235,771 research outputs found
Model-driven design, simulation and implementation of service compositions in COSMO
The success of software development projects to a large extent depends on the quality of the models that are produced in the development process, which in turn depends on the conceptual and practical support that is available for modelling, design and analysis. This paper focuses on model-driven support for service-oriented software development. In particular, it addresses how services and compositions of services can be designed, simulated and implemented. The support presented is part of a larger framework, called COSMO (COnceptual Service MOdelling). Whereas in previous work we reported on the conceptual support provided by COSMO, in this paper we proceed with a discussion of the practical support that has been developed. We show how reference models (model types) and guidelines (design steps) can be iteratively applied to design service compositions at a platform independent level and discuss what tool support is available for the design and analysis during this phase. Next, we present some techniques to transform a platform independent service composition model to an implementation in terms of BPEL and WSDL. We use the mediation scenario of the SWS challenge (concerning the establishment of a purchase order between two companies) to illustrate our application of the COSMO framework
Cloud service localisation
The essence of cloud computing is the provision of software
and hardware services to a range of users in dierent locations. The aim of cloud service localisation is to facilitate the internationalisation and localisation of cloud services by allowing their adaption to dierent locales.
We address the lingual localisation by providing service-level language translation techniques to adopt services to dierent languages and regulatory localisation by providing standards-based mappings to achieve regulatory compliance with regionally varying laws, standards and regulations. The aim is to support and enforce the explicit modelling of
aspects particularly relevant to localisation and runtime support consisting of tools and middleware services to automating the deployment based on models of locales, driven by the two localisation dimensions.
We focus here on an ontology-based conceptual information model that integrates locale specication in a coherent way
A Conceptual Model for Scholarly Research Activity
This paper presents a conceptual model for scholarly research
activity, developed as part of the conceptual modelling work
within the ???Preparing DARIAH??? European e-Infrastructures
project. It is inspired by cultural-historical activity theory,
and is expressed in terms of the CIDOC Conceptual Reference
Model, extending its notion of activity so as to also
account, apart from historical practice, for scholarly research
planning. It is intended as a framework for structuring and
analyzing the results of empirical research on scholarly practice
and information requirements, encompassing the full
research lifecycle of information work and involving both
primary evidence and scholarly objects; also, as a framework
for producing clear and pertinent information requirements,
and specifications of digital infrastructures, tools and services
for scholarly research. We plan to use the model to tag interview
transcripts from an empirical study on scholarly information
work, and thus validate its soundness and fitness for
purpose
Interoperable Systems: an introduction
This short chapter introduces interoperable systems and attempts to distinguish the principal
research strands in this area. It is not intended as a review. Significant review material is
integrated with each of the succeeding chapters. It is rather intended to whet the appetite for
what follows and to provide some initial conceptual orientation.
This book concerns the architecture, modelling and management of interoperable computing
systems. Our collective research agenda addresses all aspects of interoperable systems
development, including the business and industry requirements and environments for
distributed information services
Sharing a conceptual model of grid resources and services
Grid technologies aim at enabling a coordinated resource-sharing and
problem-solving capabilities over local and wide area networks and span
locations, organizations, machine architectures and software boundaries. The
heterogeneity of involved resources and the need for interoperability among
different grid middlewares require the sharing of a common information model.
Abstractions of different flavors of resources and services and conceptual
schemas of domain specific entities require a collaboration effort in order to
enable a coherent information services cooperation.
With this paper, we present the result of our experience in grid resources
and services modelling carried out within the Grid Laboratory Uniform
Environment (GLUE) effort, a joint US and EU High Energy Physics projects
collaboration towards grid interoperability. The first implementation-neutral
agreement on services such as batch computing and storage manager, resources
such as the hierarchy cluster, sub-cluster, host and the storage library are
presented. Design guidelines and operational results are depicted together with
open issues and future evolutions.Comment: 4 pages, 0 figures, CHEP 200
Requirements modelling and formal analysis using graph operations
The increasing complexity of enterprise systems requires a more advanced
analysis of the representation of services expected than is currently possible.
Consequently, the specification stage, which could be facilitated by formal
verification, becomes very important to the system life-cycle. This paper presents
a formal modelling approach, which may be used in order to better represent
the reality of the system and to verify the awaited or existing systemâs properties,
taking into account the environmental characteristics. For that, we firstly propose
a formalization process based upon properties specification, and secondly we
use Conceptual Graphs operations to develop reasoning mechanisms of verifying
requirements statements. The graphic visualization of these reasoning enables us
to correctly capture the system specifications by making it easier to determine if
desired properties hold. It is applied to the field of Enterprise modelling
Conceptual Modelling of Emerging Technologies - The Use of Novel Electric Aircraft for Emergency Medical Services
Implementation of new technologies in operations systems sets specific requirements on simulation conceptual modelling, relating to uncertainties with respect to their specifications, changes implied for operations systems and regulatory frameworks restricting their operation. Furthermore, modellingobjectives may have to be tailored to innovation agendas made by potential adopters of technologies. In this paper, we explore the needs for extending current frameworks to facilitate conceptual modelling of new technologies, using a case study on the introduction of novel electric aircraft (eVTOLs) for Emergency Medical Services. Extensions proposed concern the choice of modelling objectives â which should be aligned with an innovation agenda, technology representation as model content, inputs and outputs â accounting for various uncertainties, and the modelling process â requiring a careful concerting with engineering efforts
Multiple conceptual modelling of perceived quality of in-flight airline services
Despite growing literature on the different aspects of airline service quality in relation to behavioural intentions, less attention has been paid to some specific aspects of in-flight services. The focus of the present research is, therefore, on a multiple conceptual model of the quality of in-flight services in relation to passengersâ perception of value, followed by recommendations (word of mouth - WOM) of airlines, as well as the quality and comfort of airline seats. The study is performed using two databases of reviewersâ/passengersâ opinions regarding the quality of in-flight airline services and airline seat comfort. Our research results reveal that the perceived comfort of the airplane seat is the most important factor of passengersâ perceived quality of in-flight airline services, which also considerably affects the passengersâ perception of value, and consequently moderates behavioural intentions (in our research, expressed through positive WOM). The analysis of the relative importance of the components of perceived airline seatsâ comfort shows that seat width is the most significant factor that contributes to the overall perceived comfort of the airline seat.https://doi.org/10.7307/ptt.v29i3.219529pubpub
Security analysis and modelling framework for critical infrastructure systems
The provision and delivery of many of the services that modern society enjoys are the result of ubiquitous critical infrastructure systems that permeate across many sectors of the Australian community. Moreover, the integration of technological enhancements and networking interconnections between critical infrastructure systems has heightened system interdependence, availability and resilience, including the efficient delivery of services to consumers within Australia\u27s industrialised society. This research delivers a system security analysis and system modelling framework tool based on an associated conceptual methodology as the basis for assessing security and conceptually modelling a critical infrastructure system incident. The intent to identify potential system security issues and gain operational insights that will contribute to improving system resilience, contingency planning development applicable to disaster recovery and ameliorating incident management responses for Australian critical infrastructure system incidents.<br /
Investigating brand equity of third-party service providers
Purpose: This research applies theory and techniques from the services and marketing literature to a supply chain context consisting of a shipper or seller, a customer or buyer, and a third-party logistics service provider (3PL) to investigate corporate brand equity resulting from service quality, customer satisfaction and customer loyalty towards the 3PL. Design/methodology/approach: A conceptual model was developed from the literature and tested with Finnish industrial firms using an online survey. Data were analysed using structural equation modelling to examine relationships among the four constructs. Findings: Hypothesised relationships among the four constructs in the conceptual model were supported however the relationship between loyalty and corporate brand equity was weak. Research limitations/implications: This investigatory research is based on a one country sample making transferability and generalisability to other countries difficult. Practical implications: The findings of this research should enable 3PL managers to determine service offerings that are most important to either shippers or customers, develop a service package using such offerings to satisfy needs, and thus build loyalty and corporate brand equity among both parties. Originality/value: This paper adds to our knowledge of these constructs in a supply chain context, particularly for 3PLs, and provides an interdisciplinary approach to research in the supply chain domain
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