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Visualization of relations between computers in the Internet
Cimbálek, Přemysl ; Malý, Jan (referee) ; Komosný, Dan (advisor)
Internet Protocol Television (IPTV) transmits the television signal over the TCP/IP family of protocols. Its advantages are for example that the transmitting is not only one-way as in the “classical” TV broadcasting, but it can provide feedback such as interactivity. There are also some problems which avoids development, for example low channel capacity of access networks. That is why new methods , for example how to get more efficiency in IPTV transmission, are proposed. The main task of this diploma thesis is to visualize tree structure of relations between nodes in the network, based on understanding of principles of the hierarchical summarization and IPTV transmitting. The nodes in the tree structure provide computing and summarizing of the data in back-way channel. There is the data from the end users in this channel. In the first part of this diploma thesis there is explained the principle of IPTV and its differences as compared with classical TV broadcasting. The part is also aimed for the supported services, advantages and disadvantages. There is explained the compressing data with the MPEG-2 and MPEG-4 standards and problems with transport networks called “last mile problem.” To transmitting data IPTV uses Source Specific Multicast – every user connects to the multicast session with requested TV program. Feedback is provided by unicast. Feedback network uses the hierarchical summarization principle to reduce the data. This problem, connected with RTP, RTCP and TTP protocols, is in the work described as well. There is an international experimental network called PlanetLab mentioned in theoretical part of this work. Proposed structure of new protocol and applications including the visualization for IPTV broadcast, is tested in that network. In the practical part of this work there are discussed possibilities and methods for the visualization and data storage. Because of high availability and flexibility, there were chosen web technologies, such as MySQL for data storage. The tree model is executed by Java. The visualization is solved by web technologies, source code for visualization is dynamically generated by scripts in JSP (Java Server Pages). Graphical output is provided by the vector format SVG (Scalable Vector Graphics) which is created for graphical expression on the internet and in the mobile phones. There were created interactive web application thanks its ability to cooperation with Javascript technology. This application visualizes relation-tree structure of nodes. In this work there are explained basics of all used technologies, there are also given reasons for chosen methods and formats. Examples and interesting parts of solution are mentioned as well.
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Information System for Users' Workload Monitoring
Gábor, Martin ; Weiss, Petr (referee) ; Rychlý, Marek (advisor)
The goal of the bachelor thesis is an implementation of the information system for users' workload monitoring. The information system collects information from online stations, which provides to users as statistics. The communication with stations is proceeded by web services. The information system is implemented in Java EE as a multiplatform application with web interface.
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Comparison of technogies for creation of information systems
Hubený, Lukáš ; Macho, Tomáš (referee) ; Holek, Radovan (advisor)
The topic of this master thesis is a comparison of the technologies for information systems creation. There are compared four fundamental technologies: Php, ASP.NET, JSP and Perl. The comparison of these technologies have two main stages: The first stage is mostly theoretical and demonstrate theoretical advantages and drawbacks of these platforms. The second stage demonstrates on some short examples advantages of platforms during information systems programming. Co-operation with database systems is compared too.
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Videoconferencing Application
Jandera, Pavel ; Šmirg, Ondřej (referee) ; Číka, Petr (advisor)
Videoconferencing is a modern way of communication, in which the participants carry picture and sound and during transmission can also exchange various data. The aim of this work is to create an application for the connection of up to eight participants to videoconferencing and create a web interface to facilitate configuration of this application. Videoconferences types and the feasibility are described in the first part of this work. Furthermore, the SIP (Session Initiation Protocol) protocol used to production of multimedia sessions is described. RADVISION IVP system was selected to the implementation of videoconferencing application. IVP is a complex system for the operation of videoconferencing, which allows implementing and operating various types of services. Basic components of system are described in next section of this work. Second part of this work describes interface for applications creating that IVP offers to programmers. The main part of this work is the design and implementation of video conferencing application that is realized as an IVP service. There is described the implementation and testing. A web interface to facilitate the configuration of video conferencing applications has been designed and implemented. This interface also allows the service provider to manage user accounts. The web interface was implemented in Java EE.
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Data Extraction from Dynamic Web Pages
Puna, Petr ; Kunc, Michael (referee) ; Burget, Radek (advisor)
This work contains a brief overview of technologies for representation and obtaining data on WWW and describes selected web data extraction tools. The work designs a new tool for obtaining pages generated by filling in web forms, which allows its user to define data on such web pages and which can extract those data and offer it in a XML format suitable for future machine processing.
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Multilanguage Invoice System of Small Company
Bondra, Ivan ; Stryka, Lukáš (referee) ; Jaša, Petr (advisor)
The purpose of this bachelor's thesis is to design and implement multilanguage invoice system of small company or small trader. The system should enable an effective record of billing documents to be bound to the storage card and a list of partner companies. The applicability of the system should support the import invoices from other commonly used accounting systems. This documentation describes the various technologies used in developing this system and a large part of the document is devoted to analysis, design and implementation of the solution.
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Electronic Management of Agility Race
Vorlová, Pavla ; Straka, Martin (referee) ; Kaštil, Jan (advisor)
The work describes implementation of system for agility competition manegement. The system contains web interface and program which evaluates results in competition location. This thesis describes usage of JSP, Java Beans and MySQL. The focus was on transfering data between web database and client application database.
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Development Environment for Java EE Based Application
Chudý, Michal ; Burget, Radek (referee) ; Šuška, Boris (advisor)
This bachelor thesis deals with essential Java Enterprise Edition specification technologies. It briefly describes their architecture, usage and implementation details. Furthermore this thesis is a tutorial for development and computer enviroment preparation for Java EE based technologies. There are added simple applications as a part of this thesis which demonstrate individual technologies and their usage options. It describes how to create, build and run this projects.
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Internal Information System for Small Company
Huvar, Michal ; Stryka, Lukáš (referee) ; Jaša, Petr (advisor)
The purpose of this bachelor's thesis is to design and implement internal information system of small company, which files and attendance of employees, offers effective administration of orders, services, projects and provides well presented results. This work describes some of modern popular tools for development of information systems. It follows detailed analysis, design and implementation of whole application.
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