The logistics system developed at PTA is an application suite consisting of a home module and various satellite applications (supplier module, site module, subcontractor module, other modules in the conceptual stage or implemented as a prototype). The application suite is designed and implemented as a decentralized solution. Each partial application forms an independent desktop application with dedicated data storage. The satellite applications are provided on site to the suppliers and construction sites in the form of a local installation. The application is based on C#.Net. Data is stored centrally with an Oracle database. MS Access is used in the decentralized modules.