The data sources used and processing are homogeneous throughout the geographical area (France excluding Mayotte).

Each Flores file presents two years N-1 and N whose comparability is guaranteed (homogeneous sources and methodology). On the other hand, comparability between two years from two different vintages is not guaranteed. Indeed, changes in the source data used or improvements in their statistical treatment may occur between the different vintages and disturb the comparability of the data. As a result of these changes, the data for year N-1 are generally not identical to those for year N of the previous vintage. 

Flores' results are consistent, but not identical, with the results of other comparable sources: "All employees databases", "SIASP" file and Annual Employment Estimates.

Observable differences are mainly due to differences in statistical concepts. In particular :

• the Employment Estimates count the number of persons in employment, whereas Flores counts "positions". Some people may occupy several positions (multiactivity), which leads to differences in level and evolution between these aggregates.

• The data in Flores are very close to those in the "All employees databases" and SIASP. They may differ from them from time to time due to corrections designed to improve the geographical location of employment in Flores.