889 resultados para quality of service, web services, composite web services, optimisation, genetic algorithms


Relevância:

100.00% 100.00%

Publicador:

Resumo:

Quality of service (QoS) can be a critical element for achieving the business goals of a service provider, for the acceptance of a service by the user, or for guaranteeing service characteristics in a composition of services, where a service is defined as either a software or a software-support (i.e., infrastructural) service which is available on any type of network or electronic channel. The goal of this article is to compare the approaches to QoS description in the literature, where several models and metamodels are included. consider a large spectrum of models and metamodels to describe service quality, ranging from ontological approaches to define quality measures, metrics, and dimensions, to metamodels enabling the specification of quality-based service requirements and capabilities as well as of SLAs (Service-Level Agreements) and SLA templates for service provisioning. Our survey is performed by inspecting the characteristics of the available approaches to reveal which are the consolidated ones and which are the ones specific to given aspects and to analyze where the need for further research and investigation lies. The approaches here illustrated have been selected based on a systematic review of conference proceedings and journals spanning various research areas in computer science and engineering, including: distributed, information, and telecommunication systems, networks and security, and service-oriented and grid computing.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Ambient Intelligence could support innovative application domains like motor impairments' detection at the home environment. This research aims to prevent neurodevelopmental disorders through the natural interaction of the children with embedded intelligence daily life objects, like home furniture and toys. Designed system uses an interoperable platform to provide two intelligent interrelated home healthcare services: monitoring of children¿s abilities and completion of early stimulation activities. A set of sensors, which are embedded within the rooms, toys and furniture, allows private data gathering about the child's interaction with the environment. This information feeds a reasoning subsystem, which encloses an ontology of neurodevelopment items, and adapts the service to the age and acquisition of expected abilities. Next, the platform proposes customized stimulation services by taking advantage of the existing facilities at the child's environment. The result integrates Embedded Sensor Systems for Health at Mälardalen University with UPM Smart Home, for adapted services delivery.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The emergence of widespread offshoring of information-intensive services is arguably one of the more impactful phenomena to transform business in the last ten years. A growing body of research has examined the firm-level drivers andlocation factors (i.e., the why's and where's) of services offshoring. However, little empirical research has examined the maturation sequencing (or when's) of services offshoring. Adopting industry life cycle theory as a framework, the key research questions examined in the paper are: when do different categories of offshoring services provision change from being emergent sectors to more mature ones, and how does the timing of this sequence relate to the type of service offshored. Using a database of 1420 offshore services FDI projects, we find that the value-add as well as the information sensitivity of the service category are related to when the service categories progress through the industry life cycle. Implications for future waves of service offshoring are discussed.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

"Prepared for: U.S. ... National Highway Traffic Safety Administration.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

The Steering Committee recognizes that the Departments may need to implement reviews necessary to address specific Federal requirements and that while consolidated reporting should be used when possible, the review and reporting processes should facilitate the ability to garner Federal funding. However, the analysis thus far confirms the need for change and a significant potential to reduce redundant monitoring and reporting. At the end of this Executive Summary, there is a summary presentation, including a timeline and progress indicators, that gives more details on these recommendations.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Prepared for Dept. of Transportation, Office of Transportation Systems Analysis and Information, and the National Center for Productivity and Quality of Working Life; under contract no. NP5AC019.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

Despite current imperatives to measure client outcomes, social workers have expressed frustration with the ability of traditional forms of quantitative methods to engage with complexity, individuality and meaning. This paper argues that the inclusion of a meaning-based as opposed to a function-based approach to quality of life (QOL) may offer a quantitative means of measurement that is congruent with social-work values and practice.

Relevância:

100.00% 100.00%

Publicador:

Resumo:

A mobile interactive online health system was used to conduct virtual ward rounds at a regional hospital which had no specialist paediatrician. The system was wireless, which allowed telepaediatric services to be delivered direct to the bedside. Between December 2004 and May 2005, 43 virtual ward rounds were coordinated between specialists based in Brisbane and local staff at the Gladstone Hospital. Eighty-six consultations were provided for 64 patients. The most common conditions included asthma (27%), chest infections (12%), gastroenteritis (10%) and urinary tract infections (10%). In the majority of cases, there were partial (67%) or complete changes (11%) in the clinical management of patients. Specialist services were offered by a team of 13 clinicians at the Royal Children's Hospital: 10 general paediatricians, two physiotherapists and one registered nurse. Feedback from all consultants involved in the service and local staff in Gladstone was extremely positive. In 43 videoconference calls there were three technical problems, probably due to an intermittent mains power supply at the regional hospital. There appears to be potential for other rural and regional hospitals to adopt this model of service delivery.