What can we learn from Higgs coupling measurments?

With the discovery of the Higgs boson, the important task becomes understanding the Higgs properties and in particular the couplings to fermions and gauge bosons. The measurement of these couplings can be used to probe possible new physics at high energy scales. I will discuss the uncertainties on the theoretical predictions of Higgs couplings and the interpretation of these measurements in terms of models with extended Higgs sectors or with other new heavy particles.