共查询到20条相似文献,搜索用时 15 毫秒
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《Computers & Industrial Engineering》2007,52(3):322-326
This article presents a synthetic vision of geographical information systems (GIS) applications that are state of the art in the renewable energy field. The objective is to analyze the main qualities and problems of these applications, focusing on specific samples, and to carry out a methodological proposal in this genre.From this point of view, the study synthesizes the analyzed applications in three big groups: Decisions Support Systems (DSS) based on GIS; renewable energy and distributed generation of electricity; and decentralized generation for the rural electrification. In addition, a synthetic table and bibliographical references is provided for each group.Finally, several conclusions and a methodological outline are contributed for GIS application in the rural electrification with renewable energy. 相似文献
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Steven Alter 《欧洲信息系统杂志》2008,17(5):448-469
The lack of an agreed upon definition of information system (IS) is one of many obstacles troubling the academic IS discipline. After listing a number of definitions of IS, this paper defines IS as a special case of work system as defined in Alter (1999a). This definition has many desirable characteristics: it is easy to understand; differentiates IS from information technology (IT); covers totally manual, partially automated, and totally automated ISs; links to a life cycle model that generates many insights about development and implementation problems; provides a simple guideline that helps in interpreting common IS/IT jargon; and has other useful implications related to IS concepts, IS terminology, and the analysis and design of ISs. The paper presents the proposed IS definition and evaluates the definition in terms of simplicity, clarity, scope, systematic power, explanatory power, validity, reliability, and fruitfulness. An Appendix summarizes previously published concepts and two frameworks that flow from the proposed definition and are useful for appreciating many points in the evaluation section. 相似文献
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This paper will describe a participatory design process by which individuals from many levels of hierarchy and diverse technical background envisioned and then determined the design criteria for the software system to support the delivery of high quality nursing services. 相似文献
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A revolution is coming--is absolutely essential--in healthcare. The chief information officer must be among the generals who plan battle strategies and lead the campaigns to fight inflating costs and overwhelming demands. Without their leadership and expertise, armies of healthcare providers are destined to fail, and legions of citizens will fall victim to a system inadequate to meet their needs. 相似文献
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Hans van Zon 《AI & Society》2005,19(3):309-326
Mainly on the basis of the eEurope+surveys the variety of Information Society developments paths in Central European countries is analysed, focusing on ICT infrastructure, Internet usage, e-commerce and digital divides. Despite the big progress made by the Central European countries since transition began, most of these countries lag behind the EU-15 average on most Information Society indicators. The variety within Central Europe is enormous, with Slovenia and Estonia close to main-stream Europe and, on the other hand, Bulgaria, Romania and Hungary lagging far behind. In most surveyed countries fixed telephone line penetration is stagnating or declining on a rather low level, putting a break on IS development. This makes alternative access devices to Internet, such as cable TV modem, even more important.
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Hans van ZonEmail: Phone: +44-191-5153895Fax: +44-191-5152229 |
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The information systems research cycle 总被引:1,自引:0,他引:1
What distinguishes information systems from closely aligned disciplines such as computer science, organizational science, management science, economics, or systems engineering? How does IS research balance the demands of relevance and rigor to make effective contributions to both theory and practice? As senior researchers in IS, the authors have engaged in many debates on these questions and have come to some conclusions about what makes this burgeoning field unique and how to properly plan, execute, and evaluate IS research as well as transition it into practice. 相似文献
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Flexible manufacturing systems can be classified as lines, networks, and cells. Current research efforts are concentrated on tool flow systems, process monitoring, and system control. To minimize economical and technological risks already in an early stage of system planning software for simulation and economic evaluation has been realized. The economy of different types of manufacturing cells are compared. 相似文献
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J. livari 《Information Systems Journal》1992,2(1):3-29
Abstract. One can expect that the fit, match or congruence between an information system and its organizational context will be of increasing importance as information systems become more and more integral parts of organizations. Existing IS research has largely neglected the theoretical analysis of the concept 'fit', however, even though it has been widely used in a 'pre-theoretical' sense. The analysis of the concept of 'organizational fit of an information system' put forward in this article is essentially based on the recent analysis of 'fit' in contingency theory, suggesting three interpretations for the concept: a selection approach, an interaction approach and a systems approach. A review of the IS literature on the organizational fit of information systems indicates a lack of any cumulative tradition in existing empirical contingency research into information systems and dominance of the selection approach. Because of the two limitations, this paper regards any definite assessment of the potential prospects of contingency research into information systems as overhasty and proposes a framework for future research into the situation dependence and organizational fit of information systems which integrates contingency research into information systems, contingency research into IS impacts and contingency research into the IS adoption (development/implementation) process. 相似文献
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Keng Siau 《Requirements Engineering》2007,12(4):199-201
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Gio Wiederhold 《Journal of Intelligent Information Systems》1992,1(1):35-55
By classifying information processing tasks which are suitable for artificial intelligence approaches we determine an architectural structure for large systems. We visualize a three-layer architecture of private applications, mediating information servers, and an infrastructure which provides information resources.The base information resources are likely to use algorithmic techniques, since they will deal with many similar base objects. Their results are at higher level of abstraction, diverse, and fewer in number. The information servers must consider the scope, assumptions, and meaning of those intermediate results. Such processing will require techniques grounded in artificial intelligence concepts. Applications will need artificial intelligence techniques to augment the human interface and provide high-level decision support.Information processing in the intermediate layer is domain-specific and a module is constrained to a single ontology. Processing here is comprised of search and control of search, focusing, pruning, fusion, and other means of data reduction. There are also control tasks associated with effective resource management. Their results are then composable by higher-level applications, which have to solve problems involving multiple subtasks.The architecture presented here is a generalization of a server-client model. The mediating server modules will need a machine-friendly interface to support the application layer. The partitioning enhances maintainability, but raises questions of effectiveness and efficiency.Without new and composable structures we will be stuck with a mixture of obsolete large systems and isolated new applications. A formal partitioning provides a model where subproblems become accessible to research. Interoperation is now a distinct source of research problems. We identify some of these issues, and hope that composability of solutions will permit progress in building effective large systems.This paper is substantially based on [50] and [51]. I thank both the original and recent reviewers and listeners for feedback received on this material. Further comments were given by Marianne Siroker and Maria Zemankova. 相似文献
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The use of sophisticated information and communication technologies (ICTs) in the health care domain is a way to improve the quality of services. However, there are also hazards associated with the introduction of ICTs in this domain and a great number of projects have failed due to the lack of systematic consideration of human and other non-technology issues throughout the design or implementation process, particularly in the requirements engineering process. This paper presents the methodological approach followed in the design process of a web-based information system (WbIS) for managing the clinical information in hemophilia care, which integrates the values and practices of user-centered design (UCD) activities into the principles of software engineering, particularly in the phase of requirements engineering (RE). This process followed a paradigm that combines a grounded theory for data collection with an evolutionary design based on constant development and refinement of the generic domain model using three well-known methodological approaches: (a) object-oriented system analysis; (b) task analysis; and, (c) prototyping, in a triangulation work. This approach seems to be a good solution for the requirements engineering process in this particular case of the health care domain, since the inherent weaknesses of individual methods are reduced, and emergent requirements are easier to elicit. Moreover, the requirements triangulation matrix gives the opportunity to look across the results of all used methods and decide what requirements are critical for the system success. 相似文献
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Rajendra K. Bandi Ravi Anand Rao Laxmi Gunupudi 《Information Technology and Management》2014,15(3):163-175
The field of information systems (IS) remains ill-defined, facing problems of recognition and identity crisis. Several papers and debates have been dedicated on this topic for over three decades. The focus of these debates have largely centered on the state of the IS field in Americas and Europe and with a limited study conducted in the Asia–Pacific context. This study attempts to assess the field in the Indian context and highlight the challenges and issues faced by IS faculties in India. Based on literature survey of the seminal papers in the field, we identified the salient topics of interest to IS researchers: identity of the IS field; diversity of the field; research approaches, methods and rigor; reference disciplines; journals and conferences; and IS course and curriculum. A two-phase study was carried out to explore the interest generated by the IS field in India. In the first phase, secondary data review of leading business schools in India was carried out to understand their focus on IS as an academic discipline. In the second phase, we conducted interviews of IS researchers from the premium business schools in India. In our study, we analyze the research focus of IS faculties in B-schools in India, analyze the composition of the faculty pool and the nature of research work undertaken by them. Our study points at the restricted focus of IS researchers in India around a few narrow areas, with a significant breadth of topics not being explored for research. We found the identity struggle of the field to be prominent, which was further compounded by the limited number of active, IS researchers. The growing importance of qualitative techniques in IS research, the challenges of developing a sound base in multiple reference disciplines and the need for making IS course interesting for business school students were some of the other significant observations. Our study also highlighted the paradox of the success of the IT industry in India leading to reduced enrollment of IS courses in B-Schools. We conclude by providing recommendations to B-school deans and directors. 相似文献
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Abstract. Two operationally autonomous information systems intemperate it system can make use of information contained in the other, or if they exchange transactions. A widely held assumption in this field is that the development interoperability among information systems should preserve the design autumn of the individual information systems in a strong sense. This paper demonstrate that preservation of strong design autonomy is not always possible owing to necessity to resolve semantic hereogeneity among the systems. This neces violation of autonomy calls into question the utility of research on general a tectures and the possibility of general solutions. We suggest some theme certain special cases where we believe feasible and useful computer scie research can be done in this area, and also suggest some implications for standard models of architectures for federated databases. 相似文献
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G Hendrickson R K Anderson P D Clayton J Cimino G M Hripcsak S B Johnson M McCormack S Sengupta S Shea R Sideli 《M.D. computing : computers in medical practice》1992,9(1):35-42
Over the past seven years, Columbia-Presbyterian Medical Center has been planning and implementing an integrated academic information management system. Accomplishments to date include establishing an institutional information architecture, installing a campus-wide network of workstations, recruiting the staff needed to develop and implement the system, and developing various applications. This paper presents the rationale and steps involved in these accomplishments, as well as data on use of the system so far. 相似文献
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Sociotechnical approach preaches the affinity of the social and the technical organization but divides organizations into social and technical subsystems. Thus, it has failed to anticipate the possibilities of new technologies within the social system. The social subsystem of a modern sociotechnical system does not consist of mere human beings but combines people and the technological artifacts they use. In this article, we discuss one such technology, information support, and how it can be used to expand functional redundancy of a sociotechnical system, even the cognitive redundancy of individual people. However, such technologies have often been applied specifically to limit functional redundancy of the sociotechnical system, that is, to reduce communication, learning, and utilization of human talent. The discussion is based on findings from case studies on multimedia‐based interactive task support systems used in lightweight assembly industry in Finland and in Denmark. The case studies provide both justification to the information support approach and questions to be addressed in the future. For example, why did the introduction of so many interactive task support systems fail? © 2000 John Wiley & Sons, Inc. 相似文献