Abstract

This paper summarizes the analysis, design, implementation, and performance analysis of an object-oriented operating system. The analysis applies Use Case Maps (UCMs) to provide a high-level abstraction of the behavior scenarios for state transition, character output, network access, and disk access. The UCM for state transitions is converted into a queueing network for simulation study of I/O-bound versus CPU-bound systems. An overview of the later stages emphasizes UML for architecture and detailed collaboration, as well as Java examples. The performance of the disk subsystem is analyzed by instrumenting the Java code, and the results show that design choices can affect the throughput.

-- Daniel Amyot - 09 Aug 2006

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