This master's thesis is focused on description of possible types of e-learning systems as the modern way of education and its support using computer technology, its components and methods assessment used for educational systems creation and the most accessible and most convenient method for creating elearning selection. On the basis of obtained knowledge was created an educational system using PHP and AJAX technology. The main objective of this thesis is the development of e-learning system with accurate requirements for its functionality and description of the method of achieving the desired properties of individual parts of the system.

This master's thesis deals with ways and options to automatically generate three-dimensional models from two-dimensional data within web browsers, especially buildings and map objects. As part of this thesis, an application was designed and implemented to simplify the creation of detailed building models and to display additional and adequate real-time data on mobile devices as well.

While more and more applications are moving from the desktop to the web, users still expect their applications to behave like they did on the desktop. Specifically, users expect that user interface state is preserved across visits, and that the state of the interface truly reflects the state of the underlying data. Unfortunately, achieving this ideal is difficult for web application developers due to the distributed nature of the web. Modern AJAX applications rely on asynchronous network programming to synchronize the client-side user interface with server-side data. Furthermore, since the HTTP protocol is stateless, preserving interface state across visits requires a significant amount of manual work on behalf of the developer. CloudBrowser is a web application framework that supports the development of rich Internet applications whose entire user interface and application logic resides on the server, while all client/server communication is provided by the framework. CloudBrowser is ideal for single- page web applications, which is the current trend in web development. CloudBrowser thus hides the distributed nature of these applications from the developer, creating an environment similar to that provided by a desktop user interface library. CloudBrowser preserves the user interface state in a server-side virtual browser that is maintained across visits. Further- more, multiple clients can connect to a single server-side interface instance, providing built-in co-browsing support. Unlike other server-centric frameworks, CloudBrowser's exclusive use of the HTML document model and associated JavaScript execution environment allows it to exploit existing client-side user interface libraries and toolkits while transparently providing access to other application tiers. We have implemented a prototype of CloudBrowser as well as several example applications to demonstrate the benefits of its server-centric design. / Master of Science

Functional programming offers an accessible and powerful algebraic model for computing. JavaScript is the language of the ubiquitous Web, but it does not support functional programs well due to its single-threaded, asynchronous nature and lack of rich control flow operators. The purpose of this work is to extend JavaScript to a language environment that satisfies the needs of functional programs on the Web. This extended language environment uses sophisticated control operators to provide an event-driven functional programming model that cooperates with the browser's DOM, along with synchronous access to JavaScript's asynchronous APIs. The results of this work are used toward two projects: (1) a programming environment called WeScheme that runs in the web browser and supports a functional programming curriculum, and (2) a tool-chain called Moby that compiles event-driven functional programs to smartphones, with access to phone-specific features.

Det finns idag få system som ger en god överblick av en restaurangs bokningar och bordsplaceringar. Oftast används papper och penna som ställer till med problem när kunder avbokar, ändrar deras bokning eller helt enkelt inte kommer till restaurangen. Det är även svårt att avgöra huruvida restaurangen är fullbokad eller ej. Denna rapport behandlar utvecklingen av ett webbaserat bordsbokningssystem för restauranger på uppdrag av en restaurangägare i Jönköping. Systemet ska ge en grafisk överblick av en restaurangs bokningar och hur alla bord ska stå placerade under en kväll. Då systemet webbapplikationen ska ha flera användare, som använder olika enheter, krävs det att systemet ska vara plattformsoberoende. Med hjälp av HTML5 undersöks det huruvida det går att göra detta system offlinekompatibelt, då uppdragsgivaren önskar att systemet är åtkomligt då Internetuppkopplingen försvinner. Det undersöks även hur en applikation görs användarvänlig och lättmanövrerad samt hur kommunikationen mellan klient och server görs mest effektivt. Projektet är uppdelat i fyra delar; grafiskt användargränssnitt, webbapplikation, datahantering och serverkommunikation, som i sin tur är indelade i två kategorier; klient och server. De två kategorierna användes som en bas för hela projektets gång, från litteraturgenomgång och forskning till implementation. Den slutliga webbapplikationen blev ett plattformsoberoende och offlinekompatibelt bordsbokningssystem, där användaren får en grafisk överblick av en vald dags bokningar samt bordsplaceringar.

This study investigates the applicability of node.js for developing web services.Node.js is a software platform for developing event-driven networking applicationsusing JavaScript. Moreover, the language JavaScript is discussed regardingfeatures that facilitate development of event-driven software.Node.js’s selling point is to be a solution to the problem of massive amount ofconcurrent network connections. In addition, it tries to avoid scalability issuesthat may appear in large web applications. To verify and investigate if this holds,an evaluation of the platform was conducted by developing an HTTP boot serverfor Motorola Mobility. The boot server, named Wellington, is used to manageconfiguration and distribution of set-top box software.Furthermore, an investigation and comparison between event based and threadedconcurrency models has been made. Lastly, the maturity of node.js and its ecosystemof libraries and frameworks are discussed.In conclusion, node.js is an interesting piece of technology and it was suitableas development platform for Wellington. JavaScript is a powerful language andworks well to write event-driven server-side software. When learning to buildnetworking applications, node.js is a good start to do so using an event-drivenparadigm.

These thesis analyses the extensions of the "Ketris" system used by the State institution of the "Regitra" which allow automating the actions of checking the declarable income and writing certificates.

GraphQL is a query language for web APIs and a service for carrying out server requeststo interact with the data from the API. Research show that even for simple GraphQL queriesboth the size of the response object and the execution times to retrieve these objects may beprohibitively large and that current implementations of the language suffers from this issue.This thesis explores the implementation of an algorithm for calculating the exact size of theresponse object from a GraphQL query, and the performance based evaluation of the implementation. A proof of concept of a server using the implementation of the algorithm and subsequent tests of thecalculation times for particularly problematic queries sent to the server, show that the implementationscales well and could serve as a way to stop these queries from executing.

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Denna rapport behandlar projektarbetet som utförts för att skapa en interaktiv kart-applikation hos företaget eMaintenance365. De är ett uppstartsföretag som arbetar med att hjälpa kunder inom främst tåg- och järnvägsindustrin med att förbättra sitt underhållsarbete. De erbjuder analyser av mätdata genom sin egenutvecklade molnbaserade webbapplikation E365 Analytics® och avancerade algoritmer som kan förutspå kommande underhållsbehov. Inom applikationen fanns behov av en interaktiv karta där kunderna kan se status på olika mätstationer, tågrälssträckor och så vidare. Syftet med projektet har varit att få fram en applikation som är robust, dynamisk, välstrukturerad och konstruerad med skalbarhet, vidareutveckling och underhåll i åtanke. Projektet kan i framtiden leda till stora besparingar gällande både tid och pengar. Applikationen har programmerats i JavaScript med tredjepartsbiblioteket OpenLayers 4 för interaktiva kartor som grund. För att få en robust applikation som underlättar framtida vidareutveckling, underhåll med mera så har ett vedertaget designmönster använts som ger en mer modulär struktur på koden. Konstruktionskapitlet beskriver bland annat vilka dessa modulär är och den funktion de har samt övrig funktionalitet som skapats i applikationen. Projektet har resulterat i en applikation som har en hel del dynamisk funktionalitet och når upp till de mål som satts upp vid projektstart. Det finns mycket utrymme för vidareutveckling och optimering av applikationen som på grund av vissa begränsningar och tidsbrist ej kommit med i projektet.