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系統編號:

094MCU05396006

出版年:

研究生:

陳建霖

研究生(英文姓名):

Chien-Lin Chen

論文名稱:

從元件規格到實際元件實施之對映研究：一個基於非同步訊息呼叫的方法

英文論文名稱:

Research for mappings from component specifications to component implementations：an approach based asynchronous message call

指導教授:

林至中

指導教授(英文姓名):

作者未提供

學位類別:

碩士

校院名稱:

銘傳大學　

系所名稱:

資訊管理學系碩士班

學年度:

語文別:

中文

論文頁數:

111

關鍵詞:

EJB(Enterprise Java Beans) ; UML Components ; 非同步訊息 ; 對映 ; 元件規格 ; 實作 ; 元件式軟體工程

英文關鍵詞:

component specifications ; mapping ;
implementation ; asynchronous message ;
UML Components ; EJB(Enterprise Java Beans) ;
Component-based Software Engineering

被引用次數:

[ 摘要 ]

　　元件式軟體工程(Component-based Software Engineering)已逐漸取代傳統的軟體工程，成為發展企業軟體的新一代軟體工程典範。它有著組合(Composition)及重用(reuse)的特性。而元件式軟體工程背後必須要有元件塑模方法論在背後支持，才能夠將企業的需求轉換成最終的元件，當使用元件塑模方法論最後產出元件規格後，下一步就是實際將所描述的元件規格用業界各種軟體元件模式標準(EX:COM+[Microsoft Corporation]、CORBA[OMG, 2001]、EJB等等)來實作(implementation)。而在這樣的實作上必須要將所描述的元件規格(Component Specification)圓滿地表現出來，其關鍵就是要有良好且完整的對映(mapping)。此外，由於網際網路的蓬勃發展，在軟體元件架構上也已邁向了分散式物件運算的架構，而在一個成左漱懂畢★B算中，是經常需要非同步訊息(asynchronous message)傳遞的。所以這篇文章主要就是對於從元件規格到實際元件實施的對映上，加入非同步訊息傳遞的考量，進而提出一個新的對映模式。並且於文章的後段會使用一個線上數位學習課程訂購系統來當作展示此對映研究構思的例子。
　　在選擇元件塑模的方法論上，經評估後選擇較優良的UML Components作為對映研究的方法論。但是由於UML Components方法論仍然存在些釭滲妘插A所以在考量了不影響元件於原UML Components方法論的系統架構(system architectures)之分層模式下，本文實際上採用的是經過稍作擴充改善的版本[陳鴻明2003]。
　　在實際元件實施上，則是採用Sun公司的EJB(Enterprise Java Beans)軟體元件模式標準。會如此選擇是因為EJB是J2EE(Java 2 Enterprise Edition)的核心，而J2EE支援了較為廣泛應用於現有企業系統的分散式運算服務(例如CORBA、RMI/IIOP[Sun Microsystems, Inc.]、XML-RPC[Dave Winer1999]、SOAP[World Wide Web Consortium]等等)。
　　透過此新對映模式，當業界在元件軟體發展上是使用UML Components及EJB，且有非同步訊息傳遞考量之需求時，就能夠良好且快速的實際實作(implementation)了。

[ 英文摘要 ]

Component-based Software Engineering has gradually replaced the traditional software engineering. With the trait of composition and reuse, it has become the paradigm of new software Engineering Techniques for developing enterprise software. Component-based Software Engineering demands the support of Component Modeling Methodology that enables transferring the requirements enterprise into the final component. After using component Modeling Methodology to produce component specification, the specification can be practically implemented in a variety of standards of software component Model (e.g., COM+、EJB、CORBA , etc) in the enterprises. In order to successfully implement the spec., excellent and complete mapping is a key factor. Furthermore, due to the thriving development of Internet, the architecture of Software component has matched that of distributed object operation. Since a successful distributed operation frequently requires the transfer of asynchronous message, this study mainly focuses on mappings from component specifications to component implementations which augments the consideration about the transfer of asynchronous message to come up with a new model of mapping. To illustrate, an on-line E-Learning curriculum order system will be used for demonstrating the mapping idea.
For completing Component Modeling Methodology, this paper adopts an amended edition of original UML Components Methodology by Chen Hong-Ming (2003).
In the context of the practical implementation of component, this paper adopts EJB (Enterprise Java Beans) software component model standard of Sun Microsystems, Inc. The reason is because EJB is the core of J2EE (Java 2 Enterprise Edition), and J2EE supports the distributed operation services that are widely applied by many present enterprise systems.
With this new mapping model, when the enterprises use UML Components and EJB
on component software development, and any systems have requirements of transferring asynchronous message, the implementation can be more effective.

[ 論文目次 ]

目錄
中文摘要………………………………………………………………ⅰ
英文摘要………………………………………………………………ⅱ
誌謝…………………………………………………………………....ⅲ
目錄……………………………………………………………………ⅳ
表目錄…………………………………………………………………ⅵ
圖目錄…………………………………………………………………ⅶ
第壹章緒論……………………………………………………………1
1 . 1 研究背景與動機…………………………………………………………..1
1 . 2 研究目的…………………………………………………………………..3
1 . 3 研究流程…………………………………………………………………..5
1 . 4 論文章節簡述……………………………………………………………..6
第貳章文獻探討………………………………………………………7
2 . 1 元件塑模方法論與軟體元件架構的選擇………………………………..7
2 . 2 改進版的UML Components方法論……………………………………..7
2 . 3 Enterprise Java Beans(EJB)………………………………………….…..15
2 . 3 . 1 JMS(Java Message Service)與Message-driven Bean……………..23
第參章對映(mapping)模式…………………………………………30
第肆章案例：e-learning數位學習網站……………………………45
4 . 1 UML Components方法論元件塑模…………………………………….45
4 . 1 . 1 需求定義階段……………………………………………………...45
4 . 1 . 1 . 1 找出行為者……………………………………………….….46
4 . 1 . 1 . 2 找出使用個案…………………………………………….….47
4 . 1 . 1 . 3 描述使用個案與關係…………………………………….…47
4 . 1 . 1 . 4 產生使用個案模型……………………………………….…54
4 . 1 . 2 元件識別階段……………………………………………………..54
4 . 1 . 2 . 1 識別企業型態模型及企業介面………………………….…54
4 . 1 . 2 . 2 識別系統介面及操作…………………………………….…68
4 . 1 . 2 . 3 產生初步的元件規格架構……………………………….…77
4 . 1 . 3 元件互動階段……………………………………………………..79
4 . 1 . 3 . 1 發掘企業操作…………………………………………….....79
4 . 1 . 3 . 2 修飾介面及操作………………………………………….....86
4 . 1 . 3 . 2 . 1 維護參照完整性…………………………………..…..86
4 . 1 . 3 . 2 . 2 整理企業介面……………………………………..…..88
4 . 2 實際對映(mapping)…………………………………………………..….89
4 . 3　效益探討……………………………………………………………..….91
第伍章結論…………………………………………………………..96
5 . 1 研究貢獻……………………………………………………………..….96
5 . 2 未來研究方向…………………………………………………………...98
參考文獻………………………………………………………………99

[ 參考文獻]

參考文獻

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