One of the techniques used in social research is interviewing.
In social research the researcher finds the individuals who want to study in real life keeping in mind the objectives of the research, gathers information or tries to ask questions.
The researcher met the respondent face to face, asked questions, collected information and interviewed.
In a visitor's application, the informant who learns face-to-face or in person at a designated place or place of residence, workplace or any other pre-determined place and time is called an 'interview application'.
According to Mr. Good and Hutt, visiting is a kind of social process.
According to Shinpao Yang, "interviewing is a method of work that is used to observe a person or persons' yearbooks, take notes on their statements, and observe the actual results of social group interactions."
There are two parties to the interview.
In a visitor $($researcher$)$ and another visitor $($informant or respondent$)$ interview, the researcher meets the respondent in person regarding his / her research or problem.
In this sense, an interview is a verbal exchange between the researcher and the informant.
Thus the visitor obtains information using two methods.
$(1)$ Visit Schedule $(2)$ Visit Guide
$(1)$ Visit Schedule:
A detailed list of questions in pursuit of a research question is an interview schedule.
The visit schedule is a list of pre-arranged sequences of research problems.
When the researcher visits the respondent, he / she asks the respondent a series of face to face questions.
The answer given by the respondent is recorded in the information sheet.
When the learner goes to the informant and asks questions and notes his answer in the pre-arranged visit schedule at the same time it is called visit schedule.
$(2)$ Visit Guide:
According to Dennis and Stephen, the 'visit guide' is a guide that outlines the type of information needed.
It is not made up of fixed questions.
But there is a list showing the details of what information is needed.
Keeping that list in mind the visitor asks the informant questions and collects the required information.
The learner uses a list of questions or guiding topics decided during the visit.
This list of guided topics is called 'Visit Guide'.
The interviewer taps the informant's answers into a tape recorder or memorizes them by himself.
The learner also collects information from the informants by telephone or e-mail at his convenience.