This diploma thesis describes a possibility of application protocol implementation in OPNET Modeler simulation environment. It presumes that this application protocol is going to use TCP protocol for their communication on transport layer. The first part of thesis is focused on a description of TCP. It is a connection oriented, reliable and confirmed protocol which maintains sequence of transmitted data. This data is after receiving positively confirmed. In the second chapter are described the main functions of OPNET Modeler simulation environment. OPNET is hierarchical divided into four editors. Each editor has a specific function by creating a network and setting his behavior. There is also focused on the two lowest layers of OPNET Modeler and their components in detail, which are participating at usage TCP on transport layer to communication. Implemented applications communicate by sockets, which are created and destroyed on request. Communication is controlled by manager process, whose function is maintenance particular connections and redirect dataflow into relevant process. This manager put in action as well a process, which simulates a single TCP. In the practical part I made two applications: one is a client type and a second one is a server type. Both applications are using TCP on transport layer. The establishment of connection initiates a client, who is sending a request to the server for a data. Then server sends back data in desired quantity. After sending the entire data, client terminates the connection. The result of simulation is statistics, where we pictured the size of the transferred data, a number of transferred packets and other parameters typical for TCP.

Möjligheterna på webben blir hela tiden större. Teknologier för webbaserade spel börjar dyka upp som tillåter animationer och realtidskommunikationskrav till den standard som spel gjorda för desktops idag har. I detta arbete testas WebRTC och Websockets mot varandra för att ta fram underlag för vilken lösning som presterar bäst i olika scenarion. Ett experiment utfördes och resultatet pekade på att WebRTC klarade av fler scenarion bättre än Websockets till en nivå som relaterad forskningslitteratur pekar på är acceptabla nivåer av nätverksfördröjning för att uppnå kraven för realtidskommunikation. Experimentet gick ut på att simulera nätverksfördröjning vid olika antal samtida användare i ett webbaserat spel. För framtida arbete spekuleras det kring användning av andra webbläsare, enheter och kopplingar till Internet of all things.

The goal of this study is to research the disparities in character positions between clients and server when playing an online game. The data needed was gathered by letting three players play a game made by me against each other, using extrapolation methods like the Kalman Filter on the characters’. During the play-through each client saved all characters positions together with the input made by the players. The clients logged the information every network update, in synch with the server. When the time came, all clients sent their information to the server, where it was collected, analyzed and compared with the information the server had registered. By calculating the difference in position of the server and clients characters, a disparity value could be extracted. This value is what was used to calculate a disparity value between the server characters and all clients’ counterparts. The same value is also what was used to answer the questions on how much impact the different extrapolation methods have on a game, as well as how big of an impact input made have on the delay of the game. An important part of the study was to make sure that the information gathered was collected at the same time on the clients and the server, as well as to be able to enable and disable parts of the methods. Therefore the whole game used in this dissertation was built focused on this study. All extrapolation methods are toggle-able and the information gathered is synched using time.windows.com.

The main objective of this thesis work is to develop communication link between Runrev Revolution (IDE) and JADE (Multi-Agent System) through Socket programming using TCP/IP layer. These two independent platforms are connected using socket programming technique. Socket programming is considered to be newly emerging technology among these two platforms, the work done in this thesis work is considered to be a prototype.A Graphical simulation model is developed by salixphere (Company in Hedemora) to simulate logistic problems using Runrev Revolution (IDE). The simulation software/program is called “BIOSIM”. The logistic problems are complex, and conventional optimization techniques are unlikely very successful. “BIOSIM” can demonstrate the graphical representation of logistic problems depending upon the problem domains. As this simulation model is developed in revolution programming language (Transcript) which is dynamically typed and English-like language, it is quite slow compared to other high level programming languages. The object of this thesis work is to add intelligent behaviour in graphical objects and develop communication link between Runrev revolution (IDE) and JADE (Multi-Agent System) using TCP/IP layers.The test shows the intelligent behaviour in the graphical objects and successful communication between Runrev Revolution (IDE) and JADE (Multi-Agent System).

This diploma thesis deals with design and implementation of a network application for monitoring of computers for a chosen company. The application allows administrators to automate the gathering of hardware and software information. The purpose of the application is also to monitor hardware values, such as processor temperature or harddisk free space. The design uses client-server architecture. Three applications were created: server, client and graphical management console.

Denna rapport redogör för utvecklingen av en applikation som används för att konfigurera integrationer som används av av Sigma Integration Architecture (SIA). Applikationen är riktad till Sigma-personal som inte är vana vid denna integrationsarkitektur, då den tillhandlahåller användaren med en rad olika hjälp-element för att underlätta konfigurationensprocessen och sänka tröskeln för att kunna skapa och redigera integrationer. Genom att använda Javas reflection API i kombination med dynamic proxies, kan applikationen utföra validering och simulering av integrationer innan de används i produktion. Vi innefattar även cache-metod för att snappa upp processen, och påvisar även testverifikation av cache-processen. Applikationen är utvecklad som två separata delar, bestående av en back end skriven i Java, och en webbaserad front end skapad med AngularJS. / This report describes the development of an application used to configure integrations used by Sigma Integration Architecture (SIA). The application is aimed towards Sigma personnel unfamiliar with the integration architecture, as it provides the user with various help elements in an effort to ease the configuration process and lower the entry barrier for creating and editing integrations. Using Java's reflection API in combination with dynamic proxies, the application is able to perform validation and simulation of integration pipelines before they are used for production. We also include a cache mechanism to speed up the process, and provide experimental verification of caching performance. The application is developed as two separate parts, consisting of a back end written in Java, and a web-based front end created with AngularJS.

This thesis deals with the issue of attendance recording. The aim of the thesis was to design a solution and then create a hardware terminal for the electronic attendance system. The whole system is based on the latest web technologies using the Raspberry Pi hardware, for the client terminal. Future use of the device is possible for both home and commercial use. The whole system was distributed globaly as Open Source project. The result of thesis is a physical prototype of a client terminal, based on the Raspberry Pi platform, Electron based application for terminal and a web application communicating with the server solution.

This diploma thesis is about real estate market comparative appraisement, statistical approach and how to use software for data gathering and processing in its practical part. Practical part also includes draft of appraising algorithm. In the end of practical part, there are check of application's output and comparison of computed prices to both real traded prices and advertisement prices.

This Master’s thesis deals in detail with the SIP protocol – a method of communication between two entities, various types of transmitted messages and their content. Few SIP libraries are introduced and two of them are used for development of an application for audio/video conference-calls. Compilation of OPAL and PTlib libraries for Windows 7 Professional (64bit) is described, and problems resulting from lack of information provided by authors. New improved “how to build” is presented. At the end, paper focuses on several ways of development of mentioned application.

Main goal of this thesis is to create forex automated trading system with possibility to add trading strategies as modules and implementation of trading strategy module based on neural networks. Created trading system is composed of client part for MetaTrader 4 trading platform and server GUI application. Trading strategy modules are implemented as dynamic libraries. Proposed trading strategy uses multilayer neural networks for prediction of direction of 45 minute moving average of close prices in one hour time horizon. Neural networks were able to find relationship between inputs and output and predict drop or growth with success rate higher than 50%. In live demo trading, strategy displayed itself as profitable for currency pair EUR/USD, but it was losing for currency pair GBP/USD. In tests with historical data from year 2014, strategy was profitable for currency pair EUR/USD in case of trading in direction of long-term trend. In case of trading against direction of trend for pair EUR/USD and in case of trading in direction and against direction of trend for pair GBP/USD, strategy was losing.