1,041 research outputs found
Architectures for integration of information systems under conditions of dynamic reconfiguration of virtual enterprises
Tese Doutoramento Programa Doutoral em Industrial and Systems EngineeringThe aim of this thesis is to explore Architectures of information systems Integration under
conditions of dynamic reconfiguration of Virtual Enterprises. The main challenge that we identify
and which formed the basis of the research is that information technologies alone cannot support
efficiently and effectively the human knowledge and their natural way of interacting.
Already from Sausurre (1916) it could be argued that part of knowledge resides in person, and
the attempt to try to model it is sufficient for it to be misrepresented. And this is the motto of all
this work. Enhance the capabilities of emerging technologies, but in the sense that allow humanto-
human interaction, having the information system merely a means to make this possible.
Thus we argue that a communicational architecture of information systems integration (where
Pragmatics mechanisms are enabled) in virtual enterprises in dynamic reconfiguration scenarios,
are better able than the existing transactional architectures.
We propose a communicational architecture able to achieve an effective integration of
information systems, as well as designing its logical and functional model. We also define the
necessary semiotic framework in order to a communicational integration architecture could be
efficient and effective.
We implemented two prototypes to demonstrate the applicability of the proposed architecture.
The demonstration of the research hypothesis was demonstrated with the realization of two
experimentations where the ontologies have been unable to resolve disagreements or absences
of opinion inherent in people who collaborated. This was overcome with the implementation of
mechanisms that allow the co-creation between members of the group that participated in the
trial.O objectivo desta tese é explorar Arquitecturas de Integração de Sistemas de Informação em
condições de Reconfiguração Dinâmica de Empresas Virtuais. O principal desafio que
identificamos e que serviu de base da pesquisa é que as tecnologias de informação por si só não
conseguem suportar de forma eficiente e efectiva o conhecimento humano e a sua forma natural
de interagir.
Já Sausurre (1916) defendia que parte do conhecimento residirá sempre na pessoa, e a
tentativa de o tentar modelar é suficiente para que seja deturpado. E esse é o mote de todo este
trabalho. Enaltecer as capacidades das tecnologias emergentes mas no sentido de elas
permitirem a interacção homem-to-homem, sendo o sistema de informação meramente um meio
para que tal seja possÃvel.
Argumentamos por isso que uma arquitectura comunicacional de integração de sistemas de
informação, onde Pragmatics mechanisms are enabled, em empresas virtuais em cenários de
reconfiguração dinâmica, são mais capazes que as actuais arquitecturas transacionais.
Propomos para isso uma arquitectura comunicacional capaz de conseguir uma integração
efectiva de sistemas de informação, assim como desenhamos o seu modelo lógico e funcional.
Definimos ainda o quadro semiótico necessário para que uma arquitectura comunicacional de
integração seja eficiente e effectiva.
Implementamos dois protótipos capazes de demonstrar a aplicabilidade da arquitectura
proposta. A demonstração da hipótese de pesquisa ficou demonstrada com a realização de uma
experimentação onde as ontologias se mostraram incapazes de resolver discordâncias ou
ausências de opinião inerentes às pessoas que colaboram. Tal foi superado com a aplicação de
mecanismos que permitiram a co-criação entre os membros do grupo que realizou a
experimentação
Mediation, expansion and immediacy: how online communities revolutionize information access in the tourism sector
Enabled by Information & Communication Technologies (ICT), online tourism communities are in the process of revolutionizing the way information is shared and distributed in the travel industry. Interpreting online tourism communities as a particular kind of information system, previous research in this area has argued that tourism communities may enhance the quality of information available to tourists, thus improving their subsequent travel experience. Quality was defined in terms of timeliness, completeness, structure and personalization. In this paper, we review this notion of quality and argue that particularly valuable information coming from tourism communities often meets stronger quality characteristics related to information relevance and impact, namely mediation (information helps establish an own, independent perspective on destinations that is not primarily mediated by guide books and travel-related media), expansion (information provided is highly relevant even though it not directly related to the original inquiry to the community) and immediacy (information is not caught in the time-space dilemma of guide books and similarly sedate publications). The three quality characteristics were derived from an empirical investigation of information shared in a wellestablished online tourism community focusing on traveling in Australia. The paper concludes with a discussion of how mobile information systems, such as laptops and personal digital assistants, are changing the way travelers interact with online communities
A Cloud-Based Architecture with embedded Pragmatics Renderer for Ubiquitous and Cloud Manufacturing
The paper presents a Cloud-based architecture for Ubiquitous and Cloud Manufacturing as a multilayer communicational architecture designated as the Communicational Architecture. It is characterised as (a) rich client interfaces (Rich Internet Application) with sufficient interaction to allow user agility and competence, (b) multimodal, for multiple client device classes support and (c) communicational to allow pragmatics, where human-to-human real interaction is completely supported. The main innovative part of this architecture is sustained by a semiotic framework organised on three main logical levels: (a) device level, which allows the user `to use' pragmatics with the system, (b) application level which results for a set of tools which allows users pragmatics-based interaction and (c) application server level that implements the Pragmatics renderer,a pragmatics supporting engine that supports all pragmatics services. The Pragmatics renderer works as a communication enabler, and consists of a set of integrated collaboration technology that makes the bridge between the user/devices and the `system'. A federated or community cloud is developed using a particular cloud REST ful Application Programming Interface that supports (cloud) services registration, composition and governance (pragmatics services behaves as SaaS in the cloud).The work is supported by the Portuguese National Funding Agency for science, research and technology (FCT), (1) Grant No. UID/CEC/00319/2013, and (2) `Ph.D. Scholarship Grant' reference SFRH/BD/85672/2012.info:eu-repo/semantics/publishedVersio
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Problem solving methods in a global networked age
We believe that the future for problem solving method (PSM) derived work is very promising. In short, PSMs provide a solid foundation for creating a semantic layer supporting planetary-scale networks. Moreover, within a world-scale network where billions services are used and created by billions of parties in ad hoc dynamic fashion we believe that PSM-based mechanisms provide the only viable approach to dealing the sheer scale systematically. Our current experiments in this area are based upon a generic ontology for describing Web services derived from earlier work on PSMs. We outline how platforms based on our ontology can support large-scale networked interactivity in three main areas. Within a large European project we are able to map business level process descriptions to semantic Web service descriptions, to enable business experts to manage and use enterprise processes running in corporate information technology systems. Although highly successful, Web service-based applications predominately run behind corporate firewalls and are far less pervasive on the general Web. Within a second large European project we are extending our semantic service work using the principles underlying the Web and Web 2.0 to transform the Web from a Web of data to one where services are managed and used at large scale. Significant initiatives are now underway in North America, Asia, and Europe to design a new Internet using a 'clean-slate' approach to fulfill the demands created by new modes of use and the additional 3 billion users linked to mobile phones. Our investigations within the European-based Future Internet program indicate that a significant opportunity exists for our PSM-derived work to address the key challenges currently identified: scalability, trust, interoperability, pervasive usability, and mobility. We outline one PSM-derived approach as an exemplar
Rethinking tourism destinations: collaborative network models for the tourist 2.0
In the increasingly saturated tourism market, an effective tourism destination management is essential to support competitive and sustainable growth. The topic becomes interesting in light of the spread of the collaborative network (CN) organisational models and the massive diffusion of web 2.0 and mobile technology. The formers have proven to give concrete opportunities of development in many industrial sectors, the latter has been changing the way tourists experience a destination. Even if several case studies of CNs in tourism are known, a comprehensive study of how tourism destinations can benefit of CN models and enabling technologies is not present; especially in the effort to help tourism destinations in setting up services able to actively support each phase of the tourist 2.0 lifecycle. In this paper we highlight how CN models are able to support the tourism destination management in order to gain competitiveness for local areas, to improve flexibility in services provision and to give tourists the possibility to live an augmented tourism experience. Furthermore, a review of the most suitable forms of collaborative network for tourism destination and their ways to actively support the augmented experience of the tourist 2.0 are proposed
Citizen Science and Smart Cities
The report summarizes the presentations, discussions, and conclusions of the Citizen Science and Smart Cities Summit organised by the European Commission Joint Research Centre on 5-7th February 2014. In the context of the Summit, the label Citizen Science was used to include both citizen science projects, and others that are about user-generated content, not necessarily addressing a scientific process or issues. The evidence presented by 27 different projects shows the vitality and diversity of the field but also a number of critical points:
• Citizen science project are more than collecting data: they are about raising awareness, building capacity, and strengthening communities.
• Likewise, smart cities are not only about ICT, energy and transport infrastructures: Smart cities are about smart citizens, who participate in their city’s daily governance, are concerned about increasing the quality of life of their fellow-citizens, and about protecting their environment. Technology may facilitate, but is no solution per se.
• Unfortunately to date there seems to be little synergy between citizen science and smart cities initiatives, and there is little interoperability and reusability of the data, apps, and services developed in each project.
• It is difficult to compare the results among citizen science, and smart cities projects or translate from one context to another.
• The ephemeral nature of much of the data, which disappear short after the end of the projects, means lack of reproducibility of results and longitudinal analysis of time series challenging, if not impossible.
• There are also new challenges with respect to the analytical methods needed to integrate quantitative and qualitative data from heterogeneous sources that need further research.
• Building and maintaining trust are key points of any citizen science or smart city project. There is a need to work with the community and not just for, or on, the community. It is critical not just to take (data, information, knowledge) but to give back something that is valued by the community itself.
The development of citizen science associations in Europe and the US are important developments that may address some of the points above. There are also actions through which the European Commission Joint Research Centre can make an important contribution:
• Map citizen science and smart cities projects, and generate a semantic network of concepts between the projects to facilitate search of related activities, and community building.
• Provide a repository for citizen science and smart cities data (anonymised and aggregated), software, services, and applications so that they are maintained beyond the life of the projects they originate from, and made shareable and reusable.
• Develop regional test beds for the analysis and integration of social and environmental data from heterogeneous sources, with a focus on quality of life and well-being.
• Undertake comparative studies, and analyse issues related to scaling up to the European dimension.
• Support citizen science and smart cities projects with the JRC knowledge on semantic interoperability, data models, and interoperability arrangements.
• Partner with the European Citizen Science Association, and contribute to its interoperability activities.
• Work towards making the JRC, and the European Commission, a champion of citizen participation in European science.JRC.H.6-Digital Earth and Reference Dat
An Enterprise Computer-Based Information System (CBIS) in the Context of Its Utilization and Customer Satisfaction
Information systems is the study of technology, organizations, and people. An enterprise computer-based information system (CBIS) is type of technology where people can buy and sell their items online, therefore, it is a part of the online business process. This relationship has resulted in the reengineering of the information systems’ model, the formulation of new requirements for training and education, and opening new investment windows for the development of new technologies at both the computer hardware and software application level to meet the needs of newly emerging business models. The aim of this chapter is to provide a comprehensive survey on enterprise CBISs in the context of its utilization and customer satisfaction
Semantic discovery and reuse of business process patterns
Patterns currently play an important role in modern information systems (IS) development and their use has mainly been restricted to the design and implementation phases of the development lifecycle. Given the increasing significance of business modelling in IS development, patterns have the potential of providing a viable solution for promoting reusability of recurrent generalized models in the very early stages of development. As a statement of research-in-progress this paper focuses on business process patterns and proposes an initial methodological framework for the discovery and reuse of business process patterns within the IS development lifecycle. The framework borrows ideas from the domain engineering literature and proposes the use of semantics to drive both the discovery of patterns as well as their reuse
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