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CMS system combined with e-shop system
Orság, Lubomír ; Vyoral, Josef (referee) ; Cvrk, Lubomír (advisor)
Aim of this master’s thesis was design of front-end and back-end interfaces of electronic shopping system. Design consists of completing individual use-case and workflow diagrams. Next it was explored possible security risks, designed security actions against these risks, explored payment methods usable in electronic shopping systems and methods of its implementation. There was chosen PHP programming language in combination with MySQL relation database management system to be used for development of final application. As result of this work was development of electronic shopping system final application with extended user options, ability of placement at any business type and possibilities that present-day internet user expects from electronic shopping system. To accomplishment the aim of this work contributed implementation of extended user options as advanced catalog items sorting, multi level catalog structure and advanced search options. It succeeded in choosing and implementing designed security prevention and implementing of template engine into final application. Whole system is described in detail using data modeling and class diagrams.
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Preparation of web pages for handicapped users
Krupa, Martin ; Vyoral, Josef (referee) ; Cvrk, Lubomír (advisor)
My bachelors thesis says about creating of accesible web pages, eplains why are accessible web pages neccessary, elucidate who are handicaped users, shows with whitch problems they can meet on internet, witch accestories they use and why is important to devote to this problem in practice. It also explains methods used for testing of accessiblity. Not every user is equal, everyone has his owns needs and so unique requirements, that is not able to overleap or elude. Practically they are visual and audio dissabled, users with deteriorated motile of upper limbs and users with disorders of learning and concentracion. This users have their own auxiliary technologies, for example audio responses, braille’s lines etc., that mediate informations from web pages to them. If we want these widgets to work, it’s neccessary, that these pages would be created with some rules and policies of accessible web. These web pages are more also ussefull for standard users.
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High-Level Object Oriented Genetic Programming in Logistic Warehouse Optimization
Karásek, Jan ; Rakús,, Martin (referee) ; Cvrk, Lubomír (referee) ; Burget, Radim (advisor)
Disertační práce je zaměřena na optimalizaci průběhu pracovních operací v logistických skladech a distribučních centrech. Hlavním cílem je optimalizovat procesy plánování, rozvrhování a odbavování. Jelikož jde o problém patřící do třídy složitosti NP-težký, je výpočetně velmi náročné nalézt optimální řešení. Motivací pro řešení této práce je vyplnění pomyslné mezery mezi metodami zkoumanými na vědecké a akademické půdě a metodami používanými v produkčních komerčních prostředích. Jádro optimalizačního algoritmu je založeno na základě genetického programování řízeného bezkontextovou gramatikou. Hlavním přínosem této práce je a) navrhnout nový optimalizační algoritmus, který respektuje následující optimalizační podmínky: celkový čas zpracování, využití zdrojů, a zahlcení skladových uliček, které může nastat během zpracování úkolů, b) analyzovat historická data z provozu skladu a vyvinout sadu testovacích příkladů, které mohou sloužit jako referenční výsledky pro další výzkum, a dále c) pokusit se předčit stanovené referenční výsledky dosažené kvalifikovaným a trénovaným operačním manažerem jednoho z největších skladů ve střední Evropě.
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Distributed Systems on the .NET Framework Platform
Vítek, Martin ; Makáň, Florian (referee) ; Cvrk, Lubomír (referee) ; Herman, Ivo (advisor)
With the expansion of the Internet communication and related availability of increasing number of services built on different technologies, distributed systems represent a solution to integrate these network services and provide them to users in a coherent form. The .NET Framework which provides an environment for application development in a highly distributed environment of Internet and intranet can be used to achieve this goal. This PhD thesis deals with access to shared resources in the context of distributed systems using the .NET platform. The first part of the work is devoted to describing the basic principles of distributed systems and .NET platform techniques, which can be used for implementation of the principles. For the purposes of request processing having asynchronous nature not only in distributed systems a universal interface for the description of asynchronous operations was designed and implemented. The interface extends standard asynchronous techniques on the .NET platform. In order to address the issue of access to shared resources model was designed based on the principles of object-oriented programming, along with basic algorithm to avoid deadlock in the case of use resources by multiple processes (threads) simultaneously. This extendable model has been successfully implemented and its functionality verified in basic scenarios of access to shared resources. After the definition of resources and their dependencies the implemented model allows working with resources as with any other objects on .NET platform. The synchronization processes proceed transparently in background.
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Information system for management of cars monitored by satellites
Čech, Dominik ; Skořepa, Michal (referee) ; Cvrk, Lubomír (advisor)
To purpose of this master´s thesis is modernization of database system. This system is designed in Microsoft Office Access program. To create the new system will be used HTML and PHP languages, as a database server will be used MySQL. The first section contains information about data modeling. In the next part there is description of UML language and Use Case diagram for users of system. The main part of the thesis is description of the created system. There are views of screens which can be used by users. Multiuser operation is realized by users rights and definitions enter to the system. The whole database is created as a web application. Application will be uploaded to the company server. Users start the system through their web browser.
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Secure peer-to-peer communication system
Eliáš, Luboš ; Koutný, Martin (referee) ; Cvrk, Lubomír (advisor)
The main aim of this master's thesis is to implement a common, secure and peer-to-peer communication system. The system has ability to automatically establish and run a secure end-to-end connection. It has this ability even if a network address translator is in the way to the destination system, without need of any explicit configuration of this translator. The security procedures of this system are in a transparent manner masked from individual applications, which had to solve this challenge in their own way. A responsibility for a security is delegate to an application-independent subsystem working within the core of an operating system. The security of this subsystem is based on capturing the outbound and inbound IP packets and their authentication and encryption. The system was successfully implemented in MS Windows XP operating system, in programming language C++. Transfer rate of communication tunnel in different network bandwidth speeds was measured. Result shows, that in the case of use the system on standard PC sold nowadays is practically no decrease of the transfer rate in comparison to a common channel.
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High-Level Object Oriented Genetic Programming in Logistic Warehouse Optimization
Karásek, Jan ; Rakús,, Martin (referee) ; Cvrk, Lubomír (referee) ; Burget, Radim (advisor)
Disertační práce je zaměřena na optimalizaci průběhu pracovních operací v logistických skladech a distribučních centrech. Hlavním cílem je optimalizovat procesy plánování, rozvrhování a odbavování. Jelikož jde o problém patřící do třídy složitosti NP-težký, je výpočetně velmi náročné nalézt optimální řešení. Motivací pro řešení této práce je vyplnění pomyslné mezery mezi metodami zkoumanými na vědecké a akademické půdě a metodami používanými v produkčních komerčních prostředích. Jádro optimalizačního algoritmu je založeno na základě genetického programování řízeného bezkontextovou gramatikou. Hlavním přínosem této práce je a) navrhnout nový optimalizační algoritmus, který respektuje následující optimalizační podmínky: celkový čas zpracování, využití zdrojů, a zahlcení skladových uliček, které může nastat během zpracování úkolů, b) analyzovat historická data z provozu skladu a vyvinout sadu testovacích příkladů, které mohou sloužit jako referenční výsledky pro další výzkum, a dále c) pokusit se předčit stanovené referenční výsledky dosažené kvalifikovaným a trénovaným operačním manažerem jednoho z největších skladů ve střední Evropě.
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Distributed Systems on the .NET Framework Platform
Vítek, Martin ; Makáň, Florian (referee) ; Cvrk, Lubomír (referee) ; Herman, Ivo (advisor)
With the expansion of the Internet communication and related availability of increasing number of services built on different technologies, distributed systems represent a solution to integrate these network services and provide them to users in a coherent form. The .NET Framework which provides an environment for application development in a highly distributed environment of Internet and intranet can be used to achieve this goal. This PhD thesis deals with access to shared resources in the context of distributed systems using the .NET platform. The first part of the work is devoted to describing the basic principles of distributed systems and .NET platform techniques, which can be used for implementation of the principles. For the purposes of request processing having asynchronous nature not only in distributed systems a universal interface for the description of asynchronous operations was designed and implemented. The interface extends standard asynchronous techniques on the .NET platform. In order to address the issue of access to shared resources model was designed based on the principles of object-oriented programming, along with basic algorithm to avoid deadlock in the case of use resources by multiple processes (threads) simultaneously. This extendable model has been successfully implemented and its functionality verified in basic scenarios of access to shared resources. After the definition of resources and their dependencies the implemented model allows working with resources as with any other objects on .NET platform. The synchronization processes proceed transparently in background.
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Preparation of web pages for handicapped users
Krupa, Martin ; Vyoral, Josef (referee) ; Cvrk, Lubomír (advisor)
My bachelors thesis says about creating of accesible web pages, eplains why are accessible web pages neccessary, elucidate who are handicaped users, shows with whitch problems they can meet on internet, witch accestories they use and why is important to devote to this problem in practice. It also explains methods used for testing of accessiblity. Not every user is equal, everyone has his owns needs and so unique requirements, that is not able to overleap or elude. Practically they are visual and audio dissabled, users with deteriorated motile of upper limbs and users with disorders of learning and concentracion. This users have their own auxiliary technologies, for example audio responses, braille’s lines etc., that mediate informations from web pages to them. If we want these widgets to work, it’s neccessary, that these pages would be created with some rules and policies of accessible web. These web pages are more also ussefull for standard users.
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