s Yin 也提到案例研究可以依赖于许多来源
Yin (2009), also mention that all handle with the technically in Case Study, characteristic situation where there will be a lot of variables of interest field than data points , and as one result. Case study also relies on multiple sources of proof, with data needing to converge in a triangulation as a result. The case study also give benefits to prior development of theoretical propositions to guide data collection and analysis
Yin也提到，在案例研究中，所有的处理都是技术性的，在这种情况下，除了数据点之外，还会有很多感兴趣的变量，并且作为一个结果。案例研究还依赖于多种证据来源，因此数据需要在三角剖分中收敛。该案例研究也有助于事先发展理论命题，以指导数据收集和分析
