An Object-Oriented, Dynamically Adaptable, Virtual File System for CHEOPS

This paper presents some of the recent results and experiences of the CHEOPS 1 research project. It deals with the aspect of the object-oriented (re)design of a traditional operating system component, a virtual le system. To be able to integrate and remove specic le system implementations at runtime the CHEOPS class-object architecture is used. The paper demonstrates the usage of that architecture and shows, how an high degree of reuseability and ne adaptation granularity can be reached by applying it. 1 Introduction Adaptability and exibility become more and more important for today's operating system kernels. Therefore, during the last years, the main focus of our research activities was directed to the development of suitable operating system structures to improve the adaptability of the system kernel. One result is the design of the class-object architecture. That architecture has been implemented in our experimental operating system kernel (the CHEOPS kernel) and it..