The assignment content discusses the importance of software quality assurance, testing, and change management for the success of IT projects. It highlights that software quality assurance is not just about verifying whether the appropriate output has been generated or not, but also checking its correctness, consistency, and completeness. The benefits of software change management include planned and managed processes to minimize negative effects during project completion. The assignment also discusses different models, such as David model, which explains that quality of free software is higher compared to other projects. It emphasizes the importance of user involvement, team formation, and internal politics in ensuring the quality of software. Finally, it concludes by stating that software quality assurance mechanism can save software overruns cost if implemented well.