Research projects in different domains require appropriate methods and tools that suit your research question, scope, and objectives. Methods are the ways of collecting, analyzing, and interpreting data, while tools are the instruments or software that facilitate or support your methods. Depending on your domain and research question, you may use quantitative, qualitative, or mixed methods, or a combination of different methods from different domains. You may also use different tools, such as surveys, interviews, experiments, observations, simulations, models, statistics, or visualization. You should choose methods and tools that are reliable, valid, and ethical, and that can answer your research question effectively and efficiently. You should also document and justify your methods and tools, and report any limitations or challenges that you encounter.