (CMMI-SVC), and Product and service acquisition — CMMI for Acquisition (CMMI-ACQ). CMMI models provide guidance for developing or improving processes that meet the business goals of an organization. A CMMI model may also be used as a framework for appraising the process maturity of the organization.
ITIL® helps us understand and develop all of the areas within our infrastructure	CMMI focuses on software process maturity continuous improvement
ITIL is broader in scope and provides a framework for IT service management and operations including a hardware life cycle. ITIL is the first choice of organizations for standards related to operations and the infrastructure side of IT	CMMI is the de facto quality standard for software development, integration, deployment, and maintenance processes in organizations
ITIL addresses IT operations issues such as security, change and configuration management, capacity planning, troubleshooting, and service desk functions.	CMMI is geared specifically to software development organizations and focuses on continuous improvement
The application of CMMI helps the organization gain competency and expertise in software or product development	ITIL applications help align the entire IT process and resources of the organization to business processes
ITIL uses best practices to create well defined processes for ITSM	CMMI provides a guide for selecting processes that best fit an organization’s needs
The United Kingdom’s Office of Government Commerce (OGC) developed the IT Infrastructure Library (ITIL) in 1986 to provide guidance for service management. These set of guidelines has since then emerged as the international de facto standard framework of best practices for IT service management and infrastructure. ITIL originated as a collection of books, each covering a specific practice within the IT service management.	Carnegie Mellon University (CMU)’s Software Engineering Institute developed the first Capability Maturity Model (CMM) in 1990, and followed it up with the Capability Maturity Model Integration (CMMI) that integrated multiple CMMs.
ITIL is not prescriptive and orders the processes in sets ITIL provides solutions on how to undertake the requirement analysis.	CMMI model is not a process but a description of effective process characteristics. It recommends requirement analysis but does not specify how to do a requirement analysis.