ECSS Applicability Requirement Matrix (EARM)

The EARM is the file that can be used by projects for tailoring. The EARM files are Microsoft Excel files exported from the ECSS DOORS database containing all Requirements, Recommendations and Permissions of the respective ECSS Standard.

The complete Export of the EARM from the ECSS DOORS database v.0.9 (5 October 2022) can be downloaded from the link below.

NOTE: Version 2, dated 21 February 2023, contains one correction. For details see change log in the Excel file.


The Excel file contains all ECSS Standards (Active and Superseded) where DOORS modules have been created for. A filter is available in the Excel file to view Active and Superseded Standards.

The Excel file (“… _incl. Statistics) contains several Pivot tables showing some statistics about the number of Requirements, Recommendations and Permissions.



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Corrrected version of EARM of DOORS v.0.9:


Previous versions: