In which agile phase does a programmer change goals based on customer feedback after showing the first version of a program?

The implementation phase is where a programmer takes the first version of a program and presents it to the customer for feedback. During this phase, the initial product is developed based on the specifications provided earlier. Once the customer reviews the program, their feedback can lead to the adjustment of goals and features. This iterative process is central to agile development, allowing for modifications in response to user needs and preferences, ensuring the final product effectively meets the customer's requirements. The emphasis on adaptability and responsiveness during the implementation phase exemplifies how agile methodologies prioritize customer collaboration and satisfaction.