本論文探討並設計一以雲端計算為基礎之雲端計算作業系統框架。因目前雲端計算環境並無一統一之管理介面可管理雲端計算環境中之虛擬機器群且回應使用者之類似於作業系統的角色，亦無一雲端計算服務供應商可同時提供NIST之三種服務模式(CIaaS, CPaaS, CSaaS)；故本論文研究探討並分析雲端計算作業系統之功能與其必要性。
本論文首先分析於雲端計算環境中，雲端計算作業系統必須之功能性與特性，再藉著傳統作業系統管理之目的與功能來做為參考，設計一具通用性、可延展性、自主性並符合雲端運算定義且可與使用者交流並管理雲端計算環境運算資源之雲端計算作業系統框架。分析之內容並包含探討目前提供服務之知名雲端計算服務供應商，透過分析其提供之服務、運作之方式與公開之文件與本論文設計之系統做比較。
本論文以模擬測試，藉著OpenStack運作於Virtualbox虛擬環境提供CIaaS之方式，來模擬本系統框架運作之可行性。模擬結果顯示本系統框架設計於雲端環境可以做為設計與開發雲端服務之基礎，可管理雲端環境資源並提供服務。於雲端環境上開發服務，可藉本系統框架設計其雲端計算作業系統，協助管理其雲端計算環境資源並可支援NIST定義之服務模式，且具備雲端計算之特性。對於爾後雲端計算技術的發展可有進一步的擴增。

This thesis studies cloud computing and attempts to design a cloud computing operating system framework. Although cloud computing is prevailing, there appears no operating system which features the functionality of managing cloud computing environment, providing a uniform interface to control and managing the virtual machines in the environment, and interacting with users. In addition, there is no cloud computing service provider that offers the three service models, namely CIaaS, CPaaS and CSaaS, as defined by NIST. Therefore, the work of this thesis describes and analyzes the functionality and necessity of cloud computing operating system.
This thesis first analyze the important functionality and features of cloud computing environment, and then, based on traditional operating system’s functionality, designs a universal, scalable and autonomy cloud computing operating system framework which conforms the definition of cloud computing, interacts with users, as well as manages the virtual machines and resources in a cloud computing environment. The focuses of interests include user management, virtual machine management, service management, and security management.
The test of this framework was conducted by simulation through the way of using Openstack to implement a virtual environment built in Virtualbox to provide CIaaS service. It is observed from the simulation result that the system framework could be at least part of the foundation to design and to develop operating system for cloud computing services. The framework can help design, and manage virtual machine in cloud computing environment and support the service types defined by NIST. It is hoped that this framework could be of some advantage in the development of cloud computing technology.

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