Topic summary
Alpha test

Extracted from the Wikipedia article Software release life cycle.
Pre-alpha refers to the early stages of development, when the software is still being designed and built. Alpha testing is the first phase of formal testing, during which the software is tested internally using white-box techniques. Beta testing is the next phase, in which the software is tested by a larger group of users, typically outside the organization that developed it. The beta phase is focused on reducing impacts on users and may include usability testing.