This paper may be of interest for anyone developing component based software, (such as software architects and designers, advanced web system developers etc), companies choosing between technologies and that are in need of high performance, etc. The Enterprise Java Beans (EJB) technology and the .NET technology are similar to each other in many ways. Both of the technologies are used for developing components that can interact through some kind of server, it is possible to make distributed applications etc. The similarities between these technologies make it interesting to compare them. They also make it hard to decide which technology to choose. One goal of this report is to present information that can help choosing. This is done by presenting basic component theory, information about EJB and .NET, and finally the result of an experiment is presented. In the experiment one or more clients connect to one or more servers to get to a set of distributed components. As it turns out, EJB is superior to .NET in all areas but one. EJB needs more resources and may cut clients of when not getting enough. .NET on the other hand is slow, but it always delivers. / Det här arbetet kan vara av intresse för komponentutvecklare, företag som väljer mellan teknologier och anser att prestanda är viktigt. Enterprise Java Beans (EJB) och .NET har många likheter och kan användas för komponentutveckling. Likheten mellan teknologierna gör det intressanta att jämföra dem med varandra. Grundläggande komponentteori bygger tillsammans med teori om EJB och .NET upp en bas som sedan används för att göra en teoribaserad jämförelse. Slutligen presenteras resultatet av ett experiment där de båda teknologierna jämförs. Där visar det sig att EJB är överlägsen i alla avseenden utom ett. I EJB behövs mer resurser än i .NET för att det ska fungera optimalt och för att allt arbete ska klaras av. .NET är långsammare men lyckas alltid genomföra sitt uppdrag. / If using my mail address found under “Författares e-post/Author's e-mail:”, please remove “ANTI_SPAM” from the rear end of the address. Om du vill skicka ett mail till e-postadressen under rubriken "Författares e-post/Author's e-mail:", så ta bort texten "ANTI_SPAM".

The thesis deals with information system for multicinema. In general, it is about project and largely realization software which can manage relevant information in multicinema organization. The first part is introduction and study of programming platform for construct information systems. In general they are PHP, DOT NET and J2EE. There is also description of related technologies for remote desktop and web clients too. The second part is about analysis. The most important chapters contain determination requirements and database schema for persistent storage data. At the end of this part analysis class diagram is mentioned too. The third part is about projection and about software realization using J2EE technologies EJB, JSP and so on. Selected segments of the system are described using UML diagrams. The appendix contains index to abbreviations. Main addition is compact disk containing complete documentation and created software (source codes, binaries).

Auswahl, Test und Implementierung einer objektorientierten, hochverfügbaren Middlewareplattform auf Basis von EJB für ein mobiles Patientenbetreuungssystem (Mobtel) unter besonderer Berücksichtigung konsistenter und persistenter Informationsspeicherung (Java)

This master thesis deals with technologies for persistence of objects in Java. It briefly describes options of persistence of objects into files and further especially modern technologies for persistence of objects into database systems, particularly relational. It describes JDBC technology, framework Hibernate, application interface JDO, SQLJ technology, frameworks OJB and TopLink in detail and briefly the other tools. The emphasis is especially put on their usage, which is illustrated by amount of examples, their properties comparison and recommendation for the application building. The other part of thesis deals with life phases of information system development, where the differences of usage of JDBC and Hibernate, their mutual comparison from different points of view, importance of software architecture and design patterns for the application development in J2EE are presented.

在J2EE架構下金融資訊系統整合之研究 研究生：黃琮祐 指導教授：曾淑峰 國立政治大學資訊管理系碩士班 摘要 本研究主要目的在於運用標準J2EE架構建立一個金融資訊系統整合概念，並使用EJB(Enterprise Java Bean)軟體元件與設計樣式(Design Patterns)規劃並設計雛型系統架構，使用訊息系統作為系統與系統之間或軟體元件與軟體元件之間溝通的媒介。 本研究所採行的整合方式為使用訊息系統（或稱Message Oriented Middleware，簡稱MOM），藉由標準的JMS(Java Message Service)作訊息傳遞，是眾多可供選擇的整合方式之一，其優點在於降低系統整合的進入門檻、達成系統之間的耦合、降低連線管理的複雜性、並可作負載平衡等之外，也可妥善運用其建置在J2EE平台上的優勢，每當有新的整合性金融商品被研發出來時，即可藉由軟體元件的佈署加入系統的服務中，除了迅速擴充的彈性之外，也使得系統更易於維護。 本研究發衽於當前金融機構的併購風潮，金控公司如雨後春筍般紛紛成立，期望藉由本研究能夠為金控公司成立後欲進行交叉銷售(Cross-Saling)時的系統整合需求提出一個可行方案，然資訊系統整合的議題所涉及的範圍甚廣，舉凡有關網路通訊整合、資源系統介面整合、資料格式轉換、系統管理、流程管理、甚至開發工具等皆屬之，而本研究所探討的內容或可歸納於網路通訊整合及資訊系統介面整合相關範圍。 本研究經過整合概念設計後，假想一提供整合性金融商品服務的雛型系統，並將之建構在J2EE平台上，運用JMS訊息服務、元件技術與設計樣式概念得到下列研究成果： 1. 提供一個在J2EE上以訊息傳遞達成單一入口多元服務的系統整合概念架構方式。 2. 使用非同步的訊息傳遞，並將設計樣式與EJB元件加入此類系統整合中，這與傳統的整合方法如CORBA、Java RMI、微軟的COM/DCOM等有頗大的不同，可做為未來他人相關研究的參考。 關鍵詞：系統整合、金融控股、JMS、非同步傳輸、EJB、設計樣式

Application frameworks are tools that enable easier development of web applications and enhance their quality. Because there are so may Java web application frameworks in existence it is difficult at times to choose the correct one to suit a particular application. This thesis examines frameworks from a general point of view. Descriptions of the characteristic functions of frameworks are also covered, along with functions, and the ways in which they differ from each other; and thus it enables the most appropriate framework to be chosen. The thesis also analyses typical representatives of frameworks for certain uses, it demonstrates their activity by means of standardized applications and compares them in terms of practical use.

The thesis is focused on the problem of the passportization and the visualization of wide computer networks with the usage of geographic information systems. It discusses principals and properties of geographic information systems and spatial databases that are frequently used as data carriers for geographic information systems. The main part of the thesis is dedicated to the passportization of computer networks with focusing on the physical network structure. After the definition of the passport format the thesis continues with the analysis, the proposal, the implementation and the testing of the geographic information system for managing and visualization of the passport in this format. The thesis is ended by a case study that demonstrates the passportization process of an access computer network in the implemented system.

This thesis deals with component software, software frameworks for the Eclipse platform and the creation of a graphical editor for designing component systems with the usage of the Eclipse platform. After introducing the conception of UML component diagram, it describes the overview of component software, components and component technologies of major players on ground of component software: OMG, Sun, Microsoft. A significant part is dedicated to software frameworks for the Eclipse platform for manipulating with meta models. EMF, GEF and GMF are described in more detail. The main part presents the design, implementation and evaluation of a graphical editor for designing component systems with emphasis on understandability and good arrangement.

Die Zugriffslokalität referenzierter Daten ist eine wichtige Eigenschaft verteilter Anwendungen. Lokales Zwischenspeichern abgefragter entfernter Daten (Caching) wird vielfach bei der Entwicklung solcher Anwendungen eingesetzt, um diese Eigenschaft auszunutzen. Anschliessende Zugriffe auf diese Daten können so beschleunigt werden, indem sie aus dem lokalen Zwischenspeicher bedient werden. Gegenwärtige Middleware-Architekturen bieten dem Anwendungsprogrammierer jedoch kaum Unterstützung für diesen nicht-funktionalen Aspekt. Die vorliegende Arbeit versucht deshalb, Caching als separaten, konfigurierbaren Middleware-Dienst auszulagern. Durch die Einbindung in den Softwareentwicklungsprozess wird die frühzeitige Modellierung und spätere Wiederverwendung caching-spezifischer Metadaten gewährleistet. Zur Laufzeit kann sich das entwickelte System außerdem bezüglich der Cachebarkeit von Daten adaptiv an geändertes Nutzungsverhalten anpassen. / Locality of reference is an important property of distributed applications. Caching is typically employed during the development of such applications to exploit this property by locally storing queried data: Subsequent accesses can be accelerated by serving their results immediately form the local store. Current middleware architectures however hardly support this non-functional aspect. The thesis at hand thus tries outsource caching as a separate, configurable middleware service. Integration into the software development lifecycle provides for early capturing, modeling, and later reuse of cachingrelated metadata. At runtime, the implemented system can adapt to caching access characteristics with respect to data cacheability properties, thus healing misconfigurations and optimizing itself to an appropriate configuration. Speculative prefetching of data probably queried in the immediate future complements the presented approach.

This thesis deals with the development of a client-server application for Red Hat company. Client participates in testing process of JBoss platform and gets user-defined performance data which sends during testing to the server application by platform independent communication. The server application allows to analyze the received data which can be also compared by several perspectives. These services for data analysis and comparison are accessible for server users using the web client. The server application supports the import of the performance data stored in the XML file and also their export for qVue portal. The client part of the application is implemented in Java and the server application is based on Java EE platform.