Orientador: Edmundo Roberto Mauro Madeira / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação / Made available in DSpace on 2018-08-21T15:49:43Z (GMT). No. of bitstreams: 1 Genez_ThiagoAugustoLopes_M.pdf: 2286902 bytes, checksum: 384fd51ae0278ea91a914ba4b047c6cc (MD5) Previous issue date: 2012 / Resumo: Computação em nuvem oferece utilidades computacionais de acordo com a necessidade do usuário através do modelo "pago-pelo-uso". Usuários podem fazer o uso da nuvem através dos provedores de software (Software as a Service - SaaS), de plataforma (Plataform as a Service - PaaS) ou de infraestrutura (Infrastructure as a Service - IaaS). Computação em nuvem esta atualmente sendo muito utilizada. ...Observação: O resumo, na íntegra, poderá ser visualizado no texto completo da tese digital / Abstract: Cloud computing offers utility computing according to the user's needs in a "pay-per-use" basis. Customers can make use of the cloud via Software as a Service (SaaS), Plataform as a Service (PaaS), or Infrastructure as a Service (IaaS) providers. ...Note: The complete abstract is available with the full electronic document / Mestrado / Ciência da Computação / Mestre em Ciência da Computação

Orientador: Jacques Wainer / Dissertação (mestrado) - Universidade Estadual de Campinas, Instituto de Computação / Made available in DSpace on 2018-08-20T14:02:06Z (GMT). No. of bitstreams: 1 Tampelini_LeonardoGarcia_M.pdf: 834632 bytes, checksum: b0f1d3f3d777417870d8ddd0d317ab8e (MD5) Previous issue date: 2012 / Resumo: Com a disseminação de tecnologias de gerenciamento empresarial, empresas procuram promover serviços mais ágeis e de maior qualidade. Neste contexto, áreas como gerenciamento de workflow vêm contribuindo para uma melhor organização na distribuição de tarefas. A aproximação da área de escalonamento com workflow demonstra um grande potencial para atender tais requisitos; porém, uma escassez de trabalhos voltados ao tratamento de estruturas de roteamento paralelas, comumente encontradas em modelos de workflow, é perceptível na literatura de escalonamento. Este trabalho tem por objetivo aproximar essas duas áreas apresentando três novas abordagens de escalonamento voltadas à ordenação de casos dentro de estruturas de roteamento paralelas (AND). Para alcançar tal objetivo, um conjunto de simuladores foi implementado representando o ambiente dinâmico de workflow, suas incertezas, bem como os diferentes cenários onde estruturas do tipo AND podem ocorrer. O desempenho de tais políticas foi comparado com regras amplamente utilizadas em sistemas de workflow, como FIFO (First In First Out), EDD (Earliest Due Date) e SPT (Shortest Processing Time). A análise dos resultados foi efetivada por meio de uma análise de variância (ANOVA) juntamente com o teste de Tukey. Os resultados mostram que é mais vantajoso utilizar técnicas específicas para estrutura de roteamento AND do que apenas aplicar as técnicas mais utilizadas / Abstract: With the dissemination of business management technologies, companies look for to promoting faster services with higher quality. In this context, areas such as workflow management have contributed to a better organization in the distribution of tasks. The approach between scheduling area and workflow area shows great potential to attend these requirements, but a lack of studies directed to the treatment of parallel routing structures, commonly found in workflow models, is apparent escalation in the literature about scheduling. This work aims to approximate these two areas, presenting three new scheduling approaches, directed to the raging of the cases within routing structures parallel (AND). To reach this objective a set of simulators was implemented, representing the dynamic workflow environment, their uncertainties, as well as the different scenarios where that structures such as AND may occur. The performance of these politics was compared with rules widely used in workflow systems, such as FIFO (First In First Out), EDD (Earliest Due Date) and SPT (Shortest Processing Time). The results show that it is more advantageous to use techniques focused on AND routing structure than only apply the most utilized ones / Mestrado / Ciência da Computação / Mestre em Ciência da Computação

Syftet med denna undersökning är att få en djupare förståelse om hur elektronisk dansmusik i form av house skapas av etablerade musikskapare idag. Resultaten är användbara för forskning och brukare inom i stort sett alla genrer och all musik skapad i en DAW, vilket gör undersökningens resultat relevant för många. De två forskningsfrågorna som syftet brutits ned i är: Hur ser etablerade musikproducenters generella produktionsprocesser ut vid skapande av elektronisk dansmusik i form av house? Samt: Hur liknar och skiljer sig olika producenters produktionsprocesser? Analysprocessen består av analyser av producenters produktionsprocesser samt en resultatanalys. Resultaten av analyserna visar att produktionsprocesser inom housemusik kan se ut på olika sätt och utifrån samtliga analysers resultat har en generell produktionsprocess sammanfattats. Resultaten visar även likheter och skillnader mellan producenternas processer och utifrån dessa resultat dras undersökningens mest framträdande slutsatser. Dessa slutsatser var: 1) Vikten av att testa sig fram mycket i musikskapandet. 2) Att man kan bortse från konventioner om hur vissa saker bör gå till så länge det låter bra. 3) Betydelsen av vissa virtuella instrument och ljudbearbetningsverktyg i processerna. 4) Att man kan nå professionella resultat med pluginar som ingår i ens DAW och behöver inte förlita sig helt på externa pluginar.

Ett ärendehanteringssystem är ett komplett system vars mål är att effektivisera och koordinera processer av olika slag. Ett exempel på ärendehantering är försäkringsbolag som använder sig av detta för att snabba upp och kontrollera processen för hantering av skadeärenden. I ett ärendehanteringssystem finns en ärendehanteringsmotor som sköter flödet av ärenden, vilket bland annat innebär ansvar för att ärenden hamnar hos rätt person. Examensarbetets syfte är att utveckla en liten och enkel ärendehanteringsmotor, som ändå är generell nog att fungera i olika kontexter. Ärendehanteringsmotorn levereras i form av en komponent färdig att användas vid utvecklandet av ärendehanteringssystem. Genom att återanvända komponenten och endast behöva anpassa den till det nya systemet är tanken att mycket tid sparas vid utvecklandet. Rapporten behandlar utvecklingsprocessen från identifiering av ärendehanteringsmotorns roll och kravanalys till beslut angående arkitekturen. Alternativa lösningar och framtida utvecklingsmöjligheter har diskuterats. Resultatet blev en färdig ärendehanteringsmotor som uppfyller de grundläggande krav som ställdes på komponenten.

In silico experiments in the field of bioinformatics generate large amounts of data since most of the tasks are done in an exploratory fashion. Workflows are one of the many tools used by scientists to model complex tasks.The interoperability of data generated from these tools plays an important role in improving the efficiency of such tools and also in verifying results from other experiments.We aim to compare workflow systems by integrating bioinformatics data in Vistrails and Taverna. We also look at how the two systems use the open provenance model that has been developed to bring provenance interoperability. We developed web services to perform similar functions of some workflows in Vistrails. With the services we were able to perform most of the tasks we planned using both systems. Differences in how lists of items are processed in the two systems results in differences in how workflows are composed in the two systems. In Taverna there is implicit iteration and Vistrails requires the use of additional modules to perform iteration.There are also differences in the execution times of workflows using web services, with workflows in Taverna taking longer than their counterparts in Vistrails. There are some similarities in the execution pattern of workflows if same workflow is invokedmultiple times, with the first invocation taking longer time than the subsequent ones.

The workflow of different game modelling artists is explored, with the goal of creating a melee weapon designed for games. A low polygon weapon was created using the research into the most common components from professional workflows of creating game models. One of the goals for the paper was to obtain a greater understanding of professional workflows when creating models for games. Other goals were to utilize the research and design a finished game model from concept to end product.

The fresh hake processing lines at Seavuna fishing company in Mossel Bay are not consistently achieving their volume output standards and this is resulting in higher processing costs and loss of processing opportunities. The company’s senior management are concerned about this trend and require a complete review of the effectiveness of the resources deployed on the lines. This with the view of establishing the causes of poor process volume output. In order to resolve the process inefficiency challenges mentioned, this study used both empirical and time studies to investigate the effectiveness of the company’s resources directly deployed in the processing unit. The study focused on investigating the human factor, machinery and equipment, the environment and the current efficiency standards. Relevant literature in the field of process efficiency improvement was consulted to assist in identifying factors that are known to cause process inefficiencies, and also to establish which improvement techniques would be relevant in correcting the situation. From the Literature reviewed, it was evident that a ‘one size fits all’ solution to resolving inefficiencies is almost non-existent and that a solution that is relevant to the problem is more effective. In addition, a benchmarking exercise was also done to establish how Seavuna’s current volume output standards fair against its major rivals. Once data from both studies were collected, the results were analysed using the some of the basic quality tools. Thereafter, lean manufacturing principles were used to attempt to resolve the current efficiency challenges. The study recommended that the company construct a business strategy and a corresponding organisational culture to direct its continuous improvement interventions. The use of strategic quality planning would go a long way in assisting the company to execute some of the interventions recommended.

Implementations and installations of Enterprise Resource Planning systems (ERP-systems)are often time consuming and complex processes. Technicians who workwith installations of ERP-systems require tools and utilities in order to perform theirwork in a time efficient and qualitative manner.This study is performed at the company Industrial and Financial Systems (IFS) inLinköping and has focused on the technical documentation that describes theinstallation process, "IFS Installation Guide". This guide is one of the most importanttools available to facilitate the installation process of the ERP-system, IFSApplications.The purpose of this thesis is to analyze and suggest improvements to the usability andworkflow aspects of IFS Installation Guide. This study is based on seven semistructuredinterviews and one observation with IFS employees working on variousconsultancy services within IFS ‘key regions’. The result from the interviews highlightsa number of problems, which have been analyzed and investigated together withrelevant literature.The findings of this study demonstrate that it is of utmost importance to have a cleartarget audience, easy channels for feedback and that information must be easy tofind in order to develop and maintain high quality in technical documentation.

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Configura Sverige AB is developing the software solutions Configura and CET Designer for companies dealing with highly configurable and complex products that also require space planning. The aim is to simplify the selling process. Configura Sverige AB has received requests from their customers to be able to read and write files according to an ISO standard called Industry Foundation Classes (IFC). IFC is an open international standard within Building Information Modeling (BIM) to exchange data between different software applications used for projects in the building industry and facility management. To assist Configura Sverige AB in a decision on how to further proceed, questions why users request IFC, how they need to work with IFC, and about possible workflows with IFC are considered in this thesis. To answer the questions, an interpretive case study method was used to view the questions from different perspectives. A qualitative approach was used to collect and analyze data, involving for example a survey among users requesting IFC and input from two different contractors requesting IFC files from these users. The results show that users have been requested by architects and contractors to supply IFC files, and a conclusion is that demands on the use of BIM and IFC within the public sector in certain countries is a major reason to these requests. The results has much focus on import and export of IFC files and on possible workflows using IFC files. With IFC files, users may be a part of a collaboration between several different disciplines within the building industry. Users need to base their work on other disciplines models, which in many cases will be the architect's IFC file. An IFC export shall only include the user's products, it will be up to another application to integrate these products in a coordination BIM. The IFC export will be used for interdisciplinary coordination, visualization and collision detection and it is important to use simple graphical representation of the products.