Modelling in the documentation level using mosaic and numerical libraries

In the today's constellation of globally operating enterprises, the workforce is locally decentralized. Engineering tasks are increasingly divided up under several work groups that are situated at different premises. Information technology is used to coordinate the collaboration and to merge the results. Due to its versatility and adaptability, the cooperation on the Internet becomes increasingly important. One key issue in this development is the placement of applications in the Internet (cloud computing). Another important issue is the centralized access of cooperative results. Such centralized information may be stored in internet-based knowledge databases. With regard to the above developments, it seems to make sense to have a modelling environment working as a web application connected to a model database. Such a modelling environment should be linked to a strong numeric library. Such a library should contain reliable and very performing algorithms for solving ordinary differential equation (ODE) systems and differential and algebraic equation (DAE) systems. It should also be able to automatically recognize the sparsity and the structure of the Jacobians and to automatically select the best set of algorithms to integrate the differential system. By the help of these measures the computational time should be reduced significantly. In this contribution the MOSAIC modelling environment and the BzzMath library are presented and some main characteristics are described.