11 research outputs found

    Endogenously Emergent Information Systems

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    This paper analyzes the concept of “emergence” in the context of information systems and discusses its implications to the IS research. The analysis shows that this literature as¬sumes emergence to be an outcome of exogenous, although, complex design agency, largely omitting endogenous emergence, rising from the complexity of the information system and its operational interaction with its environment. Reflecting the IS perspective, the paper reviews research on endogenous emergence conducted especially in Computer Science and Software Engineering

    Sustainability’s Coming Home: Preliminary Design Principles for the Sustainable Smart District

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    Consumer trends like local consumption, sharing of property, and environmental awareness change our habits and thereby our surroundings. These trends have their origin in our direct environment, in the districts of our city or community, where we live and socialize. Cities and districts are changing to “smart cities” and “smart districts” as a part of the ongoing digitalization. These changes offer the possibility to entrench the idea of sustainability and build a platform-based ecosystem for a sustainable smart district. This research aims to identify guidelines in form of preliminary design principles for sustainable smart districts. To achieve this, we conduct a structured literature review. On this basis, we derive and develop preliminary design principles with the help of semistructured interviews and a non-representative sample of the German population. The resulting nine preliminary design principles describe a first insight into the design of sustainable smart districts

    Contributions aux systèmes répartis en environnements ubiquitaires : adaptation, sensibilité au contexte et tolérance aux fautes

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    D'années en années, nous observons l'arrivée sur le marche d'ordinateurs personnels de plus en plus petits pour des utilisateurs de plus en plus nombreux, ainsi des assistants personnels numériques et des objets dits connectés, en passant par les téléphones mobiles. Tous ces dispositifs tendent à être interchangeables du point de vue des ressources en mémoire, en calcul et en connectivité : par exemple, les téléphones mobiles sont devenus des équipements informatiques de moins en moins spécialisés ou de plus en plus universels et font dorénavant office en la matière de portails d'accès aux capteurs présents dans l'environnement immédiat de l'utilisateur. L'enjeu abordé dans nos travaux est la construction de systèmes répartis incluant ces nouveaux dispositifs matériels. L'objectif de mes recherches est la conception des paradigmes d'intermédiation génériques sous-jacents aux applications réparties de plus en plus ubiquitaires. Plus particulièrement, la problématique générale de mes travaux est la définition du rôle des intergiciels dans l'intégration des dispositifs mobiles et des objets connectés dans les architectures logicielles réparties. Ces architectures logicielles reposaient très majoritairement sur des infrastructures logicielles fixes au début des travaux présentés dans ce manuscrit. Dans ce manuscrit, je décris mes travaux sur trois sujets : 1) l'adaptation des applications réparties pour la continuité de service pendant les déconnexions, 2) la gestion des informations du contexte d'exécution des applications réparties pour leur sensibilité au contexte, et 3) les mécanismes de détection des entraves dans les environnements fortement dynamiques tels que ceux construits avec des réseaux mobiles spontanés. Sur le premier sujet, nous fournissons une couche intergicielle générique pour la gestion des aspects répartis de la gestion des déconnexions en utilisant une stratégie d'adaptation collaborative dans les architectures à base d'objets et de composants. Sur le deuxième sujet, nous étudions les paradigmes architecturaux pour la construction d'un service de gestion de contexte générique, afin d'adresser la diversité des traitements (fusion et agrégation, corrélation, détection de situation par apprentissage, etc.), puis nous adressons le problème de la distribution des informations de contexte aux différentes échelles de l'Internet des objets. Enfin, sur le troisième sujet, nous commençons par la détection des modes de fonctionnement pour l'adaptation aux déconnexions afin de faire la différence, lorsque cela est possible, entre une déconnexion et une défaillance, et ensuite nous spécifions et construisons un service de gestion de groupe partitionnable. Ce service est assez fort pour interdire la construction de partitions ne correspondant pas à la réalité de l'environnement à un instant donné et est assez faible pour être mis en oeuvre algorithmiquemen

    Sustainability's Coming Home : Preliminary Design Principles for the Sustainable Smart District

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    Consumer trends like local consumption, sharing of property, and environmental awareness change our habits and thereby our surroundings. These trends have their origin in our direct environment, in the districts of our city or community, where we live and socialize. Cities and districts are changing to “smart cities” and “smart districts” as a part of the ongoing digitalization. These changes offer the possibility to entrench the idea of sustainability and build a platform-based ecosystem for a sustainable smart district. This research aims to identify guidelines in form of preliminary design principles (PDPs) for sustainable smart districts. To achieve this, we conduct a structured literature review. On this basis, we derive and develop PDPs with the help of semi-structured interviews and a non-representative sample of the German population. The resulting nine PDPs describe a first insight into the design of sustainable smart districts

    An architecture for user preference-based IoT service selection in cloud computing using mobile devices for smart campus

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    The Internet of things refers to the set of objects that have identities and virtual personalities operating in smart spaces using intelligent interfaces to connect and communicate within social environments and user context. Interconnected devices communicating to each other or to other machines on the network have increased the number of services. The concepts of discovery, brokerage, selection and reliability are important in dynamic environments. These concepts have emerged as an important field distinguished from conventional distributed computing by its focus on large-scale resource sharing, delivery and innovative applications. The usage of Internet of Things technology across different service provisioning environments has increased the challenges associated with service selection and discovery. Although a set of terms can be used to express requirements for the desired service, a more detailed and specific user interface would make it easy for the users to express their requirements using high-level constructs. In order to address the challenge of service selection and discovery, we developed an architecture that enables a representation of user preferences and manipulates relevant descriptions of available services. To ensure that the key components of the architecture work, algorithms (content-based and collaborative filtering) derived from the architecture were proposed. The architecture was tested by selecting services using content-based as well as collaborative algorithms. The performances of the algorithms were evaluated using response time. Their effectiveness was evaluated using recall and precision. The results showed that the content-based recommender system is more effective than the collaborative filtering recommender system. Furthermore, the results showed that the content-based technique is more time-efficient than the collaborative filtering technique

    Human Practice. Digital Ecologies. Our Future. : 14. Internationale Tagung Wirtschaftsinformatik (WI 2019) : Tagungsband

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    Erschienen bei: universi - Universitätsverlag Siegen. - ISBN: 978-3-96182-063-4Aus dem Inhalt: Track 1: Produktion & Cyber-Physische Systeme Requirements and a Meta Model for Exchanging Additive Manufacturing Capacities Service Systems, Smart Service Systems and Cyber- Physical Systems—What’s the difference? Towards a Unified Terminology Developing an Industrial IoT Platform – Trade-off between Horizontal and Vertical Approaches Machine Learning und Complex Event Processing: Effiziente Echtzeitauswertung am Beispiel Smart Factory Sensor retrofit for a coffee machine as condition monitoring and predictive maintenance use case Stakeholder-Analyse zum Einsatz IIoT-basierter Frischeinformationen in der Lebensmittelindustrie Towards a Framework for Predictive Maintenance Strategies in Mechanical Engineering - A Method-Oriented Literature Analysis Development of a matching platform for the requirement-oriented selection of cyber physical systems for SMEs Track 2: Logistic Analytics An Empirical Study of Customers’ Behavioral Intention to Use Ridepooling Services – An Extension of the Technology Acceptance Model Modeling Delay Propagation and Transmission in Railway Networks What is the impact of company specific adjustments on the acceptance and diffusion of logistic standards? Robust Route Planning in Intermodal Urban Traffic Track 3: Unternehmensmodellierung & Informationssystemgestaltung (Enterprise Modelling & Information Systems Design) Work System Modeling Method with Different Levels of Specificity and Rigor for Different Stakeholder Purposes Resolving Inconsistencies in Declarative Process Models based on Culpability Measurement Strategic Analysis in the Realm of Enterprise Modeling – On the Example of Blockchain-Based Initiatives for the Electricity Sector Zwischenbetriebliche Integration in der Möbelbranche: Konfigurationen und Einflussfaktoren Novices’ Quality Perceptions and the Acceptance of Process Modeling Grammars Entwicklung einer Definition für Social Business Objects (SBO) zur Modellierung von Unternehmensinformationen Designing a Reference Model for Digital Product Configurators Terminology for Evolving Design Artifacts Business Role-Object Specification: A Language for Behavior-aware Structural Modeling of Business Objects Generating Smart Glasses-based Information Systems with BPMN4SGA: A BPMN Extension for Smart Glasses Applications Using Blockchain in Peer-to-Peer Carsharing to Build Trust in the Sharing Economy Testing in Big Data: An Architecture Pattern for a Development Environment for Innovative, Integrated and Robust Applications Track 4: Lern- und Wissensmanagement (e-Learning and Knowledge Management) eGovernment Competences revisited – A Literature Review on necessary Competences in a Digitalized Public Sector Say Hello to Your New Automated Tutor – A Structured Literature Review on Pedagogical Conversational Agents Teaching the Digital Transformation of Business Processes: Design of a Simulation Game for Information Systems Education Conceptualizing Immersion for Individual Learning in Virtual Reality Designing a Flipped Classroom Course – a Process Model The Influence of Risk-Taking on Knowledge Exchange and Combination Gamified Feedback durch Avatare im Mobile Learning Alexa, Can You Help Me Solve That Problem? - Understanding the Value of Smart Personal Assistants as Tutors for Complex Problem Tasks Track 5: Data Science & Business Analytics Matching with Bundle Preferences: Tradeoff between Fairness and Truthfulness Applied image recognition: guidelines for using deep learning models in practice Yield Prognosis for the Agrarian Management of Vineyards using Deep Learning for Object Counting Reading Between the Lines of Qualitative Data – How to Detect Hidden Structure Based on Codes Online Auctions with Dual-Threshold Algorithms: An Experimental Study and Practical Evaluation Design Features of Non-Financial Reward Programs for Online Reviews: Evaluation based on Google Maps Data Topic Embeddings – A New Approach to Classify Very Short Documents Based on Predefined Topics Leveraging Unstructured Image Data for Product Quality Improvement Decision Support for Real Estate Investors: Improving Real Estate Valuation with 3D City Models and Points of Interest Knowledge Discovery from CVs: A Topic Modeling Procedure Online Product Descriptions – Boost for your Sales? Entscheidungsunterstützung durch historienbasierte Dienstreihenfolgeplanung mit Pattern A Semi-Automated Approach for Generating Online Review Templates Machine Learning goes Measure Management: Leveraging Anomaly Detection and Parts Search to Improve Product-Cost Optimization Bedeutung von Predictive Analytics für den theoretischen Erkenntnisgewinn in der IS-Forschung Track 6: Digitale Transformation und Dienstleistungen Heuristic Theorizing in Software Development: Deriving Design Principles for Smart Glasses-based Systems Mirroring E-service for Brick and Mortar Retail: An Assessment and Survey Taxonomy of Digital Platforms: A Platform Architecture Perspective Value of Star Players in the Digital Age Local Shopping Platforms – Harnessing Locational Advantages for the Digital Transformation of Local Retail Outlets: A Content Analysis A Socio-Technical Approach to Manage Analytics-as-a-Service – Results of an Action Design Research Project Characterizing Approaches to Digital Transformation: Development of a Taxonomy of Digital Units Expectations vs. Reality – Benefits of Smart Services in the Field of Tension between Industry and Science Innovation Networks and Digital Innovation: How Organizations Use Innovation Networks in a Digitized Environment Characterising Social Reading Platforms— A Taxonomy-Based Approach to Structure the Field Less Complex than Expected – What Really Drives IT Consulting Value Modularity Canvas – A Framework for Visualizing Potentials of Service Modularity Towards a Conceptualization of Capabilities for Innovating Business Models in the Industrial Internet of Things A Taxonomy of Barriers to Digital Transformation Ambidexterity in Service Innovation Research: A Systematic Literature Review Design and success factors of an online solution for cross-pillar pension information Track 7: IT-Management und -Strategie A Frugal Support Structure for New Software Implementations in SMEs How to Structure a Company-wide Adoption of Big Data Analytics The Changing Roles of Innovation Actors and Organizational Antecedents in the Digital Age Bewertung des Kundennutzens von Chatbots für den Einsatz im Servicedesk Understanding the Benefits of Agile Software Development in Regulated Environments Are Employees Following the Rules? On the Effectiveness of IT Consumerization Policies Agile and Attached: The Impact of Agile Practices on Agile Team Members’ Affective Organisational Commitment The Complexity Trap – Limits of IT Flexibility for Supporting Organizational Agility in Decentralized Organizations Platform Openness: A Systematic Literature Review and Avenues for Future Research Competence, Fashion and the Case of Blockchain The Digital Platform Otto.de: A Case Study of Growth, Complexity, and Generativity Track 8: eHealth & alternde Gesellschaft Security and Privacy of Personal Health Records in Cloud Computing Environments – An Experimental Exploration of the Impact of Storage Solutions and Data Breaches Patientenintegration durch Pfadsysteme Digitalisierung in der Stressprävention – eine qualitative Interviewstudie zu Nutzenpotenzialen User Dynamics in Mental Health Forums – A Sentiment Analysis Perspective Intent and the Use of Wearables in the Workplace – A Model Development Understanding Patient Pathways in the Context of Integrated Health Care Services - Implications from a Scoping Review Understanding the Habitual Use of Wearable Activity Trackers On the Fit in Fitness Apps: Studying the Interaction of Motivational Affordances and Users’ Goal Orientations in Affecting the Benefits Gained Gamification in Health Behavior Change Support Systems - A Synthesis of Unintended Side Effects Investigating the Influence of Information Incongruity on Trust-Relations within Trilateral Healthcare Settings Track 9: Krisen- und Kontinuitätsmanagement Potentiale von IKT beim Ausfall kritischer Infrastrukturen: Erwartungen, Informationsgewinnung und Mediennutzung der Zivilbevölkerung in Deutschland Fake News Perception in Germany: A Representative Study of People’s Attitudes and Approaches to Counteract Disinformation Analyzing the Potential of Graphical Building Information for Fire Emergency Responses: Findings from a Controlled Experiment Track 10: Human-Computer Interaction Towards a Taxonomy of Platforms for Conversational Agent Design Measuring Service Encounter Satisfaction with Customer Service Chatbots using Sentiment Analysis Self-Tracking and Gamification: Analyzing the Interplay of Motivations, Usage and Motivation Fulfillment Erfolgsfaktoren von Augmented-Reality-Applikationen: Analyse von Nutzerrezensionen mit dem Review-Mining-Verfahren Designing Dynamic Decision Support for Electronic Requirements Negotiations Who is Stressed by Using ICTs? A Qualitative Comparison Analysis with the Big Five Personality Traits to Understand Technostress Walking the Middle Path: How Medium Trade-Off Exposure Leads to Higher Consumer Satisfaction in Recommender Agents Theory-Based Affordances of Utilitarian, Hedonic and Dual-Purposed Technologies: A Literature Review Eliciting Customer Preferences for Shopping Companion Apps: A Service Quality Approach The Role of Early User Participation in Discovering Software – A Case Study from the Context of Smart Glasses The Fluidity of the Self-Concept as a Framework to Explain the Motivation to Play Video Games Heart over Heels? An Empirical Analysis of the Relationship between Emotions and Review Helpfulness for Experience and Credence Goods Track 11: Information Security and Information Privacy Unfolding Concerns about Augmented Reality Technologies: A Qualitative Analysis of User Perceptions To (Psychologically) Own Data is to Protect Data: How Psychological Ownership Determines Protective Behavior in a Work and Private Context Understanding Data Protection Regulations from a Data Management Perspective: A Capability-Based Approach to EU-GDPR On the Difficulties of Incentivizing Online Privacy through Transparency: A Qualitative Survey of the German Health Insurance Market What is Your Selfie Worth? A Field Study on Individuals’ Valuation of Personal Data Justification of Mass Surveillance: A Quantitative Study An Exploratory Study of Risk Perception for Data Disclosure to a Network of Firms Track 12: Umweltinformatik und nachhaltiges Wirtschaften Kommunikationsfäden im Nadelöhr – Fachliche Prozessmodellierung der Nachhaltigkeitskommunikation am Kapitalmarkt Potentiale und Herausforderungen der Materialflusskostenrechnung Computing Incentives for User-Based Relocation in Carsharing Sustainability’s Coming Home: Preliminary Design Principles for the Sustainable Smart District Substitution of hazardous chemical substances using Deep Learning and t-SNE A Hierarchy of DSMLs in Support of Product Life-Cycle Assessment A Survey of Smart Energy Services for Private Households Door-to-Door Mobility Integrators as Keystone Organizations of Smart Ecosystems: Resources and Value Co-Creation – A Literature Review Ein Entscheidungsunterstützungssystem zur ökonomischen Bewertung von Mieterstrom auf Basis der Clusteranalyse Discovering Blockchain for Sustainable Product-Service Systems to enhance the Circular Economy Digitale Rückverfolgbarkeit von Lebensmitteln: Eine verbraucherinformatische Studie Umweltbewusstsein durch audiovisuelles Content Marketing? Eine experimentelle Untersuchung zur Konsumentenbewertung nachhaltiger Smartphones Towards Predictive Energy Management in Information Systems: A Research Proposal A Web Browser-Based Application for Processing and Analyzing Material Flow Models using the MFCA Methodology Track 13: Digital Work - Social, mobile, smart On Conversational Agents in Information Systems Research: Analyzing the Past to Guide Future Work The Potential of Augmented Reality for Improving Occupational First Aid Prevent a Vicious Circle! The Role of Organizational IT-Capability in Attracting IT-affine Applicants Good, Bad, or Both? Conceptualization and Measurement of Ambivalent User Attitudes Towards AI A Case Study on Cross-Hierarchical Communication in Digital Work Environments ‘Show Me Your People Skills’ - Employing CEO Branding for Corporate Reputation Management in Social Media A Multiorganisational Study of the Drivers and Barriers of Enterprise Collaboration Systems-Enabled Change The More the Merrier? The Effect of Size of Core Team Subgroups on Success of Open Source Projects The Impact of Anthropomorphic and Functional Chatbot Design Features in Enterprise Collaboration Systems on User Acceptance Digital Feedback for Digital Work? Affordances and Constraints of a Feedback App at InsurCorp The Effect of Marker-less Augmented Reality on Task and Learning Performance Antecedents for Cyberloafing – A Literature Review Internal Crowd Work as a Source of Empowerment - An Empirical Analysis of the Perception of Employees in a Crowdtesting Project Track 14: Geschäftsmodelle und digitales Unternehmertum Dividing the ICO Jungle: Extracting and Evaluating Design Archetypes Capturing Value from Data: Exploring Factors Influencing Revenue Model Design for Data-Driven Services Understanding the Role of Data for Innovating Business Models: A System Dynamics Perspective Business Model Innovation and Stakeholder: Exploring Mechanisms and Outcomes of Value Creation and Destruction Business Models for Internet of Things Platforms: Empirical Development of a Taxonomy and Archetypes Revitalizing established Industrial Companies: State of the Art and Success Principles of Digital Corporate Incubators When 1+1 is Greater than 2: Concurrence of Additional Digital and Established Business Models within Companies Special Track 1: Student Track Investigating Personalized Price Discrimination of Textile-, Electronics- and General Stores in German Online Retail From Facets to a Universal Definition – An Analysis of IoT Usage in Retail Is the Technostress Creators Inventory Still an Up-To-Date Measurement Instrument? Results of a Large-Scale Interview Study Application of Media Synchronicity Theory to Creative Tasks in Virtual Teams Using the Example of Design Thinking TrustyTweet: An Indicator-based Browser-Plugin to Assist Users in Dealing with Fake News on Twitter Application of Process Mining Techniques to Support Maintenance-Related Objectives How Voice Can Change Customer Satisfaction: A Comparative Analysis between E-Commerce and Voice Commerce Business Process Compliance and Blockchain: How Does the Ethereum Blockchain Address Challenges of Business Process Compliance? Improving Business Model Configuration through a Question-based Approach The Influence of Situational Factors and Gamification on Intrinsic Motivation and Learning Evaluation von ITSM-Tools für Integration und Management von Cloud-Diensten am Beispiel von ServiceNow How Software Promotes the Integration of Sustainability in Business Process Management Criteria Catalog for Industrial IoT Platforms from the Perspective of the Machine Tool Industry Special Track 3: Demos & Prototyping Privacy-friendly User Location Tracking with Smart Devices: The BeaT Prototype Application-oriented robotics in nursing homes Augmented Reality for Set-up Processe Mixed Reality for supporting Remote-Meetings Gamification zur Motivationssteigerung von Werkern bei der Betriebsdatenerfassung Automatically Extracting and Analyzing Customer Needs from Twitter: A “Needmining” Prototype GaNEsHA: Opportunities for Sustainable Transportation in Smart Cities TUCANA: A platform for using local processing power of edge devices for building data-driven services Demonstrator zur Beschreibung und Visualisierung einer kritischen Infrastruktur Entwicklung einer alltagsnahen persuasiven App zur Bewegungsmotivation für ältere Nutzerinnen und Nutzer A browser-based modeling tool for studying the learning of conceptual modeling based on a multi-modal data collection approach Exergames & Dementia: An interactive System for People with Dementia and their Care-Network Workshops Workshop Ethics and Morality in Business Informatics (Workshop Ethik und Moral in der Wirtschaftsinformatik – EMoWI’19) Model-Based Compliance in Information Systems - Foundations, Case Description and Data Set of the MobIS-Challenge for Students and Doctoral Candidates Report of the Workshop on Concepts and Methods of Identifying Digital Potentials in Information Management Control of Systemic Risks in Global Networks - A Grand Challenge to Information Systems Research Die Mitarbeiter von morgen - Kompetenzen künftiger Mitarbeiter im Bereich Business Analytics Digitaler Konsum: Herausforderungen und Chancen der Verbraucherinformati

    Introducing norms into practical reasoning agents

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    As distributed electronic systems grow to include thousands of components, from grid to peer-to-peer nodes, from (Semantic) Web services to web-apps to computation in the cloud, governance of such systems is becoming a real challenge. Modern approaches ensuring appropriate individual entities' behaviour in distributed systems, which comes from multi-agent systems (MAS) research, use norms (or regulations or policies) and/or communication protocols to express a different layer of desired or undesired states. From the individuals perspective, an agent needs to be able to function in an environment where norms act as behavioural restrictions or guidelines as to what is appropriate, not only for the individual but also for the community. In the literature the concept of norms has been defined from several perspectives: as a rule or standard of behaviour shared by members of a social group, as an authoritative rule or standard by which something is judged, approved or disapproved, as standards of right and wrong, beauty and ugliness, and truth and falsehood, or even as a model of what should exist or be followed, or an average of what currently does exist in some context. Currently there exist in the literature: 1) some treatments that formally connect the deontic aspects of norms with their operationalisation; 2) some treatments that properly distinguish between abstract norms and their (multiple) instantiations at runtime; 3) little work that formalises the operational semantics in a way that ensures flexibility in their translation to actual implementations while ensuring unambiguous interpretations of the norms; 4) little work that is suitable for both institutional-level norm monitoring and individual agent norm-aware reasoning to ensure that both are aligned; 5) few works that explore how the norms may affect the decision making process of an agent when the process includes planning mechanisms at runtime for means-ends reasoning. However, currently there is no work that includes both a formalism and an implementation covering 1-5 altogether. This thesis presents work towards the above five areas. We give a proposal to bridge the gap between a single norm formalisation and the actual mechanisms used for norm-aware planning, in order to create a normative practical reasoning mechanism. One way to do this is by reducing deontic-based norm definitions to temporal logic formulas which, in turn, can be translated into planning operational semantics. Based on these semantics, we create a mechanism to support practical normative reasoning that can be used by agents to produce and evaluate their plans. We construct a norm-oriented agent that takes into consideration operationalised norms during the plan generation phase, using them as guidelines to decide the agents future action path. To make norms influence plan generation, our norm operational semantics is expressed as an extension of the planning domain, acting as a form of temporal restrictions over the trajectories (plans) computed by the planner. We consider two approaches to do so. One implementing the semantics by using planning with constraints through paths and the other by directly translating the norms into domain knowledge to be included into the planning domain. We explore a scenario based on traffic laws in order to demonstrate the usability of our proposal. We also show how our normative frameworks are successfullyintegrated into an existing BDI agent implementation, 2APL. For each approach taken, we present quantitative experimental results and illustrate the opportunities for further research.La gestión de sistemas electrónicos distribuidos se está convirtiendo en un auténtico reto a medida que dichos sistemas crecen incluyendo múltiples componentes, desde nodos grid a peer-to-peer, servicios de la Web semántica, aplicaciones web o computación en la nube. Los enfoques modernos que aseguran un comportamiento adecuado de las entidades individuales en sistemas distribuidos, y que provienen de la investigación en sistemas multi-agentes (MAS), utilizan normas (o regulaciones o políticas) para expresar un nivel diferente de estados deseados o no deseados. Desde la perspectiva del individuo, un agente necesita poder funcionar en un entorno donde las normas actúen como restricciones o directrices de comportamiento respecto a lo que es apropiado,no únicamente para el individuo sino para la comunidad en su conjunto. En la literatura el concepto de norma se ha definido desde varias perspectivas: como una regla o estándar de comportamiento compartida por los miembros de un grupo social, como estándar de lo correcto o incorrecto, belleza o fealdad, o incluso, como un modelo que debería existir o ser seguido. En la actualidad se pueden encontrar en la literatura: 1) trabajos que conectan formalmente los aspectos deónticos de las normas con su operacionalización; 2) trabajos que distinguen adecuadamente entre normas abstractas y sus (múltiples) instanciaciones en tiempo de ejecución; 3) algún ejemplo que formaliza las semánticas operacionales de manera que se asegura la flexibilidad en su traducción a implementaciones garantizando a su vez interpretaciones no ambiguas de las normas; 4) algún trabajo que se adecúa tanto a la monitorización de normas a nivel institucional como al razonamiento basado en normas a nivel de los agentes individuales y que asegura que ambos están alineados; 5) algún trabajo que explora como las normas pueden afectar al proceso de toma de decisiones de un agente cuando el proceso incluye mecanismos de planificación en tiempo real para un razonamiento medios-fines. Sin embargo, actualmente no existe ningún enfoque que incluya formalismos e implementaciones abordando los 5 puntos al mismo tiempo. La presente tesis propone contribuciones en las cinco áreas mencionadas. Se presenta una propuesta para establecer un enlace entre la formalización de una norma y los mecanismos utilizados en la planificación basada en normas con el objetivo de crear un mecanismo de razonamiento práctico normativo. Una forma de conseguirlo es mediante la reducción de las definiciones de normas basadas en deóntica a fórmulas de lógica temporal que, a su vez, pueden ser traducidas a semánticas operacionales de planificación. Basándose en estas semánticas, se ha creado un mecanismo para dar soporte al razonamiento normativo práctico que puede ser utilizado por los agentes para producir y evaluar sus planes. Se ha construido un agente orientado a normas que tiene en consideración las normas operacionalizadas durante la fase de generación de planes, utilizándolas como directrices para decidir el futuro curso de acción del agente. Nuestras semánticas operacionales de normas se expresan como una extensión del dominio de la planificación, actuando como una forma de restricciones temporales sobre las trayectorias (planes) computadas por el planificador. Se han considerado dos enfoques para realizarlo. Uno, implementando las semánticas utilizando planificación con restricciones a través de caminos y otro, traduciendo directamente las normas en conocimiento del dominio que se incluirá en el dominio de planificación. Se explora un escenario basado en normas de circulación de tráfico para demostrar la usabilidad de nuestra propuesta. Se mostrará también como nuestro marco normativo se integra satisfactoriamente en una implementación existente de agentes BDI, 2APL. Para cada enfoque considerado, se presentan resultados experimentales cuantitativos y se ilustran las oportunidades para futuros trabajos de investigación.A mesura que els sistemes electrònics distribuïts creixen per incloure milers de components,des de nodes grid a peer-to-peer fins a serveis de la Web semàntica, aplicacions web o computació al núvol, la gestió d’aquests sistemes s’està convertint en un autèntic repte. Els enfocs moderns que asseguren el comportament apropiat de lesentitats individuals en sistemes distribuïts, que prové de la recerca en sistemes multiagents, utilitzen normes (o regulacions o polítiques) i/o protocols de comunicació perexpressar una capa diferent d’estats desitjats o no desitjats. Des de la perspectiva de l’individu, un agent necessita poder funcionar en un entorn on les normes actuïn coma restriccions de comportament o guies respecte al que és apropiat, no només per al individu sinó per a la comunitat.En la literatura el concepte de normes s’ha tractat des de diferents perspectives: com una regla o estàndard de comportament compartida pels membres d’un grup social, com una regla o estàndard autoritari pel qual alguna cosa és jutjada, aprovada o desaprovada,com estàndard del correcte i del incorrecte, bellesa i lletjor, veritat i falsedat, o inclús com un model del que hauria d’existir o ser seguit, o com una mitjana del que actualment existeix en un context donat. Actualment trobem en la literatura:1) alguns tractaments que connecten formalment els aspectes deòntics de les normes amb la seva operacionalització; 2) alguns tractaments que distingeixen adequadament entre normes abstractes i les seves (múltiples) instanciacions en temps real; 3) alguns exemples que formalitzen les semàntiques operacionals de manera que asseguren flexibilitaten la seva traducció a implementacions garantint interpretacions no ambigües de les normes; 4) alguns treballs adequats per a la monitorització de normes a nivell institucional i per al raonament basat en normes en agents individuals assegurant que ambdós estan alineats; 5) alguns treballs que exploren com les normes poden afectar el procés de presa de decisions d’un agent quan el procés inclou mecanismes de planificació en temps real per a raonament mitjans-finalitats. D’altra banda, actualment noexisteix cap enfoc que inclogui formalismes i implementacions cobrint els punts 1-5 a la vegada.Aquesta tesi presenta contribucions en les cinc àrees esmentades. Presentem una proposta per establir un enllaç entre la formalització d’una norma i els mecanismes emprats en la planificació basada en normes per tal de crear un mecanisme de raonament pràctic normatiu. Una manera d’aconseguir-ho és reduint les definicions de normes deòntiques a fórmules de lògica temporal les quals poden ser traduïdes asemàntiques de planificació operacional. Basant-nos en aquestes semàntiques, hem creat un mecanisme per donar suport al raonament normatiu pràctic que pot ser emprat per agents per produir i avaluar els seus plans. Hem construït un agent orientat a normes que pren en consideració durant la fase de generació de plans les normes operacionalitzades, utilitzant-les com a guia per decidir el futur curs d’acció de l’agent.Per tal de fer que les normes influenciïn la generació de plans, les nostres semàntiques operacionals de normes s’expressen com una extensió del domini de la planificació,actuant com una mena de restriccions temporals sobre les trajectòries (plans) computadespel planificador. Considerem dos enfocs per dur-ho a terme. Un implementant les semàntiques emprant planificació amb restriccions per mitjà de camins i l’altre traduint directament les normes en coneixement del domini a ser inclòs en el domini de planificació. Explorem un escenari basat en les normes de circulació de tràfic per demostrar la usabilitat de la nostra proposta. Mostrarem també com el nostre marc normatiu s’integra satisfactòriament en una implementació existent d’agentBDI, 2APL. Per cada enfoc considerat, presentem resultats experimentals quantitatius i il.lustrem les oportunitats per treballs de recerca futurs
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