In dieser Habilitationsschrift wird die formale Semantik der standardisierten Spezifikationssprache SDL (Specification and Description Language) beschrieben. Da SDL eine sehr umfangreiche Sprache ist, wurde eine repräsentative eingeschränkte Sprache RSDL (Restricted SDL) ausgewählt, um die Konzepte der formalen Definition von SDL darzustellen. Die vorliegende Habilitationsschrift umfaßt zwei große Teile: die Definition der formalen Semantik von RSDL und ihre Implementierung. Die formale Definition der Semantik von RSDL ist verständlich, leicht mit der informalen Beschreibung zu vergleichen und repräsentiert die grundsätzliche Vorstellung von RSDL. Für die Beschreibung werden zwei Teile unterschieden, nämlich die statische Semantik und die dynamische Semantik. Die statische formale Sprachdefinition besteht aus einer konkreten Syntax, einer Menge von Korrektheitsbedingungen, einer Menge von Transformationsregeln und einer abstrakten Syntax als Basis für die dynamische Semantik. Das Ergebnis der statischen Beschreibung ist eine Repräsentation der Spezifikation in abstrakter Syntax. Die Formalisierung der dynamischen Semantik beginnt mit der abstrakten Syntax. Aus dieser abstrakten Syntax wird ein Verhaltensmodell abgeleitet, das auf der mathematischen Theorie der Abstrakten Zustandmaschinen ASM (Abstract State Machines) basiert. Um die Definition der Semantik besonders übersichtlich zu gestalten, wird eine Spezielle Abstrakte Maschine (SAM) unter Nutzung von ASM definiert. Diese abstrakte Maschine stellt eine abstrakte SDL-Maschine dar. Die formale Semantik beschreibt die Eigenschaften von SDL exakt. Um jedoch herauszufinden, ob die Semantik korrekt ist, muß sie mit der Sprachbeschreibung und den Intentionen der Sprachentwickler verglichen werden. Dies geschieht am einfachsten durch eine korrekte Implementierung der Semantik. Die Implementierung der formalen Semantik basiert auf einer Repräsentation der Eingabe als abstrakter Syntaxbaum. Um die Semantik mit minimalem Aufwand zu implementieren, werden existierende Werkzeuge verwendet. Der Compiler wird mit den Standardwerkzeugen lex und yacc generiert. Nach der Syntaxanalyse wird die weitere Verarbeitung über dem abstrakten Syntaxbaum der Eingabe definiert. Die Verarbeitung von abstrakten Syntaxbäumen wird durch ein Werkzeug namens kimwitu erledigt. Mit der hier vorgestellten Technologie wurde die formale Semantik von RSDL implementiert. Entsprechend wird die formale Semantik von SDL implementiert. / In this habilitation thesis the formal semantics of the standardised specification language SDL (Specification and Description Language) is described. Because of the size of the language SDL a representative subset of the language called RSDL (Restricted SDL) was selected to present the concepts of the formal definition. In this thesis two major parts are covered: the definition of the formal semantics and its implementation. The RSDL formal semantics is intelligible, easily comparable with the informal description and represents the general understanding of RSDL. We distinguish between two phases of the definition, namely the static semantics and the dynamic semantics. The static semantics comprises the definition of a concrete grammar, a set of correctness constraints, a set of transformation rules and an abstract syntax as basis for the dynamic semantics. The result of the static semantics is a representation of the specification in abstract syntax. The dynamic semantics starts with the abstract syntax. From here a behaviour model is derived based on the theory of Abstract State Machines (ASM). In order to keep the presentation intelligible a special abstract machine is defined using ASM. This abstract machine in fact represents an abstract SDL-machine. The formal semantics describes the properties of SDL exactly. However, in order to check the correctness of the formalisation, it has to be compared with the informal language description and the intentions of the language designers. This is most easily done using a correct implementation of the semantics. The implementation of the semantics is based on a representation of the input as an abstract syntax tree. For implementing the semantics with minimal effort existing tools are used. The compiler is produced using the standard tools lex and yacc. After parsing the remaining processing is defined over abstract syntax trees, which is covered by a tool called kimwitu. The formal semantics of RSDL is implemented using these tools. The same approach is applicable for SDL.

Empresas de manufatura tradicionalmente concentram os seus esforços em concepção, desenvolvimento, fabricação e comercialização de produtos físicos. No entanto, alguns fabricantes têm alterado suas estratégias de negócio, complementando a venda de produtos com o fornecimento de serviços, incorporando conhecimentos e atividades associados ao seu uso, e gerando maior percepção de valor por parte dos seus clientes. Com isso, a competição estratégica por meio de serviços tem se tornado uma marca distintiva das empresas de manufatura inovadoras, proporcionando à empresa um meio robusto para proteger o seu mercado dos concorrentes. Assim, observa-se um interesse crescente em pesquisas sobre o papel dos serviços para sustentar a competitividade da indústria. Abordagens orientadas a serviço, que incorporam esta mudança de foco do negócio, da oferta de produtos isolados para soluções integradas, têm sido tratadas na comunidade acadêmica como servitização, e tipicamente acarretam inovações no modelo de negócios (MN) da empresa. O objetivo deste trabalho é investigar como as empresas podem promover inovações em seus MNs para suportar suas estratégias de servitização, e propor um conjunto de artefatos para apoiá-las na implantação destas estratégias, a partir do seguinte problema de pesquisa: \"Como inovar o MN de uma empresa que adota a estratégia de servitização?\", que se desdobra nas seguintes questões: (i) quais são os principais fatores motivadores para uma empresa adotar a estratégia de servitização?; (ii) como representar o MN de uma empresa incorporando a lógica dominante de serviço, mais adequada para servitização?; (iii) como inovar o MN de uma empresa para implantar sua estratégia de servitização?; e (iv) como aplicar os artefatos propostos para apoiar a implantação da estratégia de servitização em uma empresa? Realiza-se uma pesquisa de natureza exploratória e prescritiva, baseada no método design scienceresearche amparada por uma revisão sistemática da literatura sobre os temas correlatos, visando propor artefatos em resposta às questões colocadas. A demonstração de um dos artefatos propostos é feita com suporte de um estudo de caso em uma empresa multinacional, fabricante de equipamentos médicos, seguida por uma avaliação empírica desta demonstração, suportada pelo método thinkingaloud. A partir das quatro questões de pesquisa, são obtidos os seguintes resultados: (i) identificação, análise e categorização dos principais fatores motivadores para adoção da servitização; (ii) proposição de uma arquitetura de MN incorporando a lógica dominante de serviço, para facilitar o estudo da servitização; (iii) proposição de um processo de inovação do MN da empresa, para implantar a servitização. e (iv) demonstração e avaliação da arquitetura proposta de MN para servitização. A pesquisa oferece contribuições à literatura de MN e servitização, e aos gestores de empresas, propondo os artefatos canvas do modelo de negócios para servitização (CMNS) e o processo IPIDI para inovação do MN para servitização, além de contribuições metodológicas relativas a design scienceresearch e thinking aloud. / Manufacturing companies traditionally are focused on designing, developing, manufacturing and marketing physical products. However, some manufacturers are changing their business strategies, complementing the sale of products by providing services, adding knowledge and activities associated with their use, and creating a higher perception of value by their customers.Strategic competition through service delivery has become a hallmark of the innovative manufacturing companies, providing the companies with a robust means to protect their market from competitors. Thus, there is a growing interest in researching the role of services in sustaining the competitiveness of manufacturing industry.Service-oriented approaches, which incorporate this shift in business\' focus from offering isolated products, to proposing integrated solutions, have been addressed in the literature as servitization, and typically entail innovations in the company\'s business model (BM). The goal of this research is investigating how companies can promote transformations in their BMs to support their servitization strategies, and proposing a set of artifacts to support them in the implementation of these strategies, since the following research problem: \"How to innovate the BM of a company which adopts the servitization strategy? \", which unfolds in the following questions: (i) what are the main motivating factors for a company to adopt the servitization strategy?; (ii) how to represent the BM of a company incorporating the service-dominant logic, more suitable for servitization?; (iii) how to innovate a company\'s BM to implement its servitization strategy ?; and (iv) how to apply the proposed artifacts to support the implementation of the servitization strategy in a company? An exploratory and prescriptive research is carried out, based on the design science research methodology, and supported by a systematic literature review on the related subjects, aiming at proposing artifacts in response to the questions posed. The demonstration of the proposed artifacts is done by means of a case study in a multinational company, which manufactures medical devices, followed by an assessment of this demonstration, supported by the thinking aloud method. From the four research questions, the following results are obtained: (i) identification, analysis and categorization of the main motivating factors for servitization adoption; (ii) proposing a BM architecture according to the service-dominant logic, to help the servitization study; (iii) proposing an innovation process for the company\'s BM, to implement the servitization; and (iv) demonstration and assessment of the proposed BM architecture for servitization. The research offers contributions to the literature of BM and servitization, and to practitioners, proposing the artifacts business model canvas for servitization (BMCS) and the IPIDI process for innovation of BM for servitization, besides some methodological contributions related to design science research and thinking aloud.

The e-learning system is one of many educational methods that allow flexible learner-centered education. It is also an information system based on the Internet. Hence, the increasing use of the e-learning has provided an inter-disciplinary research opportunity to information systems and educational engineering fields. But the benefits of an e-learning are subjected to the organization¡¦s learning environments, readiness and the acceptance of self-directed users. In other words, self-directed learning (SDL) is a prerequisite to e-learning success. It is important to evaluate the readiness of self-directed users and their acceptance of e-learning system. This paper focuses on examining the applicability of both the technology acceptance model (TAM) and the Unified Theory of Acceptance and Use of Technology (UTAUT) in explaining adult self-directed users¡¦ acceptance of e-learning system in a blended learning context. The combination of user groups (adult learners), the technology (e-learning system), and the context (blended learning in a higher education institution) is new to IT acceptance researches. The purpose of this research is to shed light on more effective ways to motivate part-time adult learners to use e-learning system in a higher education institution. This study extends both the TAM and UTAUT models with self-directed learning (SDL) concepts. A questionnaire was developed based on previous works in the areas of technology acceptance and SDL. Based on responses from 433 adult blended learners, both SDL-based TAM and UTAUT models were evaluated in terms of overall fit, explanatory power, and their causal links. Overall, findings suggest that TAM may be more appropriate than UTAUT for examining high SDLRS score user group¡¦s e-learning acceptance behaviour; UTAUT may provide e-learning designers and management teams some crucial suggestions to enhance low SDLRS score users¡¦ system utilization. This study also asserts that the successful transition to an e-learning environment requires that the self-directed learners be actively encouraged and supported by their organizations. Results of this study provide reliable and valid SDL-based TAM and UTAUT instruments for organizations to determine whether their learners had the necessary skills for SDL-based blended learning before investing huge budget and time in a large-scale e-learning project. As more organizations experiment with e-learning systems, the SDL-based TAM and UTAUT models could be used to (a) assess the degree of users¡¦ self-directed readiness before e-learning implementation; and (b) evaluate the factors affecting users¡¦ acceptance of new e-learning system and provide useful remedies for improving system utilization rate after e-learning implementation.

Darbe yra vertinami stochastinio genetinio modelio ir CKLS lygties parametrai pasinaudojant sprendinio stacionariuoju tankiu. Atlikti skaičiavimai parodo, kad SDL parametrai yra ,,gerai" įvertinami, esant pakankamai dideliam stebėjimų skaičiui, pvz.: N = 10 000. Skaičiavimams atlikti sukurta kompiuterinė programa. / In this work estimation of parameters of stochastic genetic model and CKLS equation using process stationary density is presented. The research shows that SDE parameters are estimated "well" when we have large number of observations, e.g. N = 10 000. Application is created to carry out calculations.

Studies have shown a discrepancy between what journalism education provides and what the industry desires. The root of this problem lies in the absence of providing procedural knowledge to students in classrooms. To provide a solution to this issue, this study examined the Self-Directed Learning (SDL) interactive model adopted by the Student Sports Union. Employing a semi-structured in-depth interview, this study examined the process through which eight journalists in the Student Sports Union (SSU) became experts. The results show that the SSU journalists’ SDL model promotes theoretical knowledge, hands-on experience, and an applied skill set for journalism, which are useful for transforming student journalists from novice to expert.

In this thesis, the main focus is on deontic logic as a tool for formal representation of moral reasoning in natural language. The simple standard system of deontic logic (SDL), i.e. the minimal Kripkean modal logic extended with the deontic axiom, stating that necessity (interpreted as obligation) implies possibility (interpreted as permission), has often been considered inadequate for this aim, due to different problems, e.g. the so-called deontic paradoxes. A general survey of deontic logic and the problems with SDL is made in chapter 1. In chapter 2, a system denoted Classical Deontic-Modal logic (CDM1) is defined. In this system, there is a primary obligation operator indexed to sets of possible worlds, and a secondary requirement operator, defined in terms of strictly necessary conditions for fulfilling an obligation. This secondary operator has most of the properties of the necessity operator in SDL. In chapters 3 and 4, it is argued that CDM1 is able to handle the SDL problems presented in chapter 1 in an adequate way, and the treatment of these problems in CDM1 is also compared with their treatment in some other well-known deontic systems. In chapter 5, it is argued that even though the problems related to quantification in modal contexts are relevant to deontic logic, these issues are not specific to deontic logic. In chapter 6, the relations between some controversial features of moral reasoning, such as moral dilemmas and “non-standard” deontic categories like supererogation, and deontic logic are discussed. It is shown how CDM1 can be modified in order to accommodate these features.

Orientador: Walter da Cunha Borelli / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação / Made available in DSpace on 2018-07-23T08:02:09Z (GMT). No. of bitstreams: 1 Macario_CarlaGeovanadoNascimento_M.pdf: 8704471 bytes, checksum: bee9de6493b42d0139961cb43f32cb24 (MD5) Previous issue date: 1997 / Resumo: Este trabalho propõe uma metodologia alternativa para o desenvolvimento e evolução do AIOA, um software para o gerenciamento e análise de dados experimentais, em desenvolvimento na Embrapa. Esta nova metodologia consiste no uso combinado da técnica OMT (Object Modeling Technique) com a linguagem de especificação formal SOL (Specification and Oescription Language), e apresenta facilidades que produzem ga¿n ANTPOT. H¿os no processo de desenvolvimento de software, como a possibilidade de validação e de simulação do sistema, e também a geração de código para sua prototipação. A partir do modelo de classes proposto pela OMT, passa-se à especificação do sistema em SOL, levando-se em conta na elaboração de ambos os modelos, conceitos como reuso, herança e evolução de sistemas. A validação, a simulação e a geração de código do sistema tornam-se possíveis com o uso da ferramenta CASE SOT1(SOL Oesign Tool - Telelogic, Suécia). É apresentada a evolução do ambiente AIOA centralizado até uma versão distribuída, considerando uma arquitetura cliente-servidor com mecanismo CORBA, bem como exemplos de simulação e de validação destes sistemas / Abstract: The present work proposes an alternative methodology for the development and evolution of AIOA, a software environment for the management and analysis of experimental data, being developed at Embrapa, Brazil. This new technique consists of the combined use of OMT (Object Modeling Technique) with the formal specification language SDL (Specification and Description Language), in its 1992 version SDL-92, presenting strong facilities on the software development process, allowing the validation, simulation and eventual code generation for software prototyping. From the system object model and after mapping to SOL-92, the formal specification is generated considering concepts such as reuse, inheritance, and system evolution. The validation, the simulation and code generation of the system is allowed through the use of the CASE tool SOT (SOL Oesign Tool - Telelogic, Sweden). The specification of the centralized AIOA to its evolution to distributed version are presented, validated and simulated. This is followed up with a specialization and validation of thedistributed AIOA, considering an arquitecture client-server with CORBA mechanism / Mestrado / Telecomunicações e Telemática / Mestre em Engenharia Elétrica

Orientador : Walter da Cunha Borelli / Dissertação (mestrado) - Universidade Estadual de Campinas, Faculdade de Engenharia Eletrica e de Computação / Made available in DSpace on 2018-07-31T15:19:09Z (GMT). No. of bitstreams: 1 Guimaraes_RafaelPaoliello_M.pdf: 1024865 bytes, checksum: 71e403fc82a4651fb1f0d61fa6da36be (MD5) Previous issue date: 2001 / Mestrado

This thesis deals with procedural generation techniques and its use in the creation of voxel models. The techniques that have been used are Perlin Noise, Voronoi diagram, L-systems etc. This knowledge is then used to create a world generator for computer game with open world. This game provides players with the ability to modify this world and use its creativity, for example, in building construction. The game, however, will not give to the player all options for free, but for example for build, he or she will first have to find and mine the material. The game has been written in programming language C++ with the use of libraries Boost, SDL and OpenGL.

This paper concerns aliasing removal methods during the shadow displaying. Method of shadow mapping, its principles, procedure and mainly its drawbacks in the form of aliasing development are described. For the removal of this undesirable phenomenon, several aliasing suppressing methods are described - Percentage Closer Filter, Variance Shadow Map, Convulotion Shadow Map, Exponential Shadow Map a Bilateral Filter. I conclude my work with a proposal and implementation of a demonstrative application, which demonstrates the implemented results adequately. Also, the comparison of individual methods on the basis of their quality and computational demands is included.