Production environment is a term used mostly by developers to describe the setting where software and other products are actually put into operation for their intended uses by end users.
A production environment can be thought of as a real-time setting where programs are run and hardware setups are installed and relied on for organization or commercial daily operations.
One way to define a production environment is by contrasting it with a testing environment.
In a testing environment, a product is still being used theoretically. Users, typically engineers, look for bugs or design flaws.
In the production environment, the product has been delivered and needs to work flawlessly.
A related term, production code, refers to code that is being used by end users in a real-time situation, or code that is useful for end-user operations.
A debate over what constitutes production code shows that there is a lot of ambiguity about the formal application of either term to a specific scenario because of the many stages that code and tech products go through in their respective life cycles.