Search results for "Frame"
showing 10 items of 1767 documents
Case study for 3G/UMTS services and billing methods
2001
The 3G/UMTS-networks and services will provide a wide range of telecommunication services. To achieve, this, we need a new view to networks, network services and service abilities. The amount of service providers in the 3G networks will be at least the same than in the present Internet. The amount of users in the 3G networks will overgrow the user amount of Internet forming a global worldwide communication society. This paper discusses customer billing in the 3G world. There are some main issues that are not very, clear to all 3G service and network providers, which however, should be settled before, 3G networks are operational. One of the most important matters is the QoS (Quality of Servi…
Switching Behaviour in Smart Phone Messaging Services : It’s a Question of Context, Content, and Features of the Service
2021
This paper studies switching behaviour in smart phone messaging services. This study aims to add knowledge about the factors affecting switching behaviour in smart phone messaging services. The empirical study is qualitative, and the data was collected with interviews using the laddering method. This study was carried out to find out the reasons behind customer decisions when choosing between smart phone messaging services. Using the Push-Pull Mooring framework, the findings of this study indicate that the switching decision regarding smart phone messaging service is influenced by three factors: the context of the message, the content of the message, and the features of the service.
A global service level guarantee in NGN networks
2010
In this paper, we propose an end-to-end service level negotiation protocol which enables a global service offer covering quality of service (QoS) and security while taking into account user's mobility in this offer. This protocol provides all the domains involved in the transport of a various offered services with a negotiation capability to achieve an agreement on a service level. This paper shows also results of measurements evaluating the performances of the considered negotiation protocol and security impact on QoS.
Healthcare access of immigrants: An integrated ecological framework
2019
Access to healthcare impacts in health, and for its importance it has been conceptualized by different theoretical models. Theories tackling social barriers have been established too. Nevertheless, a lack of theorization about healthcare access of immigrants exists, and there is no theory able to integrate all the scientific literature on this and its impact on the health of immigrants. In order to study the factors relating to the access of immigrants and to guide the development and evaluation of public health interventions, an integrative approach is needed. In this regard, from an ecological perspective healthcare access of immigrants would be shaped by interrelated factors in different…
PMG-pro: A model-driven method for the development of service-based applications in a heterogenous services environment
2010
This paper presents PMG-pro (present, model, generate and provide), a development method of service-based applications. With PMG-pro, the composition of heterogeneous pre-made services is done at model levels and thereby different executable software systems for different target platforms can be generated automatically. To illustrate the method, we present a case study of developing a service-based application in a smart home environment.
Transformations in Lifelong Guidance Provision
2012
In this chapter, the transformations taking place at the different levels of guidance provision are analyzed. The aim was to provide a tool to examine the interface between multisectoral guidance practice and policy development. On the basis of earlier research on regional guidance networks, a model is introduced in which schools, social, health, and public employment services can jointly design, implement, and evaluate guidance services. The model for Networked Guidance Service Provision (NEGSEP) focuses separately on the developmental needs of guidance services visible to clients, both with regard to service delivery and strategic dimensions. Along this line, a framework for networked gui…
Improvement of a Service Level Negotiation Protocol using Formal Verification
2013
International audience; The goal of the pervasive connectivity is to enable mobile users to be permanently connected to the Internet. Mobile users are often connected to wireless networks and consuming services that require quality of service guarantees. Accessing services using wireless technologies may make the service delivery vulnerable to security attacks because of the open medium of these technologies. In this context, we need to guarantee both quality of service and security for mobile users communications. In this paper, we present a protocol for service level negotiation which covers both quality of service and security and assigns a profile to each user in order to optimize and a…
Absorptive capacity and its impact on innovation and performance: findings from SEM and fsQCA
2018
Innovation can provide sustainable competitive advantages to service companies that consider the absorption of external knowledge a key strategic issue. Using the four dimensions of absorptive capacity, this study examined the impact of absorptive capacity on innovation in service delivery processes and explored how this innovation influences business performance. Structural equation modeling (PLS-SEM) and fuzzy-set qualitative comparative analysis (fsQCA) were applied to a sample of 134 companies drawn from the Colombian tourism sector. The results of the SEM indicate that innovation in service delivery processes is positively influenced by two of the four dimensions of absorptive capacity…
Relativistic Positioning Systems in Flat Space-Time: The Location Problem
2013
The location problem in relativistic positioning is considered in flat space-time. When two formal solutions are possible for a user (receiver) of the system, its true location may be obtained from a standard set of emission data extended with an observational rule. The covariant expression giving the location of the user in inertial coordinates is decomposed with respect to an inertial observer.
TRACLAS: a project to improve under canopy tractor safety in case of overturning
2018
Poster Abstract non previsto