Preparation: This is a very important stage in the process of the investigation so thorough preparation before conducting what should be investing much effort. This phase includes:-Prepare before contact with the customer: understanding the content, the requirements of the investigation; hone the communication skills, interview skills (the initial contact, ask questions, take notes, answer polls...)-Preparing the document, the tool needed to conduct the interview.In progress:-The intended location To interview (the inhabitants of the region, Tu Liem district, Ha Noi City) on: • Evening (19 hours-21 hours) the day from Monday to Friday.• All day Saturday and Sunday.-The interview exposed subjects to interview. If the audience is asked to agree to the interview, then played them 1 bald table and conduct interviews. Interview time should only last about 10-15 minutes.-Thank people asked when finished.Data processingThe data processing is conducted according to the following sequence: 1Reviews the data value: to ensure data was collected properly, objectively and in accordance with the original design.Editing data: complete test, consistency, clarity of the data to the data available for the coding and data processing.
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