Moving appropriate data to a network level data with basic enquiry and update Web services is a first step in re-engineering library systems. In fact it is not only the ILS that needs re-engineering, but also the newer solutions that, like the ILS, have created silos of data, often locked inside proprietary systems and databases. It is important for libraries to own and control their data resources; to be free to share them, provide access to them and to expose the data. It is less important that the libraries own or run the software that manipulates and manages the data.