The different stages of the survey ensure that the process meets the requirements for statistical production:
- tests carried out upstream of the collection, with 51 companies;
- stratified sampling;
- reminders and controls of data being collected;
- data cleaning;
- correction of overall non-response;
- calibration;
- correction of partial non-response.

Before any exploitation, it is also useful to assess the quality of the variables through their partial non-response rate and the confidence intervals provided in the survey's quality indicators.

Variables to be carefully analysed (non-exhaustive list):
D5_ENV_PARTCA
Response time

These are the variables with the highest rates of partial non-response (threshold arbitrarily set at 5%). These variables should be interpreted with caution since a significant portion of the responses have been imputed.

Other factors to consider include the accuracy of the estimates (confidence intervals) and whether or not to cross the variable with diffusion domains.