Beside that, Yin (2002) defines the case study research method “as an empirical study that investigates a contemporary phenomenon within its real-life context which is when the boundaries between phenomenon and context are not clearly evident; and in which multiple sources of evidence are used. Besides that he is also mention that a a design of the case study should be considered when first is the focus of the study is to answer “how” and “why” questions; second, the reseacrher cannot manipulate the behavior of those involved in the study; third, the reseacrher want to cover contextual conditions because you believe they are relevant to the phenomenon under study; or fourth, the limitations are not clear between the phenomenon and context. Other than that, Zaidah (2007) also stated that the past literature show the application of the case study research and method in many areas and disciplines in all types of media.
除此之外,，Yin定义了案例研究方法“作为一项实证研究，在现实生活背景下调查当代现象，即现象和背景之间的界限不明显；并且使用了多种证据来源。此外，他还提到，当第一个是研究的重点时，应考虑案例研究的设计。”本研究旨在回答“如何”和“为什么”的问题；其次，研究者不能操纵参与研究者的行为；第三，研究者希望涵盖背景条件，因为你认为它们与所研究的现象相关；第四，这种现象与语境之间的局限性不明显。除此之外，Zaidah还指出，过去的文献表明案例研究和方法在所有类型的媒体的许多领域和学科中的应用。Category of the case study 案例研究的类别
The category of the case study are being categories by three, first is exploratory, descriptive and explanatory case studies. The exploratory case study can be explain as case studies set to explore any phenomenon in the data which serves as a point of interest to the researcher. For an example, a researcher conducting the exploratory a case study and the case study include the all data collection, research question and etc.
案例研究的类别分为三类，第一类是探索性、描述性和解释性案例研究。探索性案例研究可以解释为案例研究，用于探索作为研究者兴趣点的数据中的任何现象。例如，研究人员进行探索性案例研究，案例研究包括所有数据收集、研究问题等。
The second category is descriptive case studies. This category of this case study explains about natural phenomena which happen within the data in question. For an example, the question like what different strategies use. The descriptive case studies may use in the narrative form like using the pattern matching procedure and so on.
第二类是描述性案例研究。这类案例研究解释了相关数据中发生的自然现象。例如，问题是不同的策略使用什么。描述性案例研究可以采用叙事形式，如使用模式匹配程序等。
The third category is explanatory case studies. This examine the data deeply in level to explain the phenomena of the data in order. The explanatory case studies investigate the complex and multivariate cases. This complex theory explain the three theories of the phenomenon and study.
第三类是解释性案例研究。本文对数据进行了深入的层次性考察，对数据现象进行了有序的解释。解释性案例研究调查复杂和多变量的案例。这一复杂理论解释了现象和研究的三种理论。
Case study is one of the offers an opportunity to study of the particular subject. For n example, the case study can do the research at organization , the target group of people which usually involves collect, gathering and analyzing the data and information. And the information can be gets from qualitative or quantitative.
案例研究是提供研究特定主题的机会之一。例如，案例研究可以在组织（目标人群）进行研究，通常包括收集、收集和分析数据和信息。信息可以是定性的，也可以是定量的。
Basic types of the case study design. 案例研究设计的基本类型。
Figure 1 : Types of Case Study 图1：案例研究的类型
Strength and Weakness of the Case Study 案例研究的优势和劣势Weaknesses 劣势
Case studies include and involve the small sets of data for an example as one or two companies. that may conduct the researcher to get and gain some insights about the trends or viral in the relevant industries. For example, the case study about the Honda Company might be used to generalize about similar companies in the automobile industries. The data or information is a reasonable to the company that chosen as a source of data. But the case studies involve small data and so that conversational empirical techniques cannot be used or where they are used.
案例研究包括并涉及一家或两家公司的小数据集。这可能会引导研究人员了解相关行业的趋势或病毒。例如，关于本田公司的案例研究可以用来概括汽车行业中的类似公司。该数据或信息对选择作为数据来源的公司来说是合理的。但案例研究涉及的数据很少，因此无法使用会话经验技巧或在何处使用。
Strengths. 优势
The case study method involves detailed, holistic , futuristic investigation in all aspects and can utilize a range of different measurement techniques such as a methodological tool. The da
