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Tools for Development of XBW
Mikula, Mário ; Nečaský, Martin (referee) ; Lánský, Jan (advisor)
This thesis discusses two tools for simplifying the development process of XBW compression system. The rst is a library for writing up debug information suitable for the hierarchical structure of XBW modules. Which is a dynamic structure and can change over time. The second is a program which veries correctness of XBW functionality based on selected parameter combinations. Parameter combinations for testing are dened in a suitable manner - with regular expressions.
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A Tool for XML Data Analysis
Vinárek, Jiří ; Nečaský, Martin (referee) ; Holubová, Irena (advisor)
The aim of the work is to implement a tool for analysis of XML data, DTDs and XSDs. In addition the tool is able to visualize input XML documents, DTD and XML schemes, show outputs as tables and plotted graphs. The application is capable of comparision between XML data and corresponding schemes results. Results can be saved and later merged with results of the new documents. The application can efficiently process large documents and was written with a respect to extensibility and maximal possible variability.
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Process Mediation Framework for Semantic Web Services
Vaculín, Roman ; Neruda, Roman (advisor) ; Nečaský, Martin (referee) ; Svátek, Vojtěch (referee)
The goal of Web services is to enable interoperability of heterogeneous software systems. Semantic Web services enhance syntactic specifications of traditional Web services with machine processable semantic annotations to facilitate interoperability. AsWeb services get popular in both corporate and open environments, the ability to deal with uncompatibilities of service requesters and providers becomes a critical factor for achieving interoperability. Process mediation solves the problem of interoperability by identifying and resolving all incompatibilities and by mediating between service requesters and providers. In this thesis we address the problem of process mediation of Semantic Web services. We introduce an Abstract Process Mediation Framework that identifies the key functional areas to be addressed by process mediation components. Specifically, we focus on process mediation algorithms, discovery of external services, monitoring, and fault handling and recovery. We present algorithms for solving the process mediation problem in two scenarios: (a) when the mediation process has complete visibility of the process model of the service provider and the service requester (complete visibility scenario), and (b) when the mediation process has visibility only of the process model of the service provider but...
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Advantages and deficiences of the SOAP protocol i practical use
Zelenay, Peter ; Nečaský, Martin (referee) ; Král, Jaroslav (advisor)
Environment of computer systems in organization evolved from monolithic systems to network of many smaller nodes connected in to distributed systems. These nodes need the ability to comprehensible communicate with each other in heterogeneous environment of infrastructure that is still changing and in context of permanent changes of requirements. This work identifies possible application of SOAP as a communication carrier in given environment. SOAP as a simple and very extensible protocol based upon XML promises wide application in solving this problem.
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Adaptability in XML-to-Relational Mapping Strategies
Kulič, Luboš ; Nečaský, Martin (referee) ; Holubová, Irena (advisor)
One of the ways how to manage XML documents is to exploit tools and functions o ered by (object-)relational database systems. The key aim of such techniques is to nd the optimal mapping strategy, i.e. the way the XML data are stored into relations. Currently the most efficient approaches, so-called adaptive methods search a space of possible mappings and choose the one which suits the given sample data and query workload the most. In the thesis we exploit a general heuristic method called Ant Colony Optimization (ACO) to solve the XML-to-Relational mapping problem. We also adapt the algorithm so it can be used on a dynamic variant of the problem. The algorithms are evaluated in a set of experiments with a conclusion that the ACO-based algorithms are suitable for the problem and can be even used as a basis of a dynamic mapping mechanism.
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Development of browser-based desktop-oriented web applications
Mihályi, Ondrej ; Nečaský, Martin (referee) ; Hnětynka, Petr (advisor)
In accordance with new trends in development of web-based services, applications that are running on the Internet tend to be more complex and feature rich. This happens while computers and network bandwidth are becoming more and more capable. We may see lots of different, often inventive, approaches in rich web application development, which try to surpass the constraints of web environment. Unfortunately, few technologies or tools provide support for ubiquitous access to data. This thesis aims to propose a development method of rich web applications, which transparently provide ubiquitous access to user data in many various environments and conditions.
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Automatic Construction of an XML Schema for a Given Set of XML Documents
Vyhnanovská, Julie ; Nečaský, Martin (referee) ; Holubová, Irena (advisor)
XML language is a popular communication and data exchange format. But there are still a lot of documents that have no XML schema definition. This thesis is focused on an automatic construction of an XML schema for such documents. As an XML schema description language XML Schema is used. This thesis is mainly focused on the advanced XML Schema construsts such as inheritance and on the ways of how user interaction can help in the schema inference process.
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Conceptual Design of Web Forms
Kasarda, Ján ; Holubová, Irena (referee) ; Nečaský, Martin (advisor)
As complexity of web applications and software grows, bene ts of applying modeling techniques for the development of such applications are increasing as well. In this work, we focus on modeling web forms which are an important part of current web applications. A short motivation example will demonstrate bene ts of modeling web forms at the conceptual level. We will then summarize existing approaches to conceptual modeling based on UML and Model-Driven Architecture (MDA). We will present XForms. Finally, we will discuss how to model web forms at the conceptual level and how to translate conceptual schemas of web forms to XForms representation. Our approach is based on MDA principles. Firstly, a problem domain is modeled at the conceptual level. Secondly, each form representing a part of the domain is modeled independently of its representation in XForms. The last step is generating XForms representations of the modeled forms.
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Automatic extraction of data from web pages
Gold, Otto ; Adámek, Jiří (advisor) ; Nečaský, Martin (referee)
In this thesis I focused myself on the increasing importance of an automatic web page processing. Thesis deals with proposition and implementation of a program tool which proceses the web pages. The objective of this tool is to separate data, the user demands and it's presentation cover. Processing of the page is driven by a script defined by the user. It is neccessary to define the script only at the very first job at the selected page. Next time some action is performed with the page, program follows this defined script. Thus, there is no need to put any more effort to get the up-todate version of the information from the page. I laid stress mostly on accessibility of the program for ordinary users and on minimalization of a work user must do when defining the operative script. Program also solves the wide-spreaded problem with the web pages source code, which differs from the XHTML language standard.
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