This is a type of training tool use with the aim of uplifting critical thinking based on critical reading and critical writing. Business school use case study research methodology for their students to analyses the cases and to generate feasible solutions. This research strategy for investigating the phenomenon with in real life context.
Case studies contain details related to single person, group or event. But this is more advance than a simple testimonial. Simultaneously apply quantitative and qualitative methodologies, historical data use as evidences with real numbers. So case studies provide approach to descriptive and exploratory analysis, to result interpretation and to present solutions.