Discipline metrics

  Methodology and Legend


The workflow to retrieve the list of users consists of the following steps:

1. The VO managers use the Operations Portal to record VO information in the VO ID cards
2. The information related to VOMS servers is registered in the Operations Portal VO database and made available to the Lavoisier Web Service
3. Lavoisier builds the VOMS contact URL list from the data
4. Lavoisier contacts the VOMSes via a SOAP method and retrieves the list of registered users certificate DNs for each VO
5. The users list is recorded in the CIC database and a cache is also kept in Lavoisier
6. The records are aggregated and sorted to expose consistent VO user statistics on the Web Interface.

If the VOMS server is not reachable the Web Service is not able to retrieve the list of users .

User accounting

- we count the number of unique CN and VO group by disciplines or sub-disciplines
- consequently a user represented by a CN could be reported several times
- consequently a VO could be reported several times in different disciplines
- consequently the sum of the users group by disciplines is not corresponding to the total of users

Nb Vo Number of VOs in this specific discipline and sub-disciplines
Nb Users Number of users in the discipline and related sub-disciplines

CSV Discipline Nb VO Nb Users
Accelerator physics 5 6492
Acoustics 0 N.A
Aerosol physics 0 N.A
Astrobiology 0 N.A
Astronomy 30 1659
Astroparticle physics 15 996
Astrophysics 33 8050
Atomic 0 N.A
Chemical physics 1 23
Computational physics 1 27
Condensed matter physics 0 N.A
Cryogenics 0 N.A
Fluid Mechanics 0 N.A
Fusion 1 1
High energy physics 57 21181
Mathematical physics 0 N.A
Medical physics 1 23
Molecular physics 0 N.A
Nuclear physics 12 2004
Optics 3 9
Particle physics 49 16299
Physics 78 16273
Planetary science 1 N.A
Plasma physics 3 6
Space science 29 1668
Quantum physics 1 23