Project management information systems support the complex project management process. This process is regulated by project management methodologies, standards and other requirements. To support this process is necessary that project management information system could be configured according the requirements of chosen methodology. To facilitate the configuration process project management requirements are described and defined in a standardized manner using XML. The objective of this paper is to elaborate structure of the aforementioned schema, which is referred as XML schema for Configuration of Project Management information systems (XCPM). Development of the XML schema is based on the comprehensive project management concept model. Each entity form project management concept model can be described using XCPM schema. This paper also surveys project management information system configuration approach and project management concept model. Project management information system configuration process is provided as example of schema usage.