  In this Snowmass 2013 white paper, we review the effective field theory
approach for studies of non-standard electroweak interactions in electroweak
vector boson pair and triple production and vector boson scattering. We present
an overview of the implementation of dimension six and eight operators in
MadGraph5, VBFNLO, and WHIZARD, and provide relations between the coefficients
of these higher dimensions operators used in these programs and in the
anomalous couplings approach. We perform a tuned comparison of predictions for
multi-boson processes including non-standard electroweak interactions with
MadGraph5, VBFNLO, and WHIZARD. We discuss the role of higher-order corrections
in these predictions using VBFNLO and a POWHEG BOX implementation of
higher-order QCD corrections to WWjj production. The purpose of this white
paper is to collect useful tools for the study of non-standard EW physics at
the LHC, compare them, and study the main physics issues in the relevant
processes.
