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This question is about what a software developer does.
A development environment is a workspace environment in software development and web development in which developers can use different procedures and tools for the development, creation, testing, and debugging of a software program or website.
A development environment usually has three server tiers associated with it, these are named development, staging, and production. Combined these three tiers are normally referred to as DSP. Here is a look at the three server tiers of a development environment:
Development server
The development server is where developers and engineers test different types of code. They also check to make sure that the program or application runs optimally with the specific code they use. As soon as the program or app has been tested and the developers all agree that the code is running optimally, the project then moves on to the staging server.
Staging server
The staging server environment is created to look exactly like the production server environment. Here the app or program is tested on the staging server to make sure it is reliable and also to ensure that it will not fail on the actual production server. This represents the final phase before the app or program is put on the production server.
Production server
Once the program or app has been approved on the staging server, it is then deployed on the production server and it becomes a part of the production server.

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