Arman Process Journal (APJ)

Abstract Basically, the foundation of every scientific society is based on research and research is actually the driver of progress and sustainable development of today's information-oriented societies. Statistical researches are generally carried out in two ways: quantitative and qualitative. Knowing the types of research methods and the characteristics of each of them, as well as understanding the difference between quantitative research and qualitative research, helps the researcher to choose the right and appropriate research method. Qualitative research is a research that is based on non-numerical and experimental, physical and exploratory analyzes to understand concepts, opinions, thoughts and experiences in a completely natural and real context. Qualitative researches use different software infrastructures to analyze information. Understanding these software infrastructures leads to greater success and development of research achievements. According to the necessity of the research, in this article we examine the most important software infrastructures in qualitative analysis research.

Abstract Statistics deals with the collection, analysis, and use of data to solve problems. All people, both in specialized fields and in everyday life, come across information in the form of numbers or data through contact with the press, radio, television and other mass media. So some understanding of statistics will be useful for everyone. Because engineers, scientists, and administrators are constantly involved in data collection and analysis, statistical knowledge is essential for these disciplines. Experimental and observational studies The general purpose of a statistical research project is to investigate random events, and in particular to draw conclusions about the effect of changes in the value of indicators or independent variables on a response or dependent variable. There are two main methods of random statistical studies: experimental studies and observational studies. In both types of studies, the effect of changes in a non-dependent variable (or variables) on the behavior of dependent variables is observed. The difference between the two methods is in how the study is actually conducted.
In human subject research, a survey is a list of questions that aims to extract specific data from a specific group of people. Surveys may be conducted by telephone, post, Internet, as well as on street corners or shopping malls. Statistics are used to gather or gain knowledge in areas such as social research and demography. Once the data have been collected, either by a specific sampling method or by recording responses to behaviors in an experimental set (experimental design) or by repeatedly observing a process over time (time series), graphical or numerical summaries can be made. Use of descriptive statistics achieved.