  In this thesis we want to introduce the first steps towards realising a new
method to investigate the cosmological parameters and conduct a detailed
analysis of the galaxy cluster MACS J0416. Toward this end, we use the current
model from Grillo et al. (2015) as a template and the publicly available
lensing code Lenstool. This code has previously been used by Jauzac et al.
(2014), Richard et al. (2014), Jauzac et al. (2015) and Caminha et al. (2016)
to model MACS J0416 (Grillo et al. (2015) used GLEE). We created $10$ different
models to cover a reasonable set of different approaches. In addition to the
replication of the Grillo et al. (2015) models, with two cluster scale halos
and 175 circular cluster member mass-density profiles, we created models using
elliptical mass-density profiles for the cluster members and models where we
optimize the cluster member scaling relation slopes. In order to investigate
the viability of using the projected total mass estimate from different
cosmological models to estimate the cosmological parameter values, we created
49 models each representing a different set of cosmological parameters.
