The business process of census mainly includes 13 links, specifically: making census plan, dividing and drawing census area, selecting and training census instructors and enumerators, compiling inventory base, implementing unit inventory, registration preparation, census registration, census data inspection, audit acceptance, quality spot check, data collection and release, census summary and evaluation, and census data archiving and management.

1. Make a census plan: In the early stage of the census, make a detailed census plan, including the objectives, contents, methods, and time arrangement of the census, so as to provide guidance and basis for the whole census work.

2. Division and drawing of census area: According to the census plan, divide the area under its jurisdiction to form census area and plot, and draw at the same time to ensure the smooth progress of census work.

3. Selection and training of census instructors and enumerators: Recruit census instructors and enumerators from the society or transfer them to relevant units for systematic and standardized training to improve their professional level and working ability.

4. Compilation of inventory copy: In order to ensure the completeness and accuracy of basic census data, it is necessary to compile inventory copy and register and sort out all kinds of census objects.

5. Implement unit inventory: The census taker conducts unit inventory according to the electronic map of the census area to understand and verify the basic situation of the unit.

6. Registration preparation: Before the registration stage, various preparations need to be made, including the allocation of the general questionnaire, the input-output survey unit library and the input-output questionnaire.

7. Census registration: According to different types of census objects, different registration methods are adopted, for example, one unit fills in the census form in the data acquisition and processing system, and the enumerators of other units use hand-held electronic terminals to conduct household surveys or the census objects fill in independently.

8. Census data check: check the registered census data to ensure the accuracy and completeness of the data.

9. Review and acceptance: Census institutions at all levels review the census data, and pay a timely return visit to verify the revised data when problems are found to ensure the accuracy and reliability of the data.

10, quality spot check: select a certain proportion of census areas for quality spot check, and check and correct census data.

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12. Summary and evaluation of the census: summarize and evaluate the census work, and analyze the authenticity and accuracy of the census data, so as to provide reference for the future census work.

13. Archive and management of census data: archive and manage all kinds of data generated in the census process to provide reference for future census work.

Characteristics of census business:

1, comprehensiveness: Census is a comprehensive survey of all designated objects in a country or region, covering all target individuals, which makes census data highly representative and can be used to describe overall characteristics and trends.

2. One-time or periodic: The census is usually a one-time or periodic activity, such as the decennial census. This regular development mode makes the census results can be used as a benchmark to compare the changes in different periods.

3. Standardized operation: The census usually sets a unified standard time point, time limit, items and indicators to ensure the consistency and comparability of the data collection process. This method is helpful to improve the accuracy and reliability of data.

4. Resource-intensive: Census usually needs to invest a lot of manpower, material resources and time, especially large-scale census projects, such as the national census, which need to mobilize thousands of staff to collect and process data. Therefore, the cost of census is relatively high, which is not suitable for frequent conduct.