Browse Definitions :
Definition

CALMS

Contributor(s): Ivy Wigmore

CALMS is a conceptual framework for the integration of development and operations (DevOps) teams, functions and systems within an organization. The CALMS framework is often used as a maturity model, helping managers to evaluate whether or not their organization is ready for DevOps -- and if not, what needs to change. The acronym CALMS is credited to Jez Humble, co-author of "The DevOps Handbook."

The five pillars of the CALMS framework for DevOps are:

Culture - there is a culture of shared responsibility.

Automation -  team members seek out ways to automate as many tasks as possible and are comfortable with the idea of continuous delivery.

Lean - team members are able to visualize work in progress (WIP), limit batch sizes and manage queue lengths. 

Measurement - data is collected on everything and there are mechanisms in place that provide visibility into all systems.

Sharing - there are user-friendly communication channels that encourage ongoing communication between development and operations.

The CALMS framework is sometimes considered an alternative to ITSM (Information Technology Service Management), a strategic approach to designing, delivering, managing and improving the way IT is used within an organization. ITSM, which is often associated with ITIL (Information Technology Infrastructure Library) is considered by some IT administrators to be too rigid and therefore incompatible with DevOps. CALMS is sometimes thought of as a way of negotiating the differences between the two approaches.

This was last updated in September 2017

Continue Reading About CALMS

Start the conversation

Send me notifications when other members comment.

Please create a username to comment.

-ADS BY GOOGLE

File Extensions and File Formats

Powered by:

SearchCompliance

  • Whistleblower Protection Act

    The Whistleblower Protection Act of 1989 is a law that protects federal government employees in the United States from ...

  • smart contract

    A smart contract, also known as a cryptocontract, is a computer program that directly controls the transfer of digital currencies...

  • risk map (risk heat map)

    A risk map, also known as a risk heat map, is a data visualization tool for communicating specific risks an organization faces. A...

SearchSecurity

  • certificate authority (CA)

    A certificate authority (CA) is a trusted entity that issues digital certificates, which are data files used to cryptographically...

  • hacktivism

    Hacktivism is the act of hacking, or breaking into a computer system, for a politically or socially motivated purpose.

  • advanced persistent threat (APT)

    An advanced persistent threat (APT) is a prolonged and targeted cyberattack in which an intruder gains access to a network and ...

SearchHealthIT

  • Cerner Corp.

    Cerner Corp. is a public company in North Kansas City, Mo., that provides various health information technologies, ranging from ...

  • clinical decision support system (CDSS)

    A clinical decision support system (CDSS) is an application that analyzes data to help healthcare providers make decisions and ...

  • Health IT (health information technology)

    Health IT (health information technology) is the area of IT involving the design, development, creation, use and maintenance of ...

SearchDisasterRecovery

  • tabletop exercise (TTX)

    A tabletop exercise (TTX) is a disaster preparedness activity that takes participants through the process of dealing with a ...

  • risk mitigation

    Risk mitigation is a strategy to prepare for and lessen the effects of threats faced by a data center.

  • ransomware recovery

    Ransomware recovery is the process of resuming options following a cyberattack that demands payment in exchange for unlocking ...

SearchStorage

  • SSD (solid-state drive)

    An SSD (solid-state drive) is a type of nonvolatile storage media that stores persistent data on solid-state flash memory.

  • file system

    In a computer, a file system -- sometimes written filesystem -- is the way in which files are named and where they are placed ...

  • storage virtualization

    Storage virtualization is the pooling of physical storage from multiple storage devices into what appears to be a single storage ...

Close