Issue tracking is one of the vital parts in maintaining computer  systems.  It is utilized in anything from small independent companies to large enterprises. The tracking does not just provide developers and other personnel with crucial information regarding their systems current state, but additionally stores useful documentation if any error reoccurs in the future. However, if the tracking issue would be deficient in some way, the complete process of developing or maintaining a system could affected negatively in great extent. This thesis work has looked into a scenario where the tool has been to slow, overly complicated and obsolete. It has made a large negative impact on the work force that uses the tool and made tracking issue to a discouragement. The thesis work has thence investigated features of the existing tool, suggested a better solution to use based upon these findings, followed by the development of a web application. When the application was finished, its usability was tested by the intended staff and performance tests were conducted. The test results showed that the application had been implemented successfully in many aspects. Unfortunately, due to deficient technical choices, the project did struggle with implementing all features as expected. The thesis work did consequently learn the hard way the importance of a choosing development techniques very thoroughly.

This Diploma thesis deals with creation of web application, REST API, SDK for Android and iPhone platform and example application for these two platforms. The first part of work analyses the current application interfaces. The second part describes the selected technologies and implementation.

The objective of this thesis is analysis, design and development of an application used for the Process-State Diagram (PSD). Purpose of this thesis is to make PSD tool available for as many users as possible in order to make it a standard tool for managers and analysts. The theoretical part analyzes the basic functionality that should be included in the first version of this app and the strategy and the method of implementation. An important part of the analysis is to compare the three types of applications: desktop, web and mobile; and their relevance to a given problem. The practical part includes the actual implementation and the necessary steps to deploy the application.

The aim of my thesis is to provide a collection of examples about document oriented MongoDB database using Node.js platform, specifically using the Mongoose program, for object-document mapping (ODM). The aim is met by analysis of Mongoose and Async module, which provides functions for more comprehensive asynchronous querying, needed for working with input/output to the MongoDB database in Node.js. The main merit of this thesis is (in the general sense) a demonstration of how to create a administration part of web application (backend) in Node.js, applying document oriented MongoDB database. The thesis discusses, in the theoretical part, about characteristics and significance of document oriented MongoDB database, about characteristics and architecture of Node.js platform employing untyped and multiplatform JavaScript language and about object document mapping (ODM) programs for Node.js on MongoDB. The practical part contains a collection of examples, where in the first chapter introduces an instalation and execution manual of necessary programs. The next chapter is dedicated to simple examples of Mongoose module and in the last chapter there are stated the complex examples of Mongoose and Async modules, which are the main merits of this thesis.

The aim of this diploma thesis is to implement a presentation layer for the Reminiscence Computer Therapy application. Reminiscence Therapy involves the discussion of the past memories and it is believed to help people with dementia to improve their well-being and sustain their memories. Computer Reminiscence Therapy involves technology in this therapy. The research introduces into Dementia and Reminiscence Therapy with and without using technologies. The application developed as part of this diploma thesis uses picture upload and speech recognition techniques for the memory input. This is used to support remembering of past memories and to increase discussion. The application can be used with or without the carer as well as with friends and family members. The six most important requirements on the developed application are the speech recognition, picture upload, asking questions about the previous recordings, asking questions about tagged friends, using old stories for discussion and presenting the statistics. The application was developed as a part of the competition made by AngelHack organization. Presentation, business and persistence layers of the application are discussed in this diploma thesis as well as user manual and persistence layer implementation of the requirements. The presentation layer was developed using React framework for JavaScript. Other libraries have to be used as well with the most important being Redux library for storing application state. This library affected the structure of the persistence layer.

Thesis is focused on design and implementation of web application called Obecní fórum. The goal is to create a business case for this project, application design and to implement the entire application and place it on a public webhosting with on-site configuration for life publishing. Application design is based on a structure of MMDIS methodology, created by the Department of Information Technologies at the University of Economics, Prague. Implementation is based on web technologies, such as PHP, HTML, CSS, JavaScript and Ajax.

One of the latest tools in the strive troughwards a fast and secure Web is called WebAssembly. It is a low-level, assembly-like language that can run in the browser alongside JavaScript. WebAssembly is designed to load fast and aims to execute at near-native speed. Being a compilation target for system languages like C, C++, and Rust, WebAssembly is not very accessible from a Web developer perspective. This project explores ways to generate WebAssembly directly from JavaScript code, in order to lower the learning curve, and allow for a more widespread adoption of WebAssembly. This has resulted in a utility tool called Esmbly, which can turn simple JavaScript programs into WebAssembly binaries by collecting and utilizing type information from various flavours of statically typed JavaScript.

The motivation for this work has been to develop a web platform for a game concept where the underlying code acts to enable users to customize their game markers and place orders for them. This report deals with the creation of this website that in itself is not a webstore in classical terms but rather offers a process of it’s own for users to pick the looks of a product, place it in a cart and pay for it. The website communicates with an external payment processor that has been implemented. The process also includes prepatory work and the handeling of graphics and both client and server-side coding. The report covers the programming of the website and speculates in its application of usability standards from evaluating of user tests. / Motivationen för detta arbete har varit att ta fram en webbplattform för ett spelkoncept där kodningen ligger till grund för användare att personanpassa sina spelmarkörer och beställa dem. Denna rapport avhandlar skapandet av denna webbsida som i sig skiljer sig från en webbutik i klassisk bemärkelse och istället erbjuder en egen process för att välja utseende på varor, placera dem i en kundkorg och betala för dem. Webbsidan kommunicerar med en extern betalningslösning som är implementerad på sidan. I arbetet ingår förutom förarbete även hanterandet av bildmaterial och både klient- och serverbaserad kodning. Rapporten täcker framtagandet av tekniken för webbsidan och spekulerar i dess anpassning till användarriktlinjer och olika användartyper efter utvärderingar baserade på genomförda tester.

Context - Software applications on the web are more commonly used nowadays than before. As a result of this, the performance needed to run the applications is increasing. One method to increase performance is writing multi-threaded code using Web Workers in JavaScript. Objectives - We will investigate how using Web Workers can increase responsiveness, raw computational power and decrease load time. Additionally, we will conduct a survey that targets software developers to find out their opinions about performance in web applications, multi-threading and more specifically Web Workers. Realization (Method) - We created three experiments that concentrate on the areas mentioned above. The experiments are hosted on a web server inside an isolated Docker container to eliminate external factors as much as possible. To complement the experiments we sent out a survey to collect information of developers' opinions about Web Workers. The criteria for the selection of developers were some JavaScript experience. The survey contained questions about their opinions on switching to a multi-threaded workflow on the web. Do they experience performance issues in today's web applications? Could Web Workers be useful in their projects? Results - Responsiveness shifted from freezing the website to perfect responsiveness when using Web Workers. Raw computational power increased at best 67% when using eight workers with tasks that took between 100 milliseconds and 15 seconds. Over 15 seconds, sixteen workers improved the computational power further with around 3% - 9% compared to eight workers. At best the completion time decreased with 74% in Firefox and 72% in Chrome. Using Web Workers to help with load time gave a big improvement but is somewhat restricted to specific use cases. Conclusions - Using Web Workers to increase responsiveness made an immense difference when moving tasks that is affecting the users responsiveness to background threads. Completion time for big computational tasks was quicker in use cases where you can split the workload to separate portions and use multiple threads in parallel to complete the tasks. Load time can be improved with Web Workers by completing some tasks after the page is done loading, instead of waiting for all tasks to complete and then load the page. The survey indicated that many have performance in mind and would consider writing code in a multi-threaded way. The knowledge about multi-threading and Web Workers was low. Although, most of the participants believe that Web Workers would be useful in their current and future projects, and are worth the effort to implement.

This report describes a website that will be created for alsunnah. Alsunnah is a private non-profit organization that helps the Muslims living in Sweden especially the Muslims living in the Östergötland region with the help of knowledgeable young who have different knowledge to teach people their culture in the right way. The task of this report is to create a responsive website that presents their work in different ways. The working environment and tools that will be used are HTML5, CSS3, Javascript, Jquery, PHP with mysqli server as database which will build all types of tables that belong to the site and with the help of various literature books and lectures that were during the web development learning. / Den här rapporten beskriver en webbplats som kommer skapas åt alsunnah. Alsunnah är ett privat ideella organisation som hjälper de muslimerna som bor i Sverige framför allt de muslimerna som bor Östergötland region med hjälp av kunniga ungar som har olika kunskaper för att lära folk deras kultur på rätt sätt. Uppgiften i den här rapporten är att skapa ett responsiv webbplats som presenterar deras arbete på olika sätt. De arbetsmiljö och verktyg som kommer användas är HTML5, CSS3, Javascript, Jquery, PHP med mysqli server som databas som kommer byggas alla typer av tabeller som kommer tillhöra webbplatsen samt med hjälp av olika litteratur böcker och föreläsningar som var under utbildningen.