During which phase is the process solution subjected to final acceptance testing?

The process solution undergoes final acceptance testing during the third phase. This phase is crucial as it marks the point where the solution is thoroughly tested to ensure it meets the specified requirements and functions correctly within the intended environment. Final acceptance testing typically involves stakeholders and reflects the confirmation that the developed process is ready for deployment, adhering to both quality and performance standards.

During this phase, testers assess various scenarios to validate the process solution against user expectations and business requirements. The successful completion of this testing phase signifies that the process is functional and meets the necessary criteria to be deployed into a live environment, ultimately leading to user satisfaction and operational readiness. On the other hand, earlier phases are focused on development, initial testing, and enhancements rather than final evaluation, making them less suitable for acceptance testing.