A case study is a research method used to investigate an individual, group, or situation in-depth. It gathers data through various sources and analyzes it to gain insights of the subject. Below are some characteristics of case studies:

1. In-depth investigation: Not only collecting data and generally analyzing it, case studies involve a detailed and thorough investigation using multiple sources of data in order to give out a detailed report of recommendations.
2. Real-world context: Case studies are conducted based on real-world contexts, providing an opportunity to examine how the subject of the study operates in a practical setting.
3. Qualitative data: Case studies often rely on collecting and analyzing qualitative data through various methods, such as interviews, observations, and documents, to gain a rich understanding of the subject of the study. While quantitative studies give researchers exact and overall ideas of what the data is about, qualitative researches give them an in-depth understanding of why and how we get that data.
4. Analytical approach: Case studies involve an analytical approach to data analysis, using various frameworks and models to interpret the data.

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In conclusion, case studies are a research method used to investigate a subject in-depth, and they involve gathering and analyzing qualitative data in a real-world context. Freelance case study services can be found on papmall®, providing clients with access to skilled professionals who can conduct case studies for various purposes.