MINUIT is a physics analysis tool for function minimization. The functions (so-called objective functions, can be chisquare, likelihood or user defined) are provided by the user. MINUIT contains several tools for minimizing a function and for special error analysis. MINUIT was initially written in Fortran about 25 years ago at CERN by Fred James. Its main field of usage is statistical data analysis of experimental data recorded at CERN, but it is also used by people outside high energy physics (HEP). This project aims to re-implement MINUIT in an object-oriented way using C++.