  We consider the Higgs boson decay processes and its production including all
Run I results, through a parametrisation tailored for testing models of new
physics beyond the Standard Model, and complementary to the one used by the LHC
working groups. Different formalisms allow to best address different aspects of
the Higgs boson physics. The choice of a particular parametrisation depends on
a non-obvious balance of quantity and quality of the available experimental
data, envisaged purpose for the parametrisation and degree of model
independence, importance of the radiative corrections, and scale at which new
particles appear explicitly in the physical spectrum.
  The most refined constraints can only be obtained by the experimental
collaborations at present, as information about correlation between the various
uncertainties on the different decay modes is not completely available in the
public domain. It is therefore important that different approaches are
considered and that the most detailed information is made available to allow
testing the different aspects of the Higgs boson physics and the possible hints
of physics beyond the Standard Model.
