The diploma thesis deals with file sharing among users through peer-to-peer transfer in a web environment. The aim was to create a simple application which would provide a group of users with an opportunity to share files among them without any presence of third party or limitation. I have met the target using modern web technologies, of which the most important was WebRTC library through which peer-to-peer transfer has been implemented. These technologies were supported by optimased algorithm and the most recent tools for processing and storage of shared files. The result is a real-time application enabling users to create rooms, in which they can share their files. This product was subjected to speed tests, thanks to which the application turned out to be the fastest in the tested environment contrary to solutions with similar nature or any other commonly used tools for file sharing.

This master's thesis is focused on Information Technology Infrastructure Library (ITIL). Objective of the project was to analyze, design and implement a game engine, which would provide simulation of IT service operation in real or accelerated time or in turns. Basic part of the engine is a creators mode, which allows users to create custom IT services and specify their behaviour during operation, like the service would be used in real. Another part of the engine is a players mode and simple service desk. In this mode, players can take care of fluent operation of their services. Thanks to this, they can learn and train practices, which are described in ITIL.

Master thesis deals with L grammar systems. The basic types of grammar systems are studied. There are analyzed different types of L grammars and their use in field of plant development simulation. The work focuses on open L grammars. A parallel system consisting of open L grammars is designed. Communication takes place through the exchange of information between plants and their environment. Implemented is real kind of tree. Simulated is typical environment in which this kind of tree occurs normally. The system properties are examined from the point of view of simulation and the time-consuming interpretation of strings. At the end of this thesis there are described some other options of future development of the project together with the possibilities of using the proposed system.

Tato práce popisuje realizaci webové aplikace, která umožňuje centrální administraci služeb pro sbor umělců, jako je například komorní orchestr. Do této administrace patří zejména správa obsahu webové prezentace, umělců a jejich smluv a honorářů, koncertů, skladeb a rezervací a objednávek online vstupenek. Aplikace integruje vestavný Konfigurátor a rezervační systém koncertních síní (KORES), vytvořený v rámci bakalářské práce a spravuje dále jím vytvořené objednávky.

The aim of this work is to design and implement applications for the creation of web page layout facilities using JavaScript. The work includes the descriptions of the available methods of object positioning using the CSS given possibilities, the CSS 2.1 standard, and the difficulties of object positioning using CSS. Further, it includes the analysis of how the object placement is solved in the Java programming language using grid based layout managers GridLayout and GridBagLayout. Based on the obtained knowledge, designs are created for the solving of object placement in the creation of web pages using the grid principle. The object placement is solved by defining new HTML attributes for position determination, and also by creating a graphical editor for object placement. All the solutions are implemented using JavaScript.

The purpose of this master's thesis is to design and create system for company dealing with telephoning, which will simplify and automate the work of their employees as much as possible. System will meet the requirements on modern information system of telemarketing company and will be connected to telephone private branch exchange, from which it will be getting information about all phone calls including their voice records. The work is focused on usage of modern quality technologies and their integration into one system. First part of this work will closely describe requirements on this system and resulting creation of design. In the second part there will be presented used technologies and implementation of particular sections including configuration and connection with telephone private branch exchange. There will be also description of performance measurement process and resulting optimalization of critical sections in which high performance is required.

This diploma thesis is focused on computer 3D graphics and the implementation of educational applications in JavaScript language. Discussed topics of computer graphics include object transformations, Bezier patches and the role of the camera in the scene. The thesis describes the basic theory of these areas and educational applications. The thesis also includes the detailed description of the features and the implementation of the created applications. In the end of the thesis possible extensions are discussed.

This thesis deals with the development of multilingual for web browsers Mozilla Firefox and Google Chrome. The purpose of the extension is to enable the automated management of provided consents to the processing of personal data on websites using the Transparency and Consent Framework. Extension was developed on the basis of knowledge about this framework and about legal norms GDPR and ePrivacy Directive, which deal with the protection of personal data. Knowledge of the method of developing extensions for web browsers using WebExtensions was also used during the implementation. During testing, consent was successfully enforced in 96,2 % of tested websites in Mozilla Firefox. In Google Chrome, success has been achieved in 82,1 % of tested websites. The banner requiring consent was not displayed in 33 % of websites in Mozilla Firefox and in 31,1 % of websites in Google Chrome.

This diploma thesis focuses on graph database data visualization, where data is stored in RDF format. Standard visualisation of RDF data in tables does not offer sufficiently usable user view. One of the goals of this work is to show RDF data in interactive graph, which is ideal form of viewing data considering lucidity and information value. The graph gives good view of not only the data itself but also relationships between the data. Another goal is to test ability of browsers to visualize large amounts of data.

Under de senaste decennierna har webben utvecklats allt mer, och är idag en stor del av människors vardag. Det finns idag över 1,8 miljarder webbplatser i bruk, och över 97% av dessaanvänder sig av JavaScript som programmeringsspråk för klientsidan. Människans koncentrationsförmåga har också minskat genom åren, och det ställs idag allt högre krav på snabba responstider på webben. Användarupplevelsen är också väldigt viktig för att en webbplats ska lyckas med sitt ändamål. Vi har i vår studie valt att undersöka och jämföra prestandan i JavaScript-ramverken Svelte och Vue, där vi ville studera eventuella prestandaskillnader med särskild fokus på responstider. Vi ville även undersöka om eventuella prestandaskillnader kunde upplevas av användarna vid olika typer av manipulationer av DOMen, såsom exempelvis tillägg och borttagning av HTML-elementet <div> i både större och mindre skala, och således påverka användarupplevelsen. Vi utvecklade två stycken single-page-applikationer som använder sig utav JavaScript, där den ena använder sig av Vue och den andra utav Svelte som frontend-ramverk, för att sedan utföra prestandatester på bägge webbplatserna. Därefter lät vi en grupp användare testa webbplatserna för att sedan svara på en enkät, där enkätfrågorna fokuserade på hur de upplevde prestandan ochom de kunde märka någon skillnad mellan applikationerna. Datainsamlingen för att kunna besvara de andra parametrarna för ramverken som denna studieämnade att undersöka, som går under användbarhet, skedde genom att skicka ut en enkät där vi lät både professionella frontend-utvecklare samt utvecklare på hobbynivå med erfarenhet av både Svelte och Vue besvara ett antal frågor om användbarhet. Slutsatsen av studien mynnar ut i att prestandaskillnader mellan ramverken i våra single-page-applikationer existerar, och kan i vissa fall också märkas av användarna. Om utvecklarna själva får bestämma vilket ramverk de föredrar väljer de professionella utvecklarna att arbeta med Vue och hobbyutvecklarna Svelte. För den officiella dokumentationen tenderade båda respondentgrupperna att föredra Vue över Svelte.