The results of ATLAS and CMS beyond the Standard Model searches are
very useful to constrain various new physics modes, yet they are
originally designed to search for a particular model. Recasting
existing analyses on to an arbitrary model involves various subtleties
and one has to simulate detector responses and selection cuts as
realistic as possible. For this task, we developed two programs: ATOM
(Automated Testing Of Models) and Fastlim. ATOM takes event files as
inputs and calculates the efficiencies of various analyses
automatically, which can be used to calculate an exclusion p-value for
an given model. Fastlim, on the other hand, takes spectrum files as
inputs and immediately calculates an exclusion p-value using
pre-calculated efficiencies of various simplified topologies. In this
talk, I review the recent development of the attempt of recasting
ATLAS and CMS searches on to general new physics models. I also
discuss the methodology used and present performances of ATOM and
Fastlim.