| 1. |
- Ahmadi Achachlouei, Mohammad, et al.
(author)
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Developing life-cycle phases for the DoDAF using ISO15704 Annex A (GERAM)
- 2011
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In: Computers in industry (Print). - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 62:3, s. 253-259
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Journal article (peer-reviewed)abstract
- This paper presents a development of the US Department of Defense Architecture Framework (DoDAF) based on life-cycle concept of the Generalized Enterprise Reference Architecture and Methodology (GERAM) framework/ISO 15704:2000 requirements. Previous research has identified areas of concern within DoDAF by analyzing and evaluating DoDAF against GERAM and potentially assisting in its future development. This paper aims to extend existing architecture description process and artifacts within DoDAF that match the scope of the GERAM life-cycle phases. For this development we use life-cycle aspect of three well-known reference architectures (including PERA, CIMOSA, and GRAI-GIM) that were the basis in formation of GERAM.
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| 2. |
- Alzghoul, Ahmad, et al.
(author)
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Comparing a knowledge-based and a data-driven method in querying data streams for system fault detection: A hydraulic drive system application
- 2014
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In: Computers in industry (Print). - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 65:8, s. 1126-1135
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Journal article (peer-reviewed)abstract
- The field of fault detection and diagnosis has been the subject of considerable interest in industry. Fault detection may increase the availability of products, thereby improving their quality. Fault detection and diagnosis methods can be classified in three categories: data-driven, analytically based, and knowledge-based methods. In this work, we investigated the ability and the performance of applying two fault detection methods to query data streams produced from hydraulic drive systems. A knowledge-based method was compared to a data-driven method. A fault detection system based on a data stream management system (DSMS) was developed in order to test and compare the two methods using data from real hydraulic drive systems. The knowledge-based method was based on causal models (fault trees), and principal component analysis (PCA) was used to build the data-driven model. The performance of the methods in terms of accuracy and speed, was examined using normal and physically simulated fault data. The results show that both methods generate queries fast enough to query the data streams online, with a similar level of fault detection accuracy. The industrial applications of both methods include monitoring of individual industrial mechanical systems as well as fleets of such systems. One can conclude that both methods may be used to increase industrial system availability
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| 3. |
- Arushanyan, Yevgeniya, 1984-, et al.
(author)
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Lessons learned : Review of LCAs for ICT products and services
- 2014
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In: Computers in industry (Print). - : Elsevier. - 0166-3615 .- 1872-6194. ; 65:2, s. 211-234
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Journal article (peer-reviewed)abstract
- Application of information and communication technology (ICT) is often expected to result in decreased environmental impacts. Several studies have, however, also addressed the possibilities of negative impacts. It is therefore important to assess environmental impacts of ICT products and services. Life Cycle Assessment (LCA) is a tool for assessing the potential impacts of a product or service over the whole life-cycle, i.e. from raw material acquisition to waste management via production and use phases. The aim of this paper is to review LCA studies of ICT products and services, including a few Social Life Cycle Assessment (S-LCA) studies. Many of the studies have considered consumer products, such as computers and TVs. Other consumer products, such as game consoles and TV peripherals, as well as business products, e.g. related to networks, are however more rarely assessed. Manufacturing and use phase have the highest impact in the life cycle. Use phase seems to be the predominant in energy consumption and global warming for some ICT products but for others, especially energy efficient, low weight products, manufacturing may dominate. Rapid technological development is stressed by several authors as a source of variability of results, impacting the production processes and suppliers as well as the content and energy performance of the actual devices. In the future, conducting LCA on ICT, the research community needs to consider the limitations found in the studies conducted so far. It encompasses, among others, the need to address a broad spectrum of environmental impacts, including human and ecotoxicological impacts; modeling actual e-waste management, covering informal management when relevant; and considering user behavior in a realistic way, accounting for rebound and other indirect effects.
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| 4. |
- Ribeiro, Luis, et al.
(author)
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Re-thinking diagnosis for future automation systems : An analysis of current diagnostic practices and their applicability in emerging IT based production paradigms
- 2011
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In: Computers in industry (Print). - : Elsevier. - 0166-3615 .- 1872-6194. ; 62:7, s. 639-659
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Journal article (peer-reviewed)abstract
- With the advent of the Internet and the progressive development and consolidation of a wide range of web standards and technologies as well as the advances in distributed artificial intelligence (DAI), namely the multi agent system concept, new opportunities have emerged for conceiving, modelling and enhancing shop floor's performance and response.Modern IT-supported production paradigms denote a common concept where the shop floor is a lively entity composed by interacting intelligent modules whose individual and collective function adapts and evolves ensuring the fitness and adequacy of the organization, owning the system, in tackling profitable but volatile business opportunities.The self-organizing and peer to peer nature of these systems renders a collective behaviour and dynamics that are fundamentally new. Conventional diagnostic methods and tools have not been designed targeting the envisioned systems therefore lack the required support. In this paper the emerging IT-based production paradigms are surveyed as well as the existing diagnostic methods whose adequacy is analysed. The resulting requirements and characteristics are exposed to stress the need for rethinking current diagnostic practices in future automation systems.
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| 5. |
- Shah, M. B. N., et al.
(author)
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A new error handling algorithm for controller area network in networked control system
- 2013
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In: Computers in industry (Print). - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 64:8, s. 984-997
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Journal article (peer-reviewed)abstract
- An effective error handling mechanism plays an important role to ensure the reliability and robustness of the application of controller area network (CAN) in controlling dynamic systems. This paper addresses a new online error handling approach or named per-sample-error-counting (PSeC) technique that tends to replace native error handling protocol in controller area network (CAN). The mechanism is designed to manage transmission errors of both sensor and control data in networked control system (NCS) used in controlling dynamic system such that the stability of the feedback system is preserved. A new parameter denoted as maximum allowable number of error burst (MAEB) is introduced in which MAEB is selected based on available bandwidth of the CAN network. MAEB serves as the maximum number of attempt of re-transmission of erroneous data per sample which allows the maximum transmission period to be known and guaranteed for time-critical control system. The efficacy of the proposed method is verified by applying the algorithm on the fourth order inverted pendulum system simulated on Matlab/Truetime simulator and the performance is benchmarked with the existing CAN error management protocol. The simulation run under various systems conditions demonstrate that the proposed method results in superior system performance in handling data transmission error as well as meeting control system requirement. © 2013 Elsevier B.V.
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| 6. |
- Sternberg, Henrik, et al.
(author)
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Decentralized intelligence in freight transport : A critical review
- 2014
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In: Computers in industry (Print). - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 65:2, s. 306-313
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Journal article (peer-reviewed)abstract
- The purpose of this paper is to provide a research outlook on the concept of decentralized freight intelligence, i.e. autonomous freight making localized routing decisions. A review of research literature on decentralized intelligence in freight transport serves as the foundation of the analysis. The analysis reveals a scarcity of scientific evidence to suggest a successful introduction of decentralized freight intelligence. Among numerous conceptual findings, the analysis reveals a dearth of research on the clear and present challenges of introducing and adopting decentralized freight concepts in contemporary multi organizational open freight systems. For practitioners this paper provides useful input on future ICT development in the transport field. In particular, due to the lack of guidance on adoption of decentralized freight, a focus on non-networked benefits of information technology is to be recommended. Given the large number of projects, papers and various initiatives related to decentralized freight intelligence, this paper, to the authors' best knowledge, provides a novel technology adoption perspective on decentralized freight intelligence research.
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| 7. |
- Taxén, Lars
(author)
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Sustainable enterprise interoperability from the Activity Domain Theory perspective
- 2012
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In: Computers in industry (Print). - : Elsevier. - 0166-3615 .- 1872-6194. ; 63:8, s. 835-843
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Journal article (peer-reviewed)abstract
- The investigation of sustainable enterprise interoperability requires an explicit position of what constitutes the enterprise. In particular, human aspects like agency, sense-making, interpretation, common understanding, etc., must be taken into account. To this end, the purpose of this contribution is to make an inquiry into interoperability from the perspective of the Activity Domain Theory (ADT). In this theory, the enterprise is considered as a constellation of activity domains. The activity domain is characterized by the activity modalities - objectivation, contextualization, spatialization, temporalization stabilization, transition - which represent human, innate predispositions for coordinating actions. Interoperability is focused to one particular modality: the transition between activity domains. An example from the telecom industry is used to illustrate the approach. Implications for various aspects of interoperability are discussed. In conclusion, it is argued that the ADT is an alternative framework for advancing the understanding of sustainable interoperability between enterprises and enterprise systems.
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| 8. |
- Ullberg, Johan, et al.
(author)
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A language for interoperability modeling and prediction
- 2012
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In: Computers in industry (Print). - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 63:8, s. 766-774
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Journal article (peer-reviewed)abstract
- Interoperability, defined as the satisfaction of a communication need between two or more actors, is a sought after quality for enterprises in today's competitive environment. For a decision maker, understanding the effects of a changing market place and understanding how to adapt to the new environment is essential. Sustainable interoperability is an approach where such dynamic environments are considered, including how to adapt to the new environments. This paper presents a modeling language for describing architectures from an interoperability perspective and a formalism for inferring the degree of interoperability from the architecture models, thus supporting sustainable interoperability. The interoperability language is expressed as a Unified Modeling Language, UML, class diagram specifying classes, attributes, and relationships relevant for interoperability modeling. The class diagram is also augmented with a set of statements in the Object Constraint Language, OCL, supporting automated interoperability prediction.
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| 9. |
- Van Sinderen, M., et al.
(author)
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Computer in industry special issue on "interoperability and future internet for next-generation enterprises" editorial and state of the art
- 2013
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In: Computers in industry (Print). - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 64:8, s. 881-886
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Journal article (other academic/artistic)abstract
- The 2013 Special Issue of Computers in Industry Journal describes papers on 'Interoperability and Future Internet for Next-Generation Enterprises' from the 3rd International IFIP Working Conference on Enterprise Interoperability. The first article, 'Towards a business model reference for interoperability services' by Otto, Ebner, Baghi, and Bittmann, addresses the lack of business models for enterprise interoperability. The next article, 'Structural elements of coordination mechanisms in collaborative planning process and their assessment through maturity models' by Cuenca, Boza, and Alemany, considers the maturity assessment of a specific kind of business-level enterprise interoperability, namely collaborative planning processes. An article by Coutinho, Cretan, and Jardim-Goncalves, titled 'Sustainable Interoperability on Space Mission Feasibility Studies,' proposes a framework for achieving sustainable interoperability covering both businesspeople aspects and technology aspects.
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| 10. |
- Woxenius, Johan, 1967, et al.
(author)
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Utilising more of the loading space in intermodal line trains – measures and decision support
- 2013
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In: Computers in industry. - : Elsevier BV. - 0166-3615 .- 1872-6194. ; 64:2, s. 146-154
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Journal article (peer-reviewed)abstract
- The focus of this article is to identify, characterise and qualitatively evaluate the existing measures for increasing the utilisation of loading space in intermodal road-rail freight line trains. Normally, these trains operate like intercity passenger trains, because they make short unit load transhipment stops along rail corridors in order to travel comparatively small and short flows. The measures for loading space utilisation include adapting the train’s capacity, changing the departure times, altering the train routes and sending trucks to different terminals as well as replacing rail transport with trucks. Some of the measures require improved information sharing, and executives can strengthen the effect of the measures by adding decision support systems and price incentives to transport buyers.
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