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In software deployment, an environment or tier is a computer system or set of systems in which a computer program or software component is deployed and executed. In simple cases, such as developing and immediately executing a program on the same machine, there may be a single environment, but in industrial use, the development environment (where changes are originally made) and production ...
The deployment of enterprise software involves many more roles, and those roles typically change as the application progresses from the test (pre-production) to production environments. Typical roles involved in software deployments for enterprise applications may include:
The objective of Deployment Planning is to ensure that changes deployed into a target system environment are executed in a structure and repeatable manner in order to reduce the risk of failure. The purpose of release and deployment planning is to: Define and agree release and deployment plans with customers/stakeholders.
This test environment is supposedly standardized and in close alignment with the target environment. Acceptance: If the test is successful, the product is copied to an acceptance test environment. During the acceptance test, the customer will test the product in this environment to verify whether it meets their expectations.
Deployment may refer to: Military deployment, the movement of armed forces and their logistical support; Software deployment, all of the activities that make a software system available for use; System deployment, transforming a mechanical, electrical, or computer system from a packaged to an operational state
CI/CD bridges the gaps between development and operation activities and teams by enforcing automation in building, testing and deployment of applications. CI/CD services compile the incremental code changes made by developers, then link and package them into software deliverables. [ 3 ]
These traditionally assume a "clean sheet of paper", tabula rasa or "greenfield land" target environment throughout the design and implementation phases of software development. Brownfield extends such traditions by insisting that the context (local landscape) of the system being created be factored into any development exercise.
There are several formal ITIL processes that are related to release management, primarily the release and deployment management process, which "aims to plan, schedule and control the movement of releases to test and live environments", [6] and the change enablement process. [7]