In the software development life cycle, acceptance testing is performed before user acknowledgment testing to investigate the correctness of the software. Deployment ensures the software implementation at the client site location once all bugs are fixed and testing stages are complete. Feedback from clients provides actual outcomes and suggestions for improvement. Issues in professional, legal, social, security, and ethical aspects of software development include improper understanding of requirements, poor code design, lack of quality assurance, and inadequate testing. The conclusion is that the designed software meets customer needs with zero defects, having undergone various testing principles and levels.
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