My diploma thesis is focused on creating an application for Electronic Register of Sales. The main sense of the application is to facilitate an implementation to e-shops, which were created on so-called "Greenfield". This application is supposed to help programmers in their work, because the most complex logic will be done by the app. Another big advantage of it is saving money to the e-shop owners. The implementation of my solution is more time saving than the implementation which is provided by Financial administration of the Czech Republic. The first part of my thesis is concentrated on Electronic Register of Sales issue. It's following by a description of technology and tools which I used for the app development. The selected technology and tools are the most modern and widely used nowadays. The end of the theoretical part is about introducing e-shop Tisknisi.cz In the practical part of the thesis I described the "E-EET" application and compiled its structure in terms of frontend and backend. Then I explained its technical solution. Code samples are accompanied by explanations. A phase "implementation solution" is described by POST request method. I've designed a price policy to ensure the profitability of "E-EET" application by myself.

This semester project deals with risk management. The whole work is conceived according to the current PMI standard. This is an analysis of the ten knowledge areas and the processes involved. After explaining the basic concepts of project management, all processes are briefly described, including the individual inputs and outputs of each process. The most attention is focused on the knowledge area of risk management, which is the subject of this work. From this knowledge area, the risk planning and identification processes are analyzed in more detail according to the assignment. On the basis of these two processes was created an architecture design of application. It describes application design and implementation in PHP framework Laravel. Final part of this thesis consists of testing chapter and final conclusion where the results and possible extensions are discussed.

This thesis deals with the making of virtual tours in the virtual reality. It deals with panoramic photographs and their use in creating virtual tours. In this thesis, two applications were designed and implemented. The first one as a web editor for creating and the other as a mobile application for viewing virtual tours. The created solution provides a comprehensive tool for working with virtual tours.

This thesis describes design and creation of application which collects and values telemetry data. Thesis consist of design and implementation which describes whole system, server settings as well as approach how to consume any given data. Corner stone of this application is based on given data from telemetry station (sensors) and projecting them on the map background. Application consist of user interface and logic how to project any given data into the map. Graphics interface is created using HTML, JavaScript and CSS programming languages. Logic itself is programmed by using backend language PHP including Laravel Framework in combination with MySQL database. Result of this thesis is working implementation covering administration user interface, working cooperation of MQTT server and APIs. There are also implemented all necessary parts for enablement of user interface with cooperation with map background layer. Implementation creates two possible ways how to install package necessary to run this app on Ubuntu system.

Denna studie fokuserar på att jämföra responstiden för API:er skapade med Laravel och Spring Boot inom flygresebranschen för att förbättra användarupplevelsen och minska risken för kundförlust. REST-standarden, som använder HTTP-metoderna GET, PUT, DELETE och POST för att hantera resurser, är en viktig del av webbutveckling. Trots detfinns det en brist på studier som jämför dessa två ramverk när det gäller responstid. Genom att utveckla fyra REST-API:er, en databas och ett testverktyg analyseras responstid och testas hypotesen i examensarbetet. Resultaten visar att Spring-Boot erbjuder en stabil och kortare responstid jämfört med Laravel för både GET- och POST-request. Framtida forskning kan utvidga studien till att inkludera andra populära API-ramverk för att ge en mer omfattande förståelse av API-ramverkslandskapet och underlätta val av ramverk baserat på specifika projektbehov.

This thesis focuses on the mining of cryptocurrency with emphasis on analysis of communication between miner and server. It describes basic principles of cryptocurrencies, mining and employed communication protocols. The next part of thesis is about design and implement modification of existing system (catalogue). This modification will add temporality to the catalog, what increase reliability of stored metadata. Description, functionality and purpose of existing system is included in the next text.

This thesis is focused on Bitcoin forensic analysis. Main goal of this thesis was to design and implement system tool for forensic analysis. Theoretical part of this thesis is dedicated to Bitcoin network. Requirements and existing tools are described in following chapters. Rest of the thesis is concerned about implementation of such a tool itself. Implemented system is presented as web application, which allows user to search through blockchain, vizualize financials, display profile pages of Bitcoin users and their Bitcoin wallets.

This independent work includes refactoring a website application. In simpler sense, it means modernizing existing code by increasing its quality and making it more understandable; to exchange old knowledge of methods and concepts into something that is more relevant to its time. This refactoring has also meant to transform the UI into something that is more appealing, and more userfriendly. The website that has gone through the refactoring is Nordyr (”https://nordyr.com/”). Nordyr is a Nordic Film & Series Database that shares information about Nordic films and tv-series, and everyone involved. They also offer social tools such as user profiles and various tools to simplify the exploration and interaction between Nordic movies and consumers. This was made possible by using vanilla PHP, JavaScript/jQuery, and the MariaDB database for information storage and management. The implementation of the refactoring meant retaining PHP for the backend, but applying the Laravel framework, and likewise for JavaScript, but applying ReactJS (a powerful JavaScript library). Nordyr retains MariaDB for its information storage and management, however, its SQL queries have been adapted to Laravel’s query-builder and Eloquent ORM, which means that the majority of SQL queries have been rewritten and the majority of data tables are now represented by models. The restructuring of Nordyr has shown that the website now has the ability to scale better, and the development environment will also be more pleasant for those involved. / Det här självständiga arbetet har innefattat att omstrukturera en hemsida. Det innebär i enklare mening att modernisera kod och öka dess kvalité; att byta ut äldre kunskaper om metoder och koncept till något som anses vara av mer relevans för sin tid. Refaktoreringen har också inneburit att dess UI gjorts om till att bli mer tilltalande och användarvänlig. Hemsidan som gått igenom refaktoreringen är Nordyr (”https://nordyr.com/”). Nordyr är en Nordisk Film- & Serie-databas som delar information om nordiska filmer och tv-serier och alla inblandade. De erbjuder även sociala verktyg som användarprofiler och diverse verktyg för att förenkla upptäckandet och interaktionen mellan nordiska titlar och konsumenter. Detta gjordes möjligt med hjälp av vanilj PHP, JavaScript/jQuery, och databasen MariaDB för informationslagring och hantering. Genomförandet av refaktoreringen innebar att behålla PHP för backend men tillämpa ramverket Laravel, och likaså för frontend, JavaScript stod kvar men ReactJS (”JavaScript bibliotek”) tillämpades. Nordyr behåller MariaDB, men dess förfrågningar i SQL har anpassats till Laravels query-builder och Eloquent ORM, vilket innebar att majoriteten av SQL frågor skrivits om och majoriteten av tabeller representeras nu av modeller (”Models”). Omstruktureringen av Nordyr har visat på att hemsidan nu har förmågan att skala bättre, och utvecklingsmiljön kommer även bli mer behaglig för de inblandade.

This master thesis deals with the topic of risk management and explains its importance during project management in IT projects. It descibes every phase of the risk management life cycle and also methods and procedures used in each phase. After that the thesis focuses on decision analysis, mainly on decision trees and Monte Carlo simulation. The last part contains the design of an application for risk management and visualization. Prototype of this system has been implemented based on this design in PHP framework Laravel. Details of the implementation and testing are in the next part of this thesis. In the end there is an assessment with discussion of possible expansions.

The goal of this thesis is to explore existing solutions of closed and open data sharing, propose options of sharing non-public data, implement selected solution and demonstrate the functionality of the system for sharing closed data. Implementation output consist of a catalog of non-public datasets, web application for administration of non-public datasets, application interface gateway and demonstration application.