As an MIS researcher, you are entering a field that bridges technology, business, and human behavior. "Doing science" in MIS means applying rigorous methodologies to understand how information systems can solve real-world problems, improve organizational effectiveness, and create value for society.
Your thesis proposal is not just an academic exercise—it's your blueprint for contributing new knowledge to the field. Writing a thesis proposal is recognized as one of the most difficult things a student does in graduate school, as students typically have no experience in writing proposals or even in conceiving of thesis-sized research programs.
Focus on emerging areas where you can make novel contributions. The field is rapidly evolving, and your research should address tomorrow's challenges, not yesterday's solved problems.