The challenge of using DTAP in your Dynamics CRM deployment process
When planning a new Microsoft Dynamics CRM solution, one of the first decisions a solution architect needs to make is around the setup of the right combination of development, test, and production environments to ensure the delivery of a system that works as expected.
In the enterprise segment, it is common to use the so-called 'DTAP' model, which is short for development, test, acceptance and production, and requires managing multiple environments during an implementation.
The development environment is strictly for building your application. Common tasks here involve customizations like front- and back-end coding.
The test environment is the place where (preferably) a dedicated tester checks whether the functionality is built according to your requirements.