Nowadays the operators of fresh and sewage water networks are facing growing operational tasks. The bad state of fresh water networks can result in an undersupply of consumers or can have tremendous environmental and financial impacts. These organizations find themselves in a conflict between providing the best performance of their assets and economic pressure. For accurate decisions during the operation and maintenance of these network assets a comprehensive view on the assets is needed. Normally different departments are working on the same assets according their operational tasks. These departments are supported by different software applications based on different databases. This fragmented data structure often leads to inefficient workflows and avoids adequate decision making. The benefits of a holistic asset information management system can be summarized to the following aspects. This holistic approach ensures access for all stakeholders within one organization which facilitates the cooperation between the departments involved. All data with their most recent modifications are available in real time for all parties involved. This enhances the communication between all stakeholders. In addition all data are available to conduct powerful analyses. The latter helps to derive better decisions for the operation and maintenance of the different network assets. While a complete system which covers all needs of the asset owner is still utopia, current software applications are wide advanced. With BaSYS, which follows such a holistic comprehensive approach, a software suite is available which covers nearly all aspects of the lifecycle of a network asset. In combination with a variety of data exchange interfaces it facilitates the internal and external data management and improves the processes of a network owner.