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Deployment

dee-PLOY-ment /dɪˈplɔɪmənt/

nounC1

technicalformal

The action of bringing resources into effective action. (In software) The process of releasing software, an application, or a website to users, typically by installing it on servers or distributing it to devices.

Deployment is the final stage of the software development lifecycle where the software is made available for use. It can range from installing an app on a phone to launching a complex web service on cloud infrastructure.

The story behind the word. The word 'deploy' comes from the Old French 'desploier,' meaning 'to unfold, unroll, display.' It originally had military connotations, referring to arranging troops or equipment in a strategic formation. In the 20th century, it expanded to mean putting anything into effective action. In software, 'deployment' perfectly captures the idea of 'unfolding' or 'rolling out' a developed application, making it available and operational for its intended users.

Word relationships

release: Often used interchangeably, but 'release' can refer specifically to making the software available, while 'deployment' includes the technical process of getting it running.
launch: Often refers to the initial public introduction of a product, which includes marketing and other non-technical aspects.
installation: The act of setting up software on a specific machine; deployment is often a broader, managed process for many machines/users.

undeployment: The act of removing software from active service.
rollback: Reverting to a previous version of software after a problematic deployment.

Commonly confused with

Development: Development is the creation of software; deployment is making that created software available for use.

Word family

deploy (verb): To bring into effective action; to move (troops or equipment) into position for military action; to bring software into active use.

Collocations

software deployment
application deployment
cloud deployment
deployment strategy
deployment pipeline
production deployment

Example sentences

"The successful deployment of the new e-commerce platform led to a significant increase in online sales." In software development.
"The rapid deployment of troops to the disaster zone was crucial for humanitarian aid." Referring to military operations.
"Automated deployment pipelines ensure that new code changes are rolled out quickly and reliably." Discussing continuous integration.

Memory hook

Think of 'DEPLOY' as 'DE-LIVER' the software to the users, like delivering a package. Deliver Software

When not to use

Don't use 'deployment' for general installation of any software by an end-user. It typically implies the process managed by developers or IT teams to make software available to a wider audience.

Fun facts

Modern software development often uses 'Continuous Deployment' (CD), where every code change that passes automated tests is automatically deployed to production.
The complexity of deployment can vary greatly, from uploading a few files to configuring vast cloud infrastructure.