The purpose of this work is to create a model that would allow structuring complex humanitarian data and would allow scientists to process them. Modeling of a Siberian integrated system designed for storing and processing primary and research data. The requirements for the system for its further design are being formed. A relational database model based on UML notation is being created to store complex humanitarian primary and research data. A preliminary study revealed the need to separate user access using rules and API connections. A mathematical model of an integrated system of information objects is proposed, which provides identification and formalization of dependencies between objects and systems adequately describes the intersystem features of information systems. In the future, this can solve the problem of storing complex humanitarian data and providing multi-user access for the purpose of processing scientific information, as well as obtaining consistent integrated information using data exchange and updating mechanisms.