Abstract: Systems and methods to provide network based calculations for planning and decision support tasks are provided. In example embodiments, a trigger to perform a calculation directed to a single process is received. The single process comprises an end-to-end process that combines a plurality of applications. A planning function that models the single process is provided to an engine within memory. Based on the planning function, data from within the memory that receives the planning function is retrieved. The retrieved data is used in the calculation. The planning function and retrieved data are provided to a coupled library of algorithms for performing the calculation. The calculation is then performed within the library in the memory using the planning function and the retrieved data.