格網計算(Grid Computing)環境是透過網路將分散在各地的各種資源(如處理器、儲存設備)匯整起來，並形成一擁有強大計算資源的虛擬超級電腦，使用者可經由此環境來解決ㄧ些需大量計算資源的問題。目前最常被用來建置格網計算環境的中介軟體為Globus Toolkit，它提供了各種應用程式介面(APIs)來讓使用者開發格網相容的應用程式。但是由於此軟體所提供的應用程式介面仍不夠友善，因此無格網概念的使用者在使用上將會感到困難重重。
本論文建置了一個以Globus Toolkit為基礎的格網計算環境，並於其上發展了一組Java函式庫來讓無格網概念的使用者可以較容易的去開發格網相容之應用程式。為了讓使用者在此環境中尋找符合各種工作需求之資源，以提交並執行工作，本研究透過所開發之函式庫設計了一個資源仲介者模組來提供系統上各資源之整合。此外，本研究也開發了數個格網相容之應用程式來測試所建立之系統的可用性，這些程式包括需行程間通訊的應用與不需行程間通訊的視覺化協同會議應用。實驗結果顯示所建置之系統可以透過資源仲介模組來做資源配置功能，以縮短處理時間，達到良好的效能。

Grid computing is an emerging computing technology for solving complex computational problems which uses the resources (e.g. processor cycles, disk storage) of many separated computers connected by network to model virtual computer architecture. Globus Toolkit is the most popular middleware for building a grid computing environment, but the APIs of Globus Toolkit are not user-friendly enough for the user who lacks of grid concept.
In this thesis a Globus-Based grid computing environment was built. In order to provide an easy way to use the built computing environment, a Java based library and resource broker module were designed. The resource broker is used to collect all the available resources of the computing environment for submitting jobs to run on the system. Several application programs were developed based on the designed environment for evaluating the performance of the designed computing system. The experimental results showed that the built grid computing environment can support applications such as Inter-Process Communication applications and collaborative visualization conference application.

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