Vad många inte tänker på då de har ett relativt avancerat olinjärt system som de linjäriserat till ett tidskontinuerligt styckvis affint system är att det inte är helt självklart och enkelt att hantera detta system. Eftersom vi i de flesta fall vill kunna hantera ett angivet system med datorkraft, och därmed måste sampla systemet, behöver vi kunna beskriva ett samplat tidskontinuerligt styckvis affint system med ett tidsdiskret system. Vid första anblicken av detta problem kan det verka ganska enkelt. Vad många gör är helt enkelt att skapa en tidsdiskret beskrivning för varje mod i det styckvis affina systemet var för sig och behålla de gamla modgränserna. Detta visar sig dock kunna ge ett felaktigt uppförande hos systemet.

Uppsatsens syfte är att undersöka en svensk investerares möjligheter till internationell diversifiering. I vår undersökning vill vi undersöka om möjligheten förändrats de senaste decennierna och om det med effektiva investeringsstrategier går att lyckas bättre än med en inhemsk placeringsstrategi. Metoden vi använt för att utreda om möjligheterna till diversifiering har förändrats är genom att undersöka om korrelationen mellan våra 20 utvalda I-länder förändrats mellan perioden 1993-1998 och 1999-2006. För att undersöka magnituden av nyttan med internationell diversifiering har vi valt att på ex ante basis skapa ett flertal effektiva portföljer bestående av tillgångar från våra länder och sedan investerat efter dessa vikter på ex post basis. De strategier vi valt är minsta variansportföljer och tangentportföljer.

A new system of public transportation that can simplify and shorten the trips made throughout the city, anddo that both cheap and environment-friendly. Sounds like good news. This new system, though, require anall new type of infrastructure, differing from what we are used to see in our cities. Podcar, or PRT, as thesystem is called can become a transport revolution, possibly. If that revolution does happen it is crucial that webeforehand have studied the possible effects it can cause on our city environment, from a spatial point of view.This thesis thoroughly describes the function and essence of the PRT system and presents what is availabletoday and in what forms.

Integration av system har varit ett aktuellt område under de senaste åren. Det har då främst handlat om integration av system internt på företag. En av anledningarna till det stora intresset av web services är möjligheterna att integrera olika system, exempelvis stordatorbaserade och Windowesbaserade system med varandra. Web services handlar om att kunna integrera system, både internt på ett företag och externa mellan olika företags olika typer av system. Allt detta görs via Internet och bygger på att man utgår i från standards när man bygger web services.

Uppsatsen undersöker den svenska marknaden för CRM-system utifrån faktorer som företagskategori, kundrelation, befintligt kundrelationsstöd m.m. Vilka funktioner i ett system som företagen uppskattar mest undersöks också samt hur faktorer typiska för mjukvara påverkar situationen.Resultaten visar att det finns ett behov bland små och medelstora företag för CRM, dock inte för alla företag. Många företag använder egenutvecklade system, kanske för att de kommersiella systemen inte motsvarat deras behov. Funktionsmässigt uppskattades grundläggande funktioner mest, och fördelningen mellan CRM-områdena var jämn. Gällande mjukvarukaraktäristik ser företagen funktionaliteten som den primära faktorn i deras val av CRM-system.Det är en klar fördel att kunna erbjuda ett system på det nationella språket..

This document is a summary of my work to create a project management system for a small firm working with computer graphics. The intention is to manage customers, projects, images and invoices in the easiest possible way. To make the system as flexible as possible a web-interface was chosen which makes it possible to access the system from any computer, making it independent of any particular operating system. The only requirement on the user environment is that the computer must have a connection to the Internet to be able to access the system. The different techniques that have been used to develop the project management system is primarily Ruby on Rails and a MySQL database. Although Ruby on Rails was completely new to me, I decided to use this framework instead of PHP, which I already have a good knowledge of, because of the benefits Ruby on Rails provide.

Within system development users have rarely been involved or received much attention during the development. Most of the times, the primary focus within system development lies on insuring functionality, rather than making the system usable. The literature specifies that a non user-centered approach can contribute to a product with low usability, which can lead to an ineffective and unsatisfactory experience for the end users.The purpose of this thesis is to begin an investigation to see if the use of non user-oriented system development methods is a possible cause of low usability in the final system.To achieve the purpose of this thesis, we have conducted a case study. Within the case study we examined the usability of a time reporting system. The case study included seven minor studies; an investigation concerning the development of the system, an expert evaluation of the system, interviews and observations of users, developed paper prototypes and executable prototypes, both which user testing was performed on.The result of this study shows that by working with user-entered methods, the usability in the time reporting system increased after the design had been revised.

The purpose of this essay has been to answer the question of whether or not administrators of economic support perceive that their professional status is ranked lower than that of their coworkers in other fields of the social services. We set out to study whether or not their comparative status differed depending on their use of standardized assessment instruments and if their experience with regards to professional status differed depending on the size of the municipality they worked in. We also wanted to determine in what way (if any) the comparative status manifests itself and what factors influences it.We?ve utilized method triangulation in order to answer the questions posed in our purpose. The quantitative study was conducted using a questionnaire and the qualitative with three interviews.

Shareholder value has its origin in the American corporate governance system and has been the subject of great debate over the last few decades. The proponents claim that it creates economic efficiency while the critics argue that maximization of shareholder value jeopardizes the long term survival of companies. However, the debate in Sweden already seems to have forgotten the question of how embedded the ideology really is and what´s leading its way. This study show that shareholder value has developed and been established in Swedish companies between 1995 and 2005. The study has found evidence that suggests that the development can primarily be linked to board networks and international exposure.

In industrial control systems PID-control remains the prevalent strategy, also for processes that would benefit from model based control. The purpose of this thesis is to evaluate whether model based control can be readily implemented in an industrial control system. To this end a simulated surge tank with a simulated industrial control system is studied. For evaluation two scenarios with specified objectives are selected.Following a review of LQR and versions of MPC, Predictive Functional Control (PFC) is considered the most suitable for implementation. PFC is a form of MPC developed with industrial applications in mind and therefore has several advantages for implementation in an industrial control system.

The concept of vulnerability is the capacity or the sensitivity to become damaged. Vulnerability are characterized by one or more of the following terms; a system´s sensitivity to exposure to shock, stress or interference, the state of the system in relations to a threshold of damages, and the system´s ability to adapt to the changing circumstances. Vulnerability in this study is referring to the sensitivity of the circumstances that lead to sustainable livelihood that can´t be maintain and that there is an inability to cope with and manage stress. The choice of making a study in this area is based on that action needs to be taken to moderate the vulnerable aspects of society, in this respect in relations to storms. Analyzes of the social vulnerability to climate change or natural events is needed for effective actions.

The mainpart of this thesis is about the developing of a new analysis tool to be used in Zenicor Medical Systems AB ECG-system. The primary task of the system is to simplify the ECG survey for patients who suffers from different kinds of arrythmias, for example heart fibrillation. With this system is it possible for the patients to do their ECG survey by them self at home and then send the signal with their telephone or mobilphone to a server. The equipment used to do the survey is not bigger than you can have it in a pocket and this results in a bigger flexibility for the patient. A doctor can connect to the server and analys the ECG-curve and follow up the patients condition..

This thesis describes the process of developing a reservation system for common resources through a TV-interface. The system is developed in cooperation with the company Dreampark and is built to work in their platform for TV, Dreamgallery. The main goal was to develop a reservation system and to make it work with Dreamgallery, to develop a demonstration version of the system. The thesis describes the approach for developing an easy-to-use and customisable program and interface for making reservations. How this is inserted into an existing program in a suitable way.

The economic development and industrialization that has taken place in many parts of the world during the past century has brought about a huge increase in economic welfare. During this process, it has repeatedly been debated whether the gains from economic development are shared by everyone or just a few. In the field of economics, vast research has been conducted on this particular subject ever since the 1950?s. The most famous contribution might be said to be Simon Kuznets article, Growth and Income Inequality from 1955 and the ?inverted U?-hypothesis that was formulated on the basis of that article.

Sweden's government says in the bill 2008/09: 140 that military service should be suspended and replaced with a system based on voluntary recruitment. In the essay, I will make an argument analysis of the parliamentary debate on the bill from the 12th of June 2009 with the following questions: On what is the different side?s argument based on? Are the arguments essentially and factually substantiated? Is there a clear political party tendency among the for-/counter arguments? The method is a "Pro et contra" analysis, a logical systematization of the arguments. The analysis will take start in the headline; Conscription should be suspended in favour of a voluntary system based on contract employed soldiers. The presentation of arguments in the analysis will be guided by the chronological order.