Acceptance Testing - Alpha Testing

The ALPHA test is usually performed by end users inside the developing company but outside the development organization. The first step in implementing ALPHA Testing is to define the primary objective of the test: progressive testing, and/or regressive testing. Progressive testing is the process of testing new code to determine whether it contains errors. Regressive testing is the process of testing a program to determine whether a change has introduced errors (regressions) in the unchanged code.
ALPHA Testing requires careful selection of the Users.