This document discusses qualitative research methods. It defines qualitative research as exploring issues to understand phenomena through unstructured sources like interviews rather than statistics. Some key characteristics of qualitative research are that it seeks to understand people's perspectives in natural settings, is value-bound, and aims for a holistic picture through discovery rather than testing hypotheses. Case studies are described as an in-depth analysis of a single case to understand its complexity. Triangulation is introduced as using multiple research strategies or data sources to confirm findings and reduce errors.