The evolutionary testing model (Gelperin and Hetzel) has served as a foundation for historical level differentiation in the TMMi. The evolutionary testing model describes a number of test phases. Which of the following phases of the evolutionary testing model is closely aligned with TMMi model level 1 Initial?

The debugging-oriented phase of the evolutionary testing model aligns closely with TMMi Level 1 (Initial). At TMMi Level 1, testing is often chaotic and is not formally separated from debugging. The primary focus is on finding and fixing bugs, which reflects the characteristics of the debugging- oriented phase described in the Gelperin and Hetzel evolutionary testing model. Testing at this level lacks structure and is mainly an ad hoc activity aimed at removing defects from the software.
Reference: "TMMi Level 1 corresponds to the debugging-oriented phase of the evolutionary testing model where testing and debugging are interleaved"​​.