Have you heard of alpha testing?

Yes, I am familiar with the concept of alpha testing.

It is a type of acceptance testing conducted before the release of a software product, usually by the internal team of testers or developers, and sometimes by representatives of the customer. It takes place in a simulated or real operational environment.

The goal is to identify as many defects as possible early in the development process before handing over the product to external beta testers or end users.

Characteristics of alpha testing:

• Conducted within the development company.
• Focuses on finding errors, failures, missed functions.
• May include both "white box" and "black box" testing.
• Allows defects to be identified early, reducing the cost of fixing them.
• The result is a report on the defects found, which the development team fixes.