Focuing on the main business rules for the feature and the main and happy scenarios will be the most and all you need to make sure that's working as expected. Alligning with the stalkholders that the testing process will include only the related testcases for this to be conducted within the available timeframe.

When swamped with test cases and tight deadlines then effectively prioritizing tasks is essential. Begin by identifying high risk areas of the application such as critical functionalities or features most used by customers. Focus on test cases that cover these key areas, ensuring they receive adequate attention. Leverage historical data or defect trends to prioritize tests based on their likelihood of catching issues. Additionally automate repetitive, lower priority tasks to save time and streamline processes. Communicate clearly with stakeholders about which areas will receive the most focus and why. By balancing risk, impact and efficiency you can meet deadlines without sacrificing quality.

In tight deadlines, I prioritize testing through a risk-based approach, focusing on high-impact and critical functionalities first. I consider the complexity of test cases and prioritize those covering the most code paths. Collaboration with the development team helps me identify areas where recent changes are likely to introduce defects. I also rely on historical data to predict problem areas and ensure alignment with business goals through continuous communication with stakeholders. This approach helps me stay focused on what matters most to the project and users.

When facing a heavy workload of test cases & tight deadlines, leveraging historical data becomes crucial for effective prioritization. By analyzing past issues & defects, testers can identify areas of the software that are historically problematic. This predictive approach helps to focus efforts on high-risk components that are more likely to fail, ensuring that critical functions are tested first. Also, aligning the prioritization with business objectives allows testers to concentrate on features that are most valuable to users, optimizing resource allocation. By combining historical insights with business priorities, software testers can enhance test efficiency & ensure that the most significant risks are mitigated under time constraints.