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Sanjay Gosain 《Information Systems Frontiers》2007,9(1):53-67
Organizations considering the adoption of the web services framework for their Information Technology (IT) applications are
confronted with a period of technological ferment, as standards for supporting non-trivial business process functionality
are not yet in place. Evolving standardization poses challenges in the form of inter-temporal dependencies as organizations’
conformance to the standards that emerge in the future is contingent on their current design choices that need to be made
ex-ante without complete information of how standards will evolve. At the same time, there are significant early-mover benefits
to be gained by executing an IT strategy using web services as a cornerstone. This paper draws upon coordination theory to
develop a conceptual framework outlining three approaches for organizations to deal with changing standardization regimes: (a) The dependencies across components,
conforming to different standardization regimes, are continually bridged through intermediary services (e.g., using a protocol
adapter that translates to an unanticipated emergent standard), (b) The dependencies across components are minimized through
loose coupling so that standardization regime changes for any component have a minimal impact on other components (e.g., encapsulating
the functionality susceptible to design change into a module with abstract interfaces), and (c) The impacted components are
rapidly reconfigurable as and when standardization regime changes (e.g., by building in “extension” features into applications).
The risk for organizations investing in web services can be further managed by mechanisms such as organization’s attention
to signals from the periphery, undertaking low-risk experiments to learn in different areas, and bricolage-like improvisations
of their legacy components at hand.
相似文献
Sanjay GosainEmail: |
3.
Yinsheng Li Xiaohua Lu Kuo-Ming Chao Ying Huang Muhammad Younas 《Information Systems Frontiers》2006,8(4):307-319
Electronic Marketplaces (or e-Marketplaces) require technologies which provide support for the adaptability, flexibility and
the integration of business applications in order to meet rapid changes in business environment. Traditional web technologies
are unable to meet the new business requirements which are derived from the rapid growth of e-Marketplaces. In this research,
a service-oriented framework is proposed in order to address the issues associated with the development of e-Marketplaces.
Specifically, it introduces a generic trading model oriented to e-Marketplaces so as to overcome the inadequacy of existing
models and to facilitate the development of a computational trading process. In the proposed framework, required services
are identified through the utilization of the business-centric trading model. Using a service metamodel, services are equipped
with intelligence such that they work seamlessly and coherently within and across e-Marketplaces. A multi-model driven integrated
development platform has been developed to support the proposed models and framework. The proposed framework and concepts
have been validated through a case study of a mutual funds auction in an e-Marketplace.
相似文献
Muhammad YounasEmail: |
4.
A web services framework for distributed model management 总被引:2,自引:0,他引:2
Therani Madhusudan 《Information Systems Frontiers》2007,9(1):9-27
Distributed model management aims to support the wide-spread sharing and usage of decision support models. Web services is
a promising technology for supporting distributed model management activities such as model creation and delivery, model composition,
model execution and model maintenance to fulfill dynamic decision-support and problem solving requests. We propose a web services
based framework for model management (called MM-WS) to support various activities of the model management life cycle. The
framework is based on the recently proposed Integrated Service Planning and Execution (ISP & E) approach for web services
integration. We discuss encoding of domain knowledge (as individual models) and utilize the MM-WS framework to interleave
synthesis of composite models with their execution. A prototypical implementation with an example is used to illustrate the
utility of the framework to enable distributed model management and knowledge integration. Benefits and issues of using the
framework to support model-based decision-making in organizational contexts are outlined.
相似文献
Therani MadhusudanEmail: |
5.
Alex Carmichael Mark Rice David Sloan Peter Gregor 《Universal Access in the Information Society》2006,4(4):400-416
The move toward digital switchover increases content and introduces interactive services available through the television.
UK legislation advocates universal access and equitable provision of services, across all platforms and equipment, particularly
for ‘vulnerable’ groups. However, key aspects of usability and accessibility have been overlooked by those responsible for
encouraging this new infrastructure’s inclusive development. Aspects of previous interactive television provision and developments
in web accessibility appear to have been ignored, along with findings from relevant user-centred research and even from specifically
commissioned reports. This paper will identify these issues and discuss their impact on the inclusiveness of DTV.
相似文献
Alex CarmichaelEmail: |
6.
William N. Robinson 《Requirements Engineering》2006,11(1):17-41
Requirements compliant software is becoming a necessity. Fewer and fewer organizations will run their critical transactions
on software that has no visible relationship to its requirements. Businesses wish to see their software being consistent with
their policies. Moreover, partnership agreements are pressuring less mature organizations to improve their systems. Businesses
that rely on web services, for example, are vulnerable to the problems of their web service providers. While electronic commerce
has increased the speed of on-line transactions, the technology for monitoring requirements compliance—especially for transactions—has
lagged behind. To address the requirements monitoring problem for enterprise information systems, we integrate techniques
for requirements analysis and software execution monitoring. Our framework assists analysts in the development of requirements
monitors for enterprise services. The deployed system raises alerts when services succeed or fail to satisfy their specified
requirements, thereby making software requirements visible. The framework usage is demonstrated with an analysis of ebXML
marketplace specifications. An analyst applies goal analysis to discover potential service obstacles, and then derives requirements
monitors and a distributed monitoring system. Once deployed, the monitoring system provides alerts when obstacles occur. A
summary of the framework implementation is presented, along with analysis of two monitor component implementations. We conclude
that the approach implemented in the framework, called ReqMon, provides real-time feedback on requirements satisfaction, and
thereby provides visibility into requirements compliance of enterprise information systems.
相似文献
William N. RobinsonEmail: |
7.
Christian Jakob 《Minds and Machines》2006,16(3):277-287
Hitchcock (2001a) argues that the distinction between singular and general causation conflates the two distinctions ‘actual causation vs. causal tendencies’ and ‘wide vs. narrow causation’. Based on a recent regularity account of causation I will show that Hitchcock’s introduction of the two distinctions is an unnecessary multiplication of causal concepts.
相似文献
Christian JakobEmail: |
8.
Miladin Stefanovic Milan Matijević Milan Erić Visnja Simic 《Information Systems Frontiers》2009,11(1):75-86
In this paper, we present a method for development and specification of web services based on the quality system documentation.
The general assumption is that service oriented architecture is based on business services and these business services mostly
correspond to exchanged documentation in a real business system. Documentation of a quality system is recognized in form of
documents that describe business processes in a real business system and identify exchanged documentation with environment.
Presented method uses documentation of quality system and documentation flow for web service specification. We developed the
CASE tool for web service specification based on a new approach, and we compare it to other existing tools.
相似文献
Visnja SimicEmail: |
9.
Zhangxi Lin Sathya Ramanathan Huimin Zhao 《Information Systems and E-Business Management》2005,3(3):221-242
Web services technology is becoming an important technological trend in Web application development and integration. Based on open standards, such as SOAP, WSDL, and UDDI, Web services allow Web-based applications to communicate with each other through standardized XML messaging and to form loosely coupled distributed systems. Although the open feature of Web services benefits service providers in servicing consumers, the unlimited computing resources access of Web services to network bandwidth, storage throughput, and CPU time may lead to overexploitation of the resources when applications based on the Web services technology are widely accepted. Therefore, it is critical to optimize the operation of Web services, subject to the QoS requirements of service requests, to assure the total benefits of the service providers and the service consumers. This paper proposes a usage-based dynamic pricing approach to optimizing resource allocation of Web services in the principle of economics, and reports on a pilot implementation demonstrating the technical feasibility of the proposed approach.
相似文献
Huimin ZhaoEmail: |
10.
Jaakko T. Lehikoinen Juha Lehikoinen Pertti Huuskonen 《Personal and Ubiquitous Computing》2008,12(8):543-553
Ubiquitous computing contains a huge promise for more intelligent services that are available anywhere and are able to dynamically
adapt to the users’ current context. However, what necessarily follows such an environment is the compromising of the users’
privacy. We aim at analyzing this complex issue by applying and extending Altman’s theoretical privacy framework, well known
in social sciences, to privacy in ubicomp. Altman understands privacy as a two-way interactive process, which makes the approach
promising in analyzing ubicomp where people, devices and the environment interact with each other. We point out similarities
between the existing model and the features of ubicomp environment, and verify the results by applying and analyzing the resulting
extended framework to typical ubicomp use cases. Based on the analysis, we argue that privacy in ubicomp can be modeled similarly
to privacy in general by extending the model to cover such factors as mediation and non-human actors.
相似文献
Jaakko T. LehikoinenEmail: |
11.
Defining the grid: a snapshot on the current view 总被引:1,自引:0,他引:1
Heinz Stockinger 《The Journal of supercomputing》2007,42(1):3-17
The term “Grid” was introduced in early 1998 with the launch of the book “The Grid. Blueprint for a new computing infrastructure”.
Since that time many technological changes have occurred in both hardware and software. One of the most important ones seems
to be the wide acceptance of Web services. Although the basic Grid idea has not changed much in the last decade, many people
have different ideas about what a Grid really is. In the following article we report on a survey where we invited many people
in the field of Grid computing to give us their current understanding.
相似文献
Heinz StockingerEmail: |
12.
Hiroshi Kuriyama Kyung-Hyu Lee G. S. Kuo Shingo Ata Choong Seon Hong 《Journal of Network and Systems Management》2008,16(1):113-119
This article presents a report on APNOMS 2007, which was held October 10–12, 2007 in Sapporo, Japan. The theme of APNOMS 2007
was “Managing the Next Generation Networks and Services.”
相似文献
Choong Seon HongEmail: |
13.
Jose Ignacio Aliaga Francisco Almeida Jose Manuel Badía Sergio Barrachina Vicente Blanco Maria Castillo Rafael Mayo Enrique S. Quintana Gregorio Quintana Alfredo Remón Casiano Rodríguez Francisco de Sande Adrian Santos 《The Journal of supercomputing》2009,48(1):88-114
In this paper, we present our joint efforts to design and develop parallel implementations of the GNU Scientific Library for
a wide variety of parallel platforms. The multilevel software architecture proposed provides several interfaces: a sequential
interface that hides the parallel nature of the library to sequential users, a parallel interface for parallel programmers,
and a web services based interface to provide remote access to the routines of the library. The physical level of the architecture
includes platforms ranging from distributed and shared-memory multiprocessors to hybrid systems and heterogeneous clusters.
Several well-known operations arising in discrete mathematics and sparse linear algebra are used to illustrate the challenges,
benefits, and performance of different parallelization approaches.
相似文献
Adrian SantosEmail: |
14.
This paper describes how a personalised educational game architecture has been used in conjunction with Web services to provide
remote access to the system. The educational game is a virtual reality adventure game that performs affective user modelling
by measuring emotional characteristics of users. Virtual reality (VR) games are so popular among children and adolescents
that can be used for the purposes of educational software to render it more attractive and motivating. The benefits of such
an application can be maximised if it is available over the Web. Software applications that operate over the Web are targeted
to a wide range of users. Hence they need a high degree of adaptivity and dynamic individualisation to each user that interacts
with the application. This should include the students’ emotional state that affects their learning. However, the environment
of a Web-based VR-game that performs user modelling is so demanding that the technology of Web services is necessary for its
effective operation and interoperability. Moreover, reusability may be achieved for the user modelling component.
相似文献
Maria VirvouEmail: |
15.
The advancement of web services in the last few years has spurred a number of revolutionary concepts in information technology
and management including service-oriented architectures, service-oriented computing, and services science, management and
engineering, which can be collectively called as “services computing.” Services computing is a new research field that goes
beyond traditional computing disciplines as it includes not only architectural, programming, deployment, and other engineering
issues, but also management issues such as business component modeling, business process design, and service delivery. In
this paper, we provide an overview of emerging research concepts in services computing without attempting to unify them as
it will take sometime for the field to become mature. In addition, we take a position that the ultimate goal of services computing
is to create the necessary technological and managerial foundation to support enterprise agility. In this short paper, we
give an overview of services computing, describe its relationship to enterprise agility, and discuss basic technical and managerial
issues. Finally, we introduce the papers that are published in this special issue.
相似文献
J. Leon ZhaoEmail: |
16.
Does Japan really have robot mania? Comparing attitudes by implicit and explicit measures 总被引:1,自引:0,他引:1
Japan has more robots than any other country with robots contributing to many areas of society, including manufacturing, healthcare,
and entertainment. However, few studies have examined Japanese attitudes toward robots, and none has used implicit measures.
This study compares attitudes among the faculty of a US and a Japanese university. Although the Japanese faculty reported
many more experiences with robots, implicit measures indicated both faculties had more pleasant associations with humans.
In addition, although the US faculty reported people were more threatening than robots, implicit measures indicated both faculties
associated weapons more strongly with robots than with humans. Despite the media’s hype about Japan’s robot ‘craze,’ response
similarities suggest factors other than attitude better explain robot adoption. These include differences in history and religion,
personal and human identity, economic structure, professional specialization, and government policy. Japanese robotics offers
a unique reference from which other nations may learn.
相似文献
Karl F. MacDorman (Corresponding author)Email: |
Sandosh K. VasudevanEmail: |
Chin-Chang HoEmail: |
17.
We consider the emergence of hybrid ecologies, which marry mixed reality environments and ubiquitous computing environments
together to bridge the physical-digital divide. Hybrid ecologies are new class of digital ecology that merge multiple environments,
physical and digital, together. Collaboration in these emerging environments is characterized by ‘fragmented interaction’
in that it is mediated by interaction mechanisms that are differentially distributed. Unpacking the collaborative nature of
fragmented interaction requires that we uncover the ordinary interactional competences that users exploit to make differentially
distributed mechanisms of interaction work and the distributed practices that articulate ‘seamful’ representations and provide
for awareness and coordination.
相似文献
Tom RoddenEmail: |
18.
The problem of ‘information content’ of an information system appears elusive. In the field of databases, the information
content of a database has been taken as the instance of a database. We argue that this view misses two fundamental points.
One is a convincing conception of the phenomenon concerning information in databases, especially a properly defined notion
of ‘information content’. The other is a framework for reasoning about information content. In this paper, we suggest a modification
of the well known definition of ‘information content’ given by Dretske(Knowledge and the flow of information,1981). We then
define what we call the ‘information content inclusion’ relation (IIR for short) between two random events. We present a set
of inference rules for reasoning about information content, which we call the IIR Rules. Then we explore how these ideas and
the rules may be used in a database setting to look at databases and to derive otherwise hidden information by deriving new
relations from a given set of IIR. A prototype is presented, which shows how the idea of IIR-Reasoning might be exploited
in a database setting including the relationship between real world events and database values.
相似文献
Malcolm CroweEmail: |
19.
Fábio L. Verdi Maurício F. Magalhães Eleri Cardozo Edmundo R. M. Madeira Annikki Welin 《Journal of Network and Systems Management》2007,15(2):141-170
This work presents a service-oriented architecture for interdomain service provisioning in optical networks. The architecture
introduces a service layer that concentrates all the interactions among domains necessary for service provisioning. A service
layer is an alternative to the GMPLS (Generalized Multiprotocol Label Switching) architecture, but without a rigid control
plane as found in GMPLS. We start by defining a set of basic services to provide single end-to-end (e2e) interdomain connections.
Then, more sophisticated services are created through the composition of these basic services. The interdomain Optical VPN
(Virtual Private Network) service is considered in order to illustrate the composition of services. A prototype of the architecture
was designed and implemented using Web services as the main technology. The architecture was evaluated in terms of speed,
scalability, and bandwidth consumption necessary to establish e2e interdomain connections and Optical VPNs.
相似文献
Fábio L. VerdiEmail: |
20.
In map generalization various operators are applied to the features of a map in order to maintain and improve the legibility
of the map after the scale has been changed. These operators must be applied in the proper sequence and the quality of the
results must be continuously evaluated. Cartographic constraints can be used to define the conditions that have to be met
in order to make a map legible and compliant to the user needs. The combinatorial optimization approaches shown in this paper
use cartographic constraints to control and restrict the selection and application of a variety of different independent generalization
operators into an optimal sequence. Different optimization techniques including hill climbing, simulated annealing and genetic
deep search are presented and evaluated experimentally by the example of the generalization of buildings in blocks. All algorithms
used in this paper have been implemented in a web services framework. This allows the use of distributed and parallel processing
in order to speed up the search for optimized generalization operator sequences.
相似文献
Moritz NeunEmail: |