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Traditional requirements for persistence layers do not consider limitations of the development platforms available for mobile devices. In order to facilitate the development of applications, which need to store data, for mobile devices, these traditional requirements are reevaluated in this paper and a framework for object persistence is proposed. This framework, called FramePersist, is constructed based on the concept of object serialization and allows to persist and to search objects efficiently. Mapping rules of objects for persistence are presented together with a case study using the Symbian OS native file systems.