Papers
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Data Management with Risk Management in Engineering and Science Projects
Engineering and Science projects are facing new data management challenges, which are currently being addressed through the development of data management plans. However, project stakeholders are unable to proper assess if their plan is representative of good data management practices. To address this issue, we propose a risk management framework to assist the definition of a data management plan in engineering and science projects. To validate our proposal, we present an application to a civil engineering project concerning dam safety.
Year: 2014
Number Pages:
49-66pp.
Author(s): Vieira, R. J. C.; Ferreira, F.; Barateiro, J.; Borbinha, J. L.
: New Review of Information Networking
Keywords: Risk management framework; Risk management; Data management plan; Data management; Engineering; Science
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Designing Digital Preservation Solutions:A Risk Management-Based Approach
Digital preservation aims to keep digital objects accessible over long periods of time, ensuring the authenticity and integrity of these digital objects. In such complex environments, Risk Management is a key factor in assuring the normal behaviour of systems over time. Currently, the digital preservation arena commonly uses Risk Management concepts to assess repositories. In this paper, we intend to go further and propose a perspective where Risk Management can be used not only to assess existing solutions, but also to conceive digital preservation environments. Thus, we propose a Risk Management-based approach to design and assess digital preservation environments, including: ·the definition of context and identification of strategic objectives to determine specific requirements and characterize which consequences are acceptable within the identified context; ·the identification, analysis and evaluation of threats and vulnerabilities that may affect the normal behaviour of a specific business or the achievement of the goals and conformance to the requirements identified in the context characterization; and, ·definition of actions to deal with the risks associated with the identified threats and vulnerabilities. We generalize and survey the main requirements, threats, vulnerabilities and techniques that can be applied in the scope of digital preservation.
Year: 2010
Number Pages:
4-17pp.
Author(s): Barateiro, J.; Antunes, G. J.; Freitas, F.; Borbinha, J. L.
: International Journal of Digital Curation
Editor: Digital Curation Centre
Volume:
Vol 5, No 1.
Keywords: Digital threats; Digital preservation
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Addressing Digital Preservation: Proposals for New Perspectives
Digital preservation aims at maintaining digital objects accessible over long periods of time, ensuring the authenticity and integrity of these digital objects. In this paper, we propose three different approaches to address the digital preservation problem. First, we survey the main requirements specific to the preservation arena. Next, we show how digital preservation can be approached as a specific case of System of Systems Engineering. Then, we introduce Enterprise Architecture as a framework which is regularly used to assist information systems design and maintenance, but can also be applied to System of Systems and consequently to digital preservation. Finally, in such complex environments, Risk Management is a key factor to assure the normal behavior of systems along time. Thus, we propose a Risk Management based approach to design and assess digital preservation environments, enclosing the definition of context and requirements, and the identification of threats and vulnerabilities, to be used as the basis of the definition of actions to deal with the risks associated with those threats and vulnerabilities. We generalize and survey the threats, vulnerabilities and techniques that can be applied in the scope of digital preservation.
Year: 2009
Author(s): Barateiro, J.; Antunes, G. J.; Borbinha, J. L.
Keywords: Interoperability; Data grids; Dependability; Digital preservation; Digital libraries
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Challenges on preserving scientific data with data grids
The emerging context of e-Science imposes new scenarios and requirements for digital preservation. In particular, the data must be reliably stored, for which redundancy is a key strategy. But managing redundancy must take into account the potential failure of component. Considering that correlated failures can affect multiple components and potentially cause a complete loss of data, we propose an innovative solution to manage redundancy strategies in heterogeneous environments such as data grids. This solution comprises a simulator that can be used to evaluate redundancy strategies according to preservation requirements and supports the process to design the best architecture to be deployed, which can latter be used as an observer of the deployed system, supporting its monitoring and management.
Year: 2009
Author(s): Barateiro, J.; Antunes, G. J.; Freitas, F.; Borbinha, J. L.
Editor: ACM
Keywords: Redundanct; Digital preservation; E-science; Data grids; Simulation
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Designing digital preservation solutions: a risk management based approach
Digital preservation aims at maintaining digital objects accessible over long periods of time, ensuring the authenticity and integrity of these digital objects. In such complex environments, Risk Management is a key factor to assure the normal behaviour of systems along time. Currently, the digital preservation arena commonly uses Risk Management concepts to assess repositories. In this paper, we intend to go beyond and propose a perspective where Risk Management can be used to assess existing solutions, but also to conceive digital preservation environments. Thus, we propose a Risk Management based approach to design and assess digital preservation environments, enclosing: (i) the definition of context and identification of strategic objectives to determine specific requirements and characterize which consequences are acceptable within the identified context; (ii) the identification, analysis and evaluation of threats and vulnerabilities that may affect the normal behaviour of a specific business or the achievement of the goals and conformance to the requirements identified in the context characterization; and, (iii) definition of actions to deal with the risks associated with the identified threats and vulnerabilities. We generalize and survey the main requirements, threats, vulnerabilities and techniques that can be applied in the scope of digital preservation.
Year: 2009
Author(s): Barateiro, J.; Antunes, G. J.; Freitas, F.; Borbinha, J. L.
Keywords: Digital preservation; Risk management
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Digital Preservation of Heterogeneous Data
Digital preservation aims at maintaining digital objects and making data accessible over long periods of time. The emerging context of e-Science imposes new scenarios and new requirements for digital preservation. This paper presents the main issues, current solutions and prominent projects for digital preservation and e-Science data management. Finally, it presents the problem to be addressed, the solutions to explore, the proposed methodology and expected contributions of the associated PhD work.
Year: 2009
Author(s): Barateiro, J.
Editor: IEEE Technical Committee on Digital Libraries
Volume:
Volume 5 Issue 2.
Keywords: Digital preservation; E-science
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Long-term data management and the safety of large civil engineering structures
Large civil engineering structures are continuously monitored to assure their structural safety. The Portuguese National Laboratory for Civil Engineering currently monitors several types of structures, like concrete dams, bridges or other transportation infrastructures. The consequences of a structural failure are potentially catastrophic, varying from loss of life or environmental damage to high economic impacts. The management and preservation of structural monitoring data is crucial to support decisions concerning the structural safety. However, preserving data also entails several risks and threats, comprising strong safety requirements as happens in civil engineering structures.
Year: 2009
Author(s): Barateiro, J.; Santos, J.; Mata, J.; Borbinha, J. L.; Antunes, G. J.
Keywords: Digital preservation; Structural safety
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Preserving Digital Data in Heterogeneous Environments
Digital preservation aims at maintaining digital objects accessible over a long period of time, regardless of the challenges of organizational or technological changes or failures. In particular, data produced in e-Science domains could be reliably stored in todays data grids, taking advantage of the natural properties of this kind of infrastructure to support redundancy. However, to achieve reliability we must take into account failure interdependency. Taking into account the fact that correlated failures can affect multiple components and potentially cause complete loss of data, we propose a solution to evaluate redundancy strategies in the context of heterogeneous environments such as data grids. This solution is based on a simulation engine that can be used not only to support the process of designing the preservation environment and related policies, but also later on to observe and control the deployed system.
Year: 2009
Author(s): Antunes, G. J.; Barateiro, J.; Cabral, M.; Borbinha, J. L.; Rodrigues, R.
Keywords: Data grids; Dependability; Digital preservation; Digital libraries
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Securing the iRODS Metadata Catalog for Digital Preservation
Digital preservation is the ability to retrieve, access, and use digital objects through time, while ensuring the authenticity and integrity properties of these objects. Data grids represent a model of storage systems designed for data management and sharing, which concept also has been proposed for digital preservation. However, since data grids are not specifically designed for this purpose, they present weaknesses that have to be handled. This poster will present a set of services to address a problem in the metadata catalog of the iRODS data grid, strengthening that platform for digital preservation purposes.
Year: 2009
Author(s): Antunes, G. J.; Barateiro, J.
Editor: Springer
Keywords: Data grids; Digital preservation; Digital libraries
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Digital preservation of heterogeneous data
Digital preservation aims at maintaining digital objects and data accessible over long periods of time. The emerging context of e- Science imposes new scenarios and new requirements for digital preser- vation. This paper presents the main issues, current solutions and promi- nent projects for digital preservation and e-Science data management. Fi- nally, it presents the problem to be addressed, the solutions to explore, the proposed methodology and expected contributions of the associated PhD work.
Year: 2008
Author(s): Barateiro, J.
Keywords: Interoperability; E-science; Data grid; Digital preservation; Digital libraries
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Comunicação
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The quality of monitoring data in civil engineering works
This paper presents the research and discusses the findings concerning the identification and definition of quality dimensions related to the monitoring data obtained in the safety control of major civil engineering works, namely dams and bridges. The analysis of the behavior and the safety evaluation of these works essentially depend on the quality of the data collected by the sensors, named the observation data, besides the quality of the models and, last but not least, the knowledge and experience of the experts involved. In addition, LNEC1 stores and preserves the observation data concerning major civil engineering works, which represents an important research source for LNEC and Universities and, thus, shapes itself as an e-Science scenario. Differently from other e-Science environment authors, we have not restricted our work to objective dimensions, whose measures can be calculated automatically. It appears, from the experts opinions, that some subjective dimensions can largely enrich the quality information about archived data at the expense of some additional work in data curation. In the development of this research we used an online version of the Delphi method with the Q-Sort technique, complemented with upstream interviews and a downstream meeting with the experts. We found out, and sorted by the importance level assigned by the experts, ten dimensions for the quality of observation data, which are error-of-observation, coherence, relevancy, interpretability, timeliness, completeness, accessibility, appropriate amount of data, access security and preservation.
Year: 2009
Author(s): Lucas, A.; Palma-dos-Reis, A.; Caldeira, M.
Keywords: Civil engineering works; Sensors; Monitoring systems; Data quality dimensions
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Dissertação de Mestrado
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Processo Iterativo de Migração de Dados
Com a evolução das tecnologias de informação, a migração de dados legados é essencial para garantir o correcto funcionamento das novas aplicações. A eficiência e correcção das aplicações depende, fortemente, da qualidade dos dados armazenados. A criação de processos de migração de dados através da implementação de Software específico é bastante complexa. Por isso, é fundamental disponibilizar mecanismos de apoio à realização de tarefas de tratamento e migração de dados. A framework Ajax disponibiliza vários operadores para limpeza e transformação de dados. Não sendo uma ferramenta exclusivamente orientada para a migração de dados, pretende-se que a sua utilização na migração de um projecto real permita validar a respectiva aplicação. Todas as lacunas dos operadores do Ajax podem, assim, ser preenchidas através do refinamento e extensão da lógica dos operadores, nomeadamente, no suporte à identificação de registos errados e ao carregamento incremental de dados nos sistemas alvo. No âmbito do projecto gestBarragens, desenvolveu-se um processo de migração que inclui o carregamento de um sistema de informação legado e vários sistemas simples relacionados com informação acerca da segurança de barragens de betão em Portugal.
Year: 2008
Author(s): Barateiro, J.
Keywords: Grafo; Limpeza de dados; Qualidade de dados; Etl; Migração
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Workflow modeling using UML, Declarative Tools and WEB2.0
Manual translation of UML diagrams to programmatic code is tedious and error prone. Many CASE tools allow computer code to be generated from Class Diagrams, but fewer, if any, allow the transformation of Activity Dia- grams (ADs) in executable and workflow defining computer code. Our project aims at: Translating UML ADs into the ISCO programming language; Building a workflow execution system that runs the translations; Building a graphical tool to create and edit workflows, and visualize the executions. Defending that UML ADs can specify executable workflows, we present an ISCO based workflow engine, acting over the information extracted from Activity Diagrams and integrated into a platform that allows a user to graph- ically model and manage workflows within a web environment. The server, built with ISCO, assures the data persistence and the execution of the work- flows. Communication with the server is performed through AJAJ.
Year: 2008
Author(s): Gamito, R.
Keywords: Isco; Uml; Workflow
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