Egis Pharmaceuticals PLC, Budapest, Hungary, developed a chemical database for 20 years based on at first MDL's ChemBase then later ISIS/Base. The database included both chemical and biological data and served Egis' chemistry and biological community of 74 users. With emerging internal demand for a change ChemAxon's JChem platform and ComCix’s integration and workflow framework were selected as the next generation integrated solution.

During the project we faced usual and expected difficulties but also some unforeseen challenges caused by for instance the different project management methods of the two companies or heterogeneous data sources requiring major data clean up processes, and most importantly the acceptance of the new system by the user community that was accustomed to their legacy system.

In our joint presentation we are going to show some of these challenges from two different aspects: one from the costumer and the other from the integration provider.

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