As optical fiber systems evolve to higher data rates, the importance of polarization control and manipulation steadily increases. Polarization manipulating devices, such as polarization splitters and converters, can be realized by introducing material anisotropy or geometric asymmetry. Compared to active devices, passive polarization converters are more simply fabricated and controlled; therefore they have attracted increasing attention during the past two decades. However, materials employed in previous polarization rotating waveguides are mainly limited to low index-contrast III-V semiconductors such as InP and GaAs. Such III-V devices possess large radiation loss, large curvature loss, and low coupling efficiency to single-mode fibers; in addition, due to the weak optical confinement, the device spacing has to be large, which prevents high-density and large-scale integration in optoelectronic integrated circuits (OEIC) and planar lightwave circuits (PLC). <br /><br /> In this dissertation, the silicon-on-insulator (SOI) technology is introduced to the design and fabrication of passive polarization rotators (PR). Efficient and accurate full-vectorial finite-element eigenmode solvers as well as propagation schemes for characterizing novel SOI PRs are developed because commercial software packages based on finite-difference techniques are inefficient in dealing with arbitrary waveguide geometries. <br /><br /> A set of general design procedures are accordingly developed to design a series of slanted-angle polarization converters, regardless of the material system (SOI or III-V), outer-slab layer configuration (symmetric or asymmetric), and longitudinal loading (single- or multi-section). In particular, our normalized design charts and simple empirical formula for SOI polarization converters are applicable to a wide range of silicon-guiding-film thickness, e. g. , from 1 to 30 &mu;m, enabling fast and accurate polarization rotator design on most commercial SOI wafers. With these procedures, in principle 100% polarization conversion efficiency can be achieved by optimizing waveguide geometric parameters. <br /><br /> A novel configuration with asymmetric external waveguiding layers is proposed, which is advantageous for fabrication procedure, manufacturing tolerance, single-mode region, and conversion efficiency. By etching along the crystallographic plane, the angled-facet can be perfectly fabricated. Completely removing external waveguiding layer beside the sloped sidewall not only simplifies production procedures but also enhances fabrication tolerances. <br /><br /> To accurately and efficiently characterize asymmetric slanted-angle SOI polarization converters, adaptive mesh generation procedures are incorporated into our finite-element method (FEM) analysis. In addition, anisotropic perfectly-matched-layer (PML) boundary condition (BC) is employed in the beam propagation method (BPM) in order to effectively suppress reflections from the edges of the computation window. For the BPM algorithm, the power conservation is strictly monitored, the non-unitarity is thoroughly analyzed, and the inherent numerical dissipation is reduced by adopting the quasi-Crank-Nicholson scheme and adaptive complex reference index. <br /><br /> Advantages of SOI polarization rotators over III-V counterparts are studied through comprehensive research on power exchange, single-mode condition, fabrication tolerance, wavelength stability, bending characteristics, loss and coupling properties. The performance of SOI PRs is stable for wavelengths in the ITU-T <em>C</em>-band and <em>L</em>-band, making such devices quite suitable for DWDM applications. Due to the flexible cross-section of SOI polarization converters, the coupling loss to laser diodes and single mode fibers (SMF) can be designed to be very small and can be further reduced by a tapered waveguide with cross-sections always satisfying the single-mode criteria. Slanted-angle SOI polarization rotators display asymmetric bending characteristics and permit extremely small curvatures with negligible radiation loss when the angled-facet is located at the outer bend radius. Moreover, SOI polarization rotators can be manufactured with low-price processing techniques that are fully compatible with CMOS integrated circuits (IC) technology, and thus can be integrated on both photonic and electronic chips. <br /><br /> Experimental verifications have shown good agreement with theoretical analysis and have confirmed the promising characteristics of our novel asymmetric SOI polarization converters. Similar asymmetric-outer-slab geometry has recently been employed by peer researchers to fabricate high performance III-V polarization rotators. We therefore believe that results in this dissertation will contribute much to related research fields.

A novel battery power system configured by the battery power modules (BPMs) is proposed. Each BPM consists of a single battery pack or a battery bank equipped with an associated DC/DC converter. The output ports of BPMs can be connected in series for the high voltage applications, or in parallel to cope with a higher power or energy. For a large scale battery power system, a number of BPMs can be arrayed with combination of series and parallel connections to meet the load requirements. These all configurations allow the BPMs be operated individually. Consequently, the discharging currents of the batteries can be independently controlled, but coordinated to provide a full amount of the load current. The performances of BPMs connected in both parallel and series at outputs are analyzed theoretically and discussed from the experimental results. Batteries operating independently do not suffer from charge imbalance, and thus can avoid being over-charged or over-discharged, so that the life cycle can be prolonged. Furthermore, sophisticated discharging profiles such as intermittent currents can be realized to equalize the charges and thus to efficiently utilize the available stored energy in batteries. During the operation period, some of the batteries may take rest or be isolated from the system for the open-circuit measurement, facilitating the estimation of the state-of-charge (SOC) and the evaluation of the state-of-health (SOH). With the benefit of independent operation, the BPMs can be discharged with a scheduled current profile, such as intermittent discharging. The investigation results show that the average current plays the most important role in current discharging. By detecting the battery voltage at the break time, an SOC estimation method based on the dynamically changed open-circuit voltage exhibits an acceptable accuracy in a shorter time with considerations of the previous charging/discharging currents and the depth-of- discharge (DOD). In addition, the coulomb counting method can be enhanced by evaluating the SOH at the exhausted and fully charged states, which can be intended on the independently operated BPMs. Through the experiments that emulate practical operations, the SOC estimation methods are verified on lead-acid batteries and lithium-ion batteries to demonstrate the effectiveness and accuracy.

El enfoque orientado a procesos de negocio es un aspecto ampliamente relevante para las organizaciones, que en los últimos años ha recibido importante atención de la comunidad científica internacional. Asimismo, los avances en cuanto a la provisión de herramientas de soporte para automatizar la gestión los procesos de negocio también ha adquirido gran relevancia. Sin embargo, la brecha existente entre el área de negocio y el área de tecnología, representadas por analistas de negocios y expertos en informática, respectivamente, sigue constituyendo un escollo a la hora de aplicar una metodología de gestión por procesos de negocio dentro de las organizaciones. Por otra parte, los pocos avances tecnológicos respecto a la incorporación de nuevos modelos computacionales distribuidos y de aspectos sociales en la ejecución de los proceso de negocio y de las herramientas que la soportan, contribuyen a aumentar dicha brecha. Por estos motivos, resultan relevantes las investigaciones en metodologías, marcos de trabajo y herramientas que incluyan estos nuevos paradigmas en la administración de procesos de negocio. En esta tesis se plantea mejorar y actualizar la Metodología Integradora de Servicios y Procesos (MISP), propuesta por la autora en su tesis de Maestría en Redes de Datos, proveyendo una nueva visión de los procesos y los servicios a la luz los avances tecnológicos y buscando reducir la brecha entre el negocio y la tecnología. Específicamente, el trabajo se enfoca en dos principales problemas: 1) la mejora al modelado de procesos y servicios mediante la definición e integración de metamodelos, aplicados a las fases de diseño de procesos dentro del ciclo de vida de los procesos de negocio, y 2) en revisar aspectos tecnológicos modernos – como por ejemplo, la distribución de las actividades de los procesos y la inclusión de aspectos sociales relacionados con la ejecución de los mismos, que su aplicación resulta de interés en las etapas de despliegue, ejecución y monitoreo de los procesos de negocio. . Atendiendo los problemas descriptos, esta tesis tiene dos contribuciones importantes. Por un lado, la mejora a la interacción entre procesos y servicios mediante la provisión de un lenguaje para describir servicios que integra las actividades del proceso con las componentes de software que lo implementan. Por otro lado, la propuesta de prototipos de herramientas que permiten incorporar aspectos de distribución que enriquecen los rastros de ejecución de los procesos, y características sociales a la gestión de procesos. Esta ultima contribución permite optimizar la fase de monitoreo del ciclo de vida de los procesos y acelerar la mejora continua de los mismos.

Modebranschen är en ständigt föränderlig bransch som präglas av långa ledtider, osäkra prognoser och starkt trendfokus. Ahlvar By Frida Ahlvarsson är ett svenskt modeföretag som verkar inom just denna bransch. Ahlvar upplever precis som många andra små modeföretag problem kopplade till branschens uppbyggnad. Problemen som företaget upplever är främst ekonomiska men har också att göra med höga lagernivåer och hög arbetsbelastning. I detta arbete görs en granskning av Ahlvars inköpsprocess med hjälp av Business Process Management (BPM) för att identifiera orsakerna bakom de problem som företaget upplever. Det fastslås att företagets ekonomiska problem främst är kopplade till höga produktionskostnader medan de höga lagernivåerna främst beror på avsaknaden av statistiska prognoser. Den höga arbetsbelastningen verkar i sin tur ha att göra med det faktum att det som enmansföretag är svårt att handskas med inköpsprocessens många steg och parallella processer. För att identifiera lösningar till dessa problem presenteras teori kring inköpsprocesser och även information om hur tre liknande modeföretag arbetar. De tre andra företagen är Filippa K, Företag X och House of Dagmar. Tillsammans med teorin görs en jämförelse mellan dessa tre och Ahlvar. Jämförelsen visar att det finns många likheter mellan företagen och att mycket av deras arbetssätt har goda kopplingar till teorin. Dock i identifieras även vissa markanta skillnader mellan Ahlvar och de andra företagens arbetssätt. Utifrån jämförelsen fastslås tre huvudsakliga rekommendationer för hur Ahlvar ska förändra sin inköpsprocess i syfte att förbättra sin ekonomiska situation med hjälp av en mer effektiv försörjningskedja. Rekommendationerna är att företaget bör hitta fler leverantörer, byta leverantörsland från Kina till ett eller flera länder i Europa och att börja göra enklare prognoser på tidigare års försäljning. Som en följd av bytet av leverantörsland rekommenderas även företaget att förändra sitt val av transportslag från flygplan till lastbil och båt vid frakt av produkter.

The High Radiation to Materials facility employs a high intensity pulsed beam imposing several challenges on the beam position monitors. Diamond has been shown to be a resilient material with its radiation hardness and mechanical strength, while it is also simple due to its wide bandgap removing the need for doping. A new type of diamond based beam position monitor has been constructed, which includes a hole in the center of the diamond where the majority of the beam is intended to pass through. This increases the longevity of the detectors as well as allowing them to be used for high intensity beams. The purpose of this thesis is to evaluate the performance of the detectors in the High Radiation to Materials facility for various beam parameters, involving differences in position, size, bunch intensity and bunch number. A prestudy consisting of calibration of the detectors using single incident particles is also presented. The detectors are shown to work as intended after a recalibration of the algorithm, albeit with a slightly lower precision than requested, giving a promising new beam position monitoring system. They work for the full intensity range and a single bunch resolution is achieved. Functionality is also shown with backscattering from dense targets.

Sammanfattning I en komplex informationsteknologisk värld behöver företag och organisationer flexibla affärssystem som följer den tekniska utvecklingen. Av denna anledning har kommersiella BPMS-verktyg (Business Process Management System) blivit populära på grund av sin höga förmåga att snabbt integreras med affärssystemen i nya arbetsmiljöer. Ett alternativ till kommersiella BPMS-verktyg är de OSS-baserade (Open Source Software) BPMS-verktygen med öppen källkod som är tillgänglig för allmänheten att vidareutveckla.  På grund av att de OSS-baserade BPMS-verktygen ofta är unga på marknaden och behöver vidareutvecklas blev syftet med denna uppsats att genomföra en granskning av de open source-baserade BPMS-verktygen vad gäller deras skilda egenskaper. En sådan granskning ökar förståelsen för hur verktygen fungerar och underlättar därför vidareutvecklingen av dem. Genom att utgå från en etablerad analysmodell av Delgado et al. (2015) genomfördes en tematisk innehållsanalys för att jämföra egenskaperna i dessa verktyg. Närmare bestämt analyserades insamlade dokument som beskriver BPMS-verktygens egenskaper. Den vägen jämfördes 6 olika BPMS-verktyg utifrån 13 egenskaper. Analysresultatet visade att Bonitasoft, jBPM och JMPM5 var de mest välutvecklade BPMS-verktygen som gav stöd för flest egenskaper. Resultatet visade även att verktyg med färre egenskaper ändå kunde vara ett bra alternativ för vissa företag, beroende på vilka egenskaper och funktionaliteter som prioriteras inom företaget. / Abstract In a world of developing complex information technologies, companies and organizations need flexible and updated business systems that and match these technological developments. For this reason, commercial BPMS (Business Process Management System) tools have become popular because of their high ability to quickly integrate with business systems in new work environments. An alternative to commercial BPMS tools are the OSS-based (Open Source Software) open source BPMS tools that are available for the public to develop. Since the OSS-based BPMS tools are often new on the market and need further development, the purpose of this paper was to conduct an analysis of open source-based BPMS tools with respect to their various features. Such an analysis increases the understanding of the tools’ functionality and therefore facilitates further development of them. Based on an established analysis model by Delgado et al. (2015), a thematic option for some companies, depending on the characteristics and functionalities that are prioritized within the company. Content analysis was conducted to compare the characteristics of these tools. More specifically, collected documents were analyzed describing the properties of BPMS tools. That way, 6 different BPMS tools were compared based on 13 properties. The analysis showed that Bonitasoft, jBPM and JBPM5 were the most well-developed BPMS tools that supported most of the features. In addition, the analysis demonstrated that tools with fewer features could still be a good option for some companies, depending on the characteristics and functionalities that are prioritized within the company. / Nej

Highly ordered magnetic materials with high perpendicular magnetic anisotropy (PMA), such as the L10 ordered FePt, and new recording technologies, such as bit patterned media (BPM), have been proposed as solutions to the media trilemma problem and provide promising strategies towards future high-density magnetic data storage media. L10 ordered FePt thin films can provide the necessary high PMA. However, the ordering of this material perpendicular to the plane of the films remains challenging since high-temperature and time-consuming processes are required. In this work, a remote plasma sputtering system has been used for the investigation of FePt thin films in order to understand if the greater control of process parameters offered by this system can lead to enhanced ordering in L10 FePt thin films at low temperatures compared with conventional dc magnetron approaches. More specifically, the effect of the different substrate temperatures and the target bias voltages on the ordering, the microstructure and the magnetic properties of FePt thin films was investigated. Highly ordered FePt thin films were successfully fabricated after post-annealing processes and were patterned into arrays of FePt islands. This patterning process was carried out with e-beam lithography and ion milling. Initial MFM measurements of these islands showed their single-domain structure for all the island sizes, which indicated the high PMA of the FePt. Magnetometry measurements were also carried out with a novel polar magneto-optical Kerr effect (MOKE) system which was designed and built during this project. This system has unique capabilities which are: a) the application of uniform magnetic field up to 2 Tesla, b) the rotation of the field to an arbitrary angle and c) the use of lasers of four different wavelengths. The combination of these abilities enabled measurements on ordered FePt thin films and patterned media which can pave the way for further highly sensitive measurements on magnetic thin films and nanostructures.

Ingeniero Civil Industrial / La Bolsa de Comercio de Santiago en un marco de implementación de una política global de incorporación de mejores prácticas, ha solicitado la realización de un proyecto de mejora a sus procesos de facturación, que es presentado en este informe. La escasa visibilidad de la información que tienen los procesos de Facturación a Proveedores y Facturación a Clientes, impide que la organización disponga de aquella en los tiempos requeridos por la alta gerencia. Además, se constata que existe gran cantidad de información en papel y de difícil acceso y se presentan cuellos de botellas en la digitación y tareas repetidas. Con el propósito de abordar estas ineficiencias, la institución encarga un proyecto de mejoramiento del proceso que permita disminuir los tiempos incurridos en su ejecución y disponer de toda la información de manera oportuna y fácilmente accesible. El proyecto por tanto, se enmarca en la disciplina del Rediseño de Proceso de Negocio utilizándose la metodología BPM, la cual se estima como la más adecuada a la solución del problema planteado. Para el efecto, se consideraron cuatro etapas en el desarrollo del trabajo: Definición del Proyecto, Análisis de la Situación Actual, Rediseño de Procesos y Diseño de Software de Apoyo Luego de definido el proyecto y utilizándose diagramas de notación BPMN, se llevó a cabo el análisis de la situación actual, partiendo con el diseño y documentación de los subprocesos: Gestión de solicitudes para facturación electrónica y manual, Gestión de Pagos y Cobranza, Aplicación de Pago, Facturación a Proveedores, Gestión de pagos a proveedores. Posteriormente se midieron algunos de sus atributos, detectándose un conjunto de ineficiencias, tales como digitaciones repetidas, alta involucración del subgerente, despacho físico de facturas, entre otras. Luego se asociaron métricas específicas a las problemáticas detectadas, obteniéndose tiempos de respuesta a Áreas Requirentes, medidos en 4 horas; Horas Hombre involucradas en los procesos, medidos en 422 Horas para facturación a proveedores y 540 Horas para facturación a Clientes; entre otras métricas. Con el diagnóstico finalizado, se diseñan los procesos propuestos que contemplan una única forma de facturación para toda la empresa, donde las solicitudes son directamente digitadas por las áreas requirentes, y manejadas en forma digital durante todo el proceso, sin despachos físicos ni almacenamiento en papel, permitiendo un acceso rápido a los datos incluso desde usuarios externos al proceso. Se concluye que el rediseño permitió abarcar los requerimientos de la empresa, al estimarse mejoras del 98% en los tiempos de respuesta a los requirentes de información y un promedio de 19,2% de ahorro en costos del Hora Hombre de los procesos. El trabajo futuro se deberá centrar en la implementación y puesta en marcha de estas prácticas estandarizadas en la forma de facturar y generar las solicitudes, y la elaboración de mayor cantidad de reportes a la alta gerencia, dado el tiempo que se liberó a los usuarios del proceso. Las interfaces propuestas deberán ser tomadas por un equipo desarrollador, y diseñar con ellas el software de apoyo que el rediseño necesita.

O controle centralizado do tráfego tem como objetivo integrar e gerenciar informações, auxiliando na tomada de decisão em tempo real. Devido ao aumento da complexidade da malha viária, principalmente em grandes cidades, muitos estudos têm focado em sistemas de controle de tráfego, incluindo desenvolvimento de novas tecnologias e ferramentas. Para gerenciar essa complexidade, é necessário que as organizações públicas, onde estão inseridos os Centros de Controle de Tráfego (CCT), conheçam e melhorem seus processos, alinhando e integrando-os aos seus sistemas de informação, de maneira a possibilitar o atendimento das demandas de forma eficiente. Nesse sentido, esta pesquisa baseia-se nos conceitos e práticas do Business Process Management (BPM) com objetivo de propor um modelo de estruturação dos processos para a gestão inteligente das informações no controle centralizado do tráfego. O trabalho, portanto, se desenvolve ao longo das fases e etapas do ciclo do BPM, contemplando desde o planejamento até a modelagem de processos e apresentando como resultado final uma proposta para um plano de otimização de processos. Assim, para atender ao objetivo principal da pesquisa, o trabalho foi desmembrado em três artigos com níveis crescentes de glanuralidade: (i) Inicialmente foi apresentada, baseada em estudo de caso, uma aplicação abrangente da metodologia, percorrendo da primeira à terceira fase do ciclo de BPM em que a empresa está apta para executar os processos e seguir para a quarta fase, Controle e Análise de Dados. (ii) O segundo artigo apresenta o detalhamento da segunda fase do ciclo de BPM, que consiste na modelagem e otimização dos processos. Os processos As Is foram, então, modelados e analisados para que pudesse ser proposta a melhoria na forma de um macroprocesso To Be. (iii) Para embasar a proposição do macroprocesso To Be, foi realizada uma revisão sistemática de literatura, na qual foram compiladas as melhores práticas no tema e verificadas para a realidade brasileira através de entrevista com especialistas. O resultado foi o Mapeamento de Melhores Práticas associado a um Modelo Referência para o Processo de Controle de Tráfego. Em complemento, foram determinadas diretrizes a serem seguidas para a gestão inteligente das informações no controle centralizado do tráfego. Esses resultados definem, portanto, um modelo de referência To Be dos processos de trabalho em CCTs. A principal contribuição teórica desta pesquisa é, então, a consolidação de melhores práticas associadas a um Modelo de Referência do Processo de Controle do Tráfego, ajustado para a realidade dos CCTs brasileiros. Do ponto de vista prático, a metodologia e os resultados apresentados incentivam a implantação de BPM não só em CCTs, mas em qualquer setor de uma organização pública. / The centralization of traffic control aims to integrate and manage information, aiding decision making in real time. Due to the increasing complexity of the road network, especially in large cities, many studies have focused on traffic control systems, including development of new technologies and tools. To manage this complexity, it is necessary that public organizations, where the Traffic Control Centers (TCC) are inserted, understand and improve their processes, aligning and integrating them into their information systems in order to enable the fulfillment of demands efficiently. In this sense, this research is based on the concepts and practices of Business Process Management (BPM) in order to propose a structuring model of processes for the intelligent management of information in centralized traffic control. The work, therefore, is developed through the phases and stages of the BPM cycle, covering from planning to process modeling and presenting as the final result a proposal for a process optimization plan. Thus, to meet the main goal of the research, the work was divided into three articles with increasing levels of detail: (i) initially it was presented, based on case study, a comprehensive application of the methodology, that cover from the first to the third phase of the BPM cycle in which the company is able to run the process and move on to the fourth phase, Control and Data Analysis. (ii) The second article presents the details of the application of second phase of the BPM cycle, which consists of modeling and optimization of processes. The processes "As Is" were modeled and analyzed in order to propose improvements trough a Macro process "To Be". (iii) To support the proposition of macroprocess “To Be”, a systematic review of the literature was applied in order to compile best practices on the subject that were checked for the Brazilian reality through interviews with experts. The result was a Map of Best Practices in association with a Reference Model for Traffic Control Process. In addition to the map, the paper presents guidelines to be followed for the intelligent management of information in centralized traffic control. These results define a reference model "To Be" of work processes in TCCs. From a practical standpoint, the methodology and results presented encourage the deployment of BPM not only in TCCs, but also in any department of a public organization.

Há mais de uma década, BPM vem sendo introduzida nas organizações devido suas vantagens tais como documentação, gerenciamento, monitoração e melhoria contínua de seus processos de negócio. Na abordagem BPM, normalmente, os processos de negócio da organização são executados sob o controle de um Sistema Gerenciador de Processos de Negócio. Estes sistemas executam os processos de negócio, coletando informações úteis para organização. Por exemplo, através destes sistemas é possível identificar as atividades que mais demoram ou consomem mais recursos humanos. Desta forma, é possível redesenhar os processos de maneira ágil, garantido a evolução contínua do negócio. Entretanto, para se beneficiar da tecnologia BPM, a organização deve mapear seus processos de negócio e modelá-los no Sistema Gerenciador de Processos de Negócio. Normalmente, esse trabalho é realizado por especialistas humanos, que observam e identificam o funcionamento da organização, definindo, em detalhes, os fluxos de trabalho realizados para cumprir determinadas metas de negócio. Contudo, na maior parte das organizações os processos de negócio encontram-se implementados em sistemas de informações legados. Tais sistemas possuem pouca documentação, foram desenvolvidos com uso de tecnologias obsoletas e os processos de negócio, neles contidos, foram programados implicitamente no seu código fonte. Deste modo, além das entrevistas com usuários-chave da organização, os analistas precisam também entender o funcionamento dos sistemas legados a fim de identificar os processos de negócio da organização. Geralmente, os analistas de negócio fazem este trabalho manualmente, interpretando os algoritmos escritos no código fonte legado e identificando os fluxos de trabalho nele escritos. Esse trabalho é complexo, demorado e suscetível a erros, pois depende do nível de conhecimento que os analistas de negócio têm sobre o código fonte legado. Pensando neste problema, essa tese apresenta um método que automatiza a descoberta de processos de negócio implementados implicitamente no código fonte de sistemas legados. O método propõe uma técnica híbrida, que usa análise estática do código fonte e análise dinâmica (mineração de processos) para descobrir os processos de negócio codificados em sistemas legados. A tese apresenta os passos para aplicação do método, definindo para cada passo, um conjunto de ferramentas capazes de automatizar a descoberta de informações no código fonte legado. Este trabalho também mostra três estudos de caso, onde o método foi aplicado com sucesso e comparado a outras técnicas existentes na literatura. / For over a decade, BPM is being introduced in organizations due to its advantages such as documentation, management, monitoring and continuous improvement of its business processes. In BPM approach, business processes of the organization are executed under the control of a Business Processes Management System. These systems monitor the execution of the processes and measuring the operational efficiency of the organization through, for example, of the identification of activities those are slower or consume more resources. Thus, the organization can redesign their business processes in an agile and fast mode, thereby ensuring the continued evolution of your business. However, to take advantage of BPM technology, the organization must map their business processes and model them in the Business Processes Management System. Typically, organizations execute the business process mapping through manual techniques, such as interviews, meetings with users, questionnaires, document analysis and observations of the organizational environment. However, in most organizations business processes are executed in legacy systems information. Such systems have not documentation, have been developed with obsolete technologies and the business processes are programmed implicitly in its source code. Thus, in addition to interviews with expert users of the organization, analysts must also understand the working of legacy systems in order to identify the business processes of the organization. Generally, business analysts do this work manually, interpreting algorithms written in legacy source code and identifying workflows written in the source code. This work is complex, time consuming and error prone, since it depends on the knowledge level that business analysts have about the legacy source code. Thinking about this problem, this thesis presents a method that automates the discovery of business processes implemented implicitly in the source code of legacy systems. The method proposes a hybrid technique that uses static analysis of the source code and dynamic analysis (mining process) to discover business processes encoded in legacy systems. The thesis presents the steps for applying the method, defining for each step, a set of tools that automate the discovery of information in the legacy source code. This work also shows three case studies where the method was successfully applied and compared to other existing techniques in the literature.