Efficient debugging is crucial for ensuring the reliability and functionality of software and mobile applications. Assessing bug severity measures how significantly a bug impacts an application or system, while priority determines the order in which a bug should be fixed based on its impact on users and/or the business. Severity levels are determined by assessing how severely a bug disrupts the performance or usability of software, whereas priority levels are determined by assessing how much harm a bug is likely to cause to an organization if left unaddressed. Both severity and priority scores require nuanced assessments and cannot be fully automated, but using metrics-based approaches can help improve accuracy. Effective collaboration between QA teams and developers, revising assessments as needed, and employing temporary workarounds or fixes are essential for making accurate decisions about bug prioritization.