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The COOL architecture and abstractions for object-oriented distributed operating systems

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Building distributed operating systems benefits from the micro-kernel approach by allowing better support for modularization. However, we believe that we need to take this support a step further. A more modular, or object oriented approach is needed if we wish to cross the barrier of complexity that is holding back distributed operating system development. The Chorus Object Oriented Layer (COOL) is a layer built above the Chorus micro-kernel designed to extend the micro-kernel abstractions with support for object oriented systems. COOL v2, the second iteration of this layer provides generic support for clusters of objects, in a distributed virtual memory model. It is built as a layered system where the lowest layer support only clusters and the upper layers support objects.