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Autonomous Vehicles (AVs) should result in tremendous benefits to safe human transportation. Recent reports indicate a global average of 3,287 road crash related fatalities a day with the blame, in most cases, assigned to the human driver. By replacing the main cause, AVs are predicted to significantly reduce road accidents -- some claiming up to a 90% reduction on US roads. However, achieving these numbers is not simple. AVs are expected to assume tasks that human drivers perform both consciously and unconsciously -- in some instances, with Machine Learning. AVs incur new levels of complexity that, if handled incorrectly, can result in failures that cause loss of human life and damage to the environment. Accidents involving SAE Level 2 vehicles have highlighted such failures and demonstrated that AVs have a long way to go. The path towards safe AVs includes system architectures that provide effective failure monitoring, detection and mitigation. These architectures must produce AVs that degrade gracefully and remain sufficiently operational in the presence of failures. We introduce Safe-AV, a fault tolerant safety architecture for AVs that is based on the commonly adopted E-Gas 3 Level Monitoring Concept, the Simplex Architecture and guided by a thorough hazard analysis in the form of Systems-Theoretic Process Analysis (STPA). We commenced the architecture design with a review of some modern AV accidents which helped identify the types of failures AVs can present and acted as a first step to our STPA. The hazard analysis was applied to an initial AV architecture (without safety mechanisms) consisting of components that should be present in a typical AV (based on the literature and our ideas). Our STPA identified the system level accidents, hazards and corresponding loss scenarios that led to well-founded safety requirements which, in turn, evolved the initial architecture into Safe-AV. / Thesis / Master of Applied Science (MASc)

The demand for higher education has increased dramatically in the last decade. At the same time, institutions have faced continual pressure to reduce costs and increase quality of education, while delivering that education to greater numbers of students. The introduction of software systems such as virtual learning environments, online learning resources and centralised student record systems has become routine in attempts to address these demands. However, these approaches suffer from a variety of limitations: They do not take all stakeholders' needs into account. They do not seek to reduce administrative overheads in academic processes. They do not reflect institution-specific academic policies. They do not integrate readily with other information systems. They are not capable of adequately modelling the complex authorisation roles and organisational structure of a real institution. They are not well suited to rapidly changing policies and requirements. Their implementation is not informed by sound software engineering practises or data architecture design. Crucially, as a consequence of these drawbacks such systems can increase administrative workload for academic staff. This thesis describes the research, development and deployment of a system which seeks to address these limitations, the Module Management System (MMS). MMS is a collaborative web application targeted at streamlining and minimising administrative tasks. MMS encapsulates a number of user-facing tools for tasks including coursework submission and marking, tutorial attendance tracking, exam mark recording and final grade calculation. These tools are supported by a framework which acts as a form of “university operating system”. This framework provides a number of different services including an institution abstraction layer, role-based views and privileges, security policy support integration with external systems.

Neste trabalho, foi estudado o desempenho de um sistema constituído de torres de resfriamento e a sua integração em uma planta industrial de hidrogenação de butadieno. Caracterizou-se o desempenho das torres de resfriamento com base em um modelo fenomenológico, cujos parâmetros foram obtidos a partir da medição de variáveis operacionais reais. O processo de hidrogenação foi configurado em um simulador de processos, sendo o caso base estabelecido nas condições de projeto. Elaborou-se um módulo específico referente às torres de resfriamento, que foi integrado ao processo configurado no simulador. Em seguida, analisaram-se as interações das condições operacionais da torre de resfriamento no desempenho do processo industrial. / In the present work, the performance of a system composed of a cooling tower integrated in butadiene hydrogenation plant was studied. An experimental investigation was made to characterize the cooling towers based on a phenomenological model and in real process conditions. The hydrogenation process was configured on a process simulator and design specifications were considered as base case. A cooling tower module was developed and integrated to the process simulator. The interaction of the cooling tower system and the plant operation was investigated.

The subject of the thesis is an process analysis in the company AiP Safe, Ltd. First, theoretical approaches and methods for organization and business process analysis are summarized. The best known modeling notations are also described. For the analysis of AiP Safe, Ltd. was chosen BSP method and for process modeling was chosen BPMN notation. The result of the work is a suggestion to establish strategic goals and strategies to achieve them, change in the organizational structure, optimization of selected processes, introduction of new metrics, introduction of new information system and recommendations based on the SWOT analysis.

The theme of the diploma thesis deals with the description and improvement of business process inside of the service company. The Goal is to formalize current state of business processes in the Czech division of international hardware producer and provide overall view on the processes for the company management. In the first section there is a company profile described by organisation chart, strategy, SWOT analysis and brief description of the internal information system. The middle part contains descriptive tables and Event-driven process chains of three main processes and their subprocesses. In the all processes there are identified few weaknesses that are the base for the last section. The final part suggests specific improvements to the weaknesses. It is author's proposals for solving difficulties inside of the processes. In conclusion all of the plans are grouped by every single role in the process.

Detta examensarbete har genomförts på Schenker Logistics AB där målsättningen har varit att analysera den nuvarande returprocessen och därefter presentera eventuella förbättringsförslag. Den information som ligger till grund för resultatet av detta arbete har införskaffats via observationer och intervjuer med de personer som arbetar i returprocessen. Analysen som utfördes resulterade i att ett flertal brister kunde identifieras i returprocessen. Alla dessa brister bidrog till att komplikationer uppstod vid returhanteringen av gods på Schenker Logistics AB. Några exempel på brister som identifierades är att gods som var i godkänt fysiskt skick, returnerades till Schenker Logistics AB utan angiven orsak till returleveransen. Dessutom dokumenterades inte skadeorsaker hos någon part i försörjningskedjan, vilket bidrog till att Schenker Logistics AB var ovetande om skadans uppkomst samt vem/vad som bidrog till att skadan uppstod. Ytterligare brister som kunde identifieras i returprocessen är att fraktsedlar med ett specifikt nummer ofta försvann, fraktsedlar som är synnerligen viktiga för att Schenker Logistics AB ska kunna hantera returgodset. Vidare identifierades brister i form av omotiverat antal hanteringsställen av returgodset både internt på Schenker Logistics AB men även externt. Detta utgör en risk till att returgodset kommer i kontakt med vanligt gods, men även att det kan uppstå fysiska skador på både returgodset och det vanliga godset. Utöver dessa brister finns det några fler som omnämns och förklaras mer i rapporten. De förbättringsförslag som presenteras i denna rapport innefattar förändringar som kan leda till att returprocessen på Schenker Logistics AB, men även i hela försörjningskedjan, blir mer kontrollerad och hållbar jämfört mot dagens situation. Förutom en halvering av antalet scenarier som uppstår på Schenker Logistics vid mottagandet av returgods, kan dessa förändringar även bidra till kostnadsbesparingar i form av hanteringskostnader och administrativa kostnader hos både Schenker Logistics AB och deras kund Shell. / This examination report has been carried out at Schenker Logistics AB where the objective has been to analyze the current return process and then to present possible improvements. In order to analyze the return process there was a necessity to obtain information of the present situation. The information has been acquired through observations and interviews with persons that work in the return process. The information that was obtained made it possible to analyze the return process. The analysis that was carried out resulted in identification of several shortcomings in the return process. Every of these shortcomings contributed to complications with handling of returns at Schenker Logistics AB. An example of a shortcoming that was identified is that undamaged goods were returned to Schenker Logistics AB without specified reason for the return delivery. Moreover, there was lack of documentation of damaged goods, which contributed that Schenker Logistics AB was unaware of what causes the damages. Additional shortcoming that could be identified in the return process is that waybills with a specific number often disappeared; waybills which are highly important to Schenker Logistics AB in order to handle the returned goods. Furthermore, several unjustified transportations of the return goods took place both internally at Schenker Logistics AB but also externally. This was a risk as the return goods could come in contact with ordinary goods; but also that it could contribute to physical damages on both the return goods and the ordinary goods. In addition to these shortcomings some more is mentioned and explained further in this report. The proposed improvements presented in this report include changes which can highly improve the return process at Schenker Logistics AB, but also in the entire supply-chain. The return process would most likely, after an implementation of the improvements, become more controlled and sustainable compared to today's situation. These improvement proposals can reduce the number of scenarios by half, scenarios that arise at Schenker Logistics AB when receiving the return goods. These changes can also contribute to saving in costs, in form of handling costs and administrative costs, at both Schenker Logistics AB and their customer Shell.

Most companies have a bottleneck in their production, that is a constraining re-source. When the demand is higher than the capacity in the constraining resource it is impossible to produce the demanded output. This problem leads to delayed deliveries, unhappy customers and ultimately to decreased revenue. Bottlenecks therefore has a significant role in production and must be handled thereof.MW Power in Sävsjö, Sweden designs and manufactures water and steam boilers for the customer's unique needs. MW Power invested in a new plasma cutting ma-chine but the machine has not reached the expected capacity. The capacity prob-lem is due to time consuming set-up times, machine care and material supply which makes the plasma cutting machines utilization rate 37.5 %.The study’s purpose aims to maximize the material flow through the plasma cut-ting machine. In order to answer the purpose, two thesis questions are used: “How can increased machine time in the plasma cutting machine be achieved?” and “How can the ma-terial flow to and from the plasma cutting machine be improved so that the actual capacity can be increased?”To answer the thesis questions, the study had a deductive approach in which ex-isting theories has been applied to real life case.In order to streamline the plasma cutting machine and the processes directly re-lated to it, the material flow upstream, the material flow through and the material flow downstream of the plasma cutting machine has been mapped and analyzed. In order to maximize the flow of material through the plasma cutting machine, setup times must be reduced to increase the capacity.The plasma cutting machine requires maintenance by the operator at regular basis where the nozzles and other consumables in the plasma cutting machine burner must be replaced. A SMED-analysis has been undertaken which shows that the internal set-up operations should be converted to external set-up operations. Re-placement of nozzles and consumables should be an external set-up operation and this can be achieved by purchasing more burners.The plasma cutting machine also has access to unmanned production which will be able to increase the capacity, since it can be running after hours.The material flow upstream and downstream must be improved through better planning of cutting orders and with a more efficient return flow. Prioritizing mate-rial supply to the constraining resource is crucial to secure that material shortages do not occur in the plasma cutting machine.If the study proposed measures are implemented, the material flow through the plasma cutting machine will be maximized. / De flesta företag har en flaskhals i sin produktion, alltså en begränsande resurs. När efterfrågan är större än kapaciteten hos den begränsande resursen kan den mängd output som efterfrågas ej levereras. Detta leder till försenade leveranser, missnöjda kunder och i förlängningen till minskade intäkter. Flaskhalsar har därför en betydande roll inom produktion och måste därför hanteras.Företaget MW Power i Sävsjö konstruerar och tillverkar kundanpassade ång- och hetvattenpannor. Företaget har investerat i en ny plasmaskärmaskin som inte har nått förväntad kapacitet. Problemen är bl.a. att ställ, maskinvård och materialtill-försel tar lång tid vilket gör att plasmaskärmaskinens utnyttjandegrad endast är 37,5 %.Syftet med studien är att maximera materialflödet genom plasmaskärmaskinen. För att uppfylla syftet kan detta brytas ner i två problemfrågor. Dessa är; Hur kan maskintiden i plasmaskärmaskinen ökas? samt Hur kan materialflödet till och från plasma-skärmaskinen förbättras så att utnyttjandet av den verkliga kapaciteten ökas?För att svara på problemfrågorna har studien haft en deduktiv ansats där befintliga teorier genom litteraturstudier tagits fram för att sedan applicerats på verkligheten.För att kunna effektivisera plasmaskärmaskinen och processer direkt anknutna till denna har materialflödet uppströms, materialflödet genom och materialflödet ned-ströms från plasmaskärmaskinen kartlagts och analyserats.För att maximera materialflödet genom plasmaskärmaskinen måste ställtider minskas för att kunna öka utnyttjandegraden och därmed nyttokapaciteten.Plasmaskärmaskinen kräver underhåll av operatören vid jämna mellanrum där munstycken och andra slitagedelar i plasmaskärmaskinens brännare måste bytas ut. En SMED-analys har genomförts där det framgår att interna ställ bör göras om till externa ställ. Byte av munstycken och andra slitagedelar är idag ett internt ställ vilket kan göras om till ett externt ställ genom att köpa in fler brännare.Plasmaskärmaskinen har även tillgång till obemannad styrning vilket kommer kunna öka nyttokapaciteten eftersom den då kan vara igång utanför ordinarie ar-betstid.Materialflödet uppströms och nedströms måste effektiviseras genom bättre plane-ring av skärordrar och ett effektivare och minskat returflöde samt genom att prio-ritera materialtillförseln så att materialbrist ej uppstår i plasmaskärmaskinen.Om studien föreslagna åtgärder genomförs kommer materialflödet genom plasma-skärmaskinen att maximeras.

<p>Detta examensarbete har genomförts på Schenker Logistics AB där målsättningen har varit att analysera den nuvarande returprocessen och därefter presentera eventuella förbättringsförslag.</p><p>Den information som ligger till grund för resultatet av detta arbete har införskaffats via observationer och intervjuer med de personer som arbetar i returprocessen.</p><p>Analysen som utfördes resulterade i att ett flertal brister kunde identifieras i returprocessen. Alla dessa brister bidrog till att komplikationer uppstod vid returhanteringen av gods på Schenker Logistics AB. Några exempel på brister som identifierades är att gods som var i godkänt fysiskt skick, returnerades till Schenker Logistics AB utan angiven orsak till returleveransen. Dessutom dokumenterades inte skadeorsaker hos någon part i försörjningskedjan, vilket bidrog till att Schenker Logistics AB var ovetande om skadans uppkomst samt vem/vad som bidrog till att skadan uppstod. Ytterligare brister som kunde identifieras i returprocessen är att fraktsedlar med ett specifikt nummer ofta försvann, fraktsedlar som är synnerligen viktiga för att Schenker Logistics AB ska kunna hantera returgodset. Vidare identifierades brister i form av omotiverat antal hanteringsställen av returgodset både internt på Schenker Logistics AB men även externt. Detta utgör en risk till att returgodset kommer i kontakt med vanligt gods, men även att det kan uppstå fysiska skador på både returgodset och det vanliga godset. Utöver dessa brister finns det några fler som omnämns och förklaras mer i rapporten.</p><p>De förbättringsförslag som presenteras i denna rapport innefattar förändringar som kan leda till att returprocessen på Schenker Logistics AB, men även i hela försörjningskedjan, blir mer kontrollerad och hållbar jämfört mot dagens situation. Förutom en halvering av antalet scenarier som uppstår på Schenker Logistics vid mottagandet av returgods, kan dessa förändringar även bidra till kostnadsbesparingar i form av hanteringskostnader och administrativa kostnader hos både Schenker Logistics AB och deras kund Shell.</p> / <p>This examination report has been carried out at Schenker Logistics AB where the objective has been to analyze the current return process and then to present possible improvements.</p><p>In order to analyze the return process there was a necessity to obtain information of the present situation. The information has been acquired through observations and interviews with persons that work in the return process. The information that was obtained made it possible to analyze the return process.</p><p>The analysis that was carried out resulted in identification of several shortcomings in the return process. Every of these shortcomings contributed to complications with handling of returns at Schenker Logistics AB. An example of a shortcoming that was identified is that undamaged goods were returned to Schenker Logistics AB without specified reason for the return delivery. Moreover, there was lack of documentation of damaged goods, which contributed that Schenker Logistics AB was unaware of what causes the damages. Additional shortcoming that could be identified in the return process is that waybills with a specific number often disappeared; waybills which are highly important to Schenker Logistics AB in order to handle the returned goods. Furthermore, several unjustified transportations of the return goods took place both internally at Schenker Logistics AB but also externally. This was a risk as the return goods could come in contact with ordinary goods; but also that it could contribute to physical damages on both the return goods and the ordinary goods. In addition to these shortcomings some more is mentioned and explained further in this report.</p><p>The proposed improvements presented in this report include changes which can highly improve the return process at Schenker Logistics AB, but also in the entire supply-chain. The return process would most likely, after an implementation of the improvements, become more controlled and sustainable compared to today's situation. These improvement proposals can reduce the number of scenarios by half, scenarios that arise at Schenker Logistics AB when receiving the return goods. These changes can also contribute to saving in costs, in form of handling costs and administrative costs, at both Schenker Logistics AB and their customer Shell.</p>

Geschäftsprozesse im Verwaltungs- und Dienstleistungsbereich werden häufig durch den Eingang von Dokumenten angestoßen. Hierfür ist es unerlässlich, dass sie den richtigen Mitarbeiter im Unternehmen oder der Organisation erreichen. Oftmals sind jedoch dem externen Sender die internen Organisationsstrukturen nicht klar, so dass eine zentrale Stelle angeschrieben wird. Diese muss dann das Dokument, basierend auf seinem Inhalt, an die zuständigen Kollegen weiterleiten. Dies kann beträchtlichen personellen Aufwand mit sich bringen. In der Forschungsarbeit wird ein System entwickelt, das diese Aufgabe maschinell erfüllen soll. Hierzu werden verschiedenartige Klassifikationsverfahren erprobt und hinsichtlich ihrer Verlässlichkeit beurteilt. Weiterhin werden Verbesserungen gegenüber gängigen maschinellen Verfahren angestrebt.