Service Definition, Deployment, Management and Architectures in Telecommunication Networks: From Intelligent Networks to Service Oriented Architectures Sarandis Mitropoulos (original) (raw)

1-Service Definition , Deployment , Management and Architectures in Telecommunication Networks : From Intelligent Networks to Service Oriented Architectures

2008

The rapid globalization of world enterprises and the pressing need to provide networks and services more responsive to the “end users” push the telecommunications world towards rapid service deployment and new integrated value-added technology solutions. Service orientation, initially introduced in Intelligent Networks and currently further exploited within the Service Oriented Architectures (SOA), seems to be the key for achieving the rapid development of new services with low cost. New value-added services as well as new business models drive the adoption of SOA in the telecommunications world. In this paper, we first discuss the requirements for a service-based approach, and then we overview the traditional service orientation in the telecoms sector, as well a main methodology for service definition and creation. A discussion of telecommunications service management follows together with an investigation of current Service Oriented Architectures, through the provision of some imp...

Toward a Telecommunications Service-Oriented Architecture

2007

Abstract: Web Services are often used for providing and composing business services but this approach does not scale easily for telecommunication services and for value added ones, composing services offered by IT providers with telecom operators ones.

Realization of Service-Orientation Paradigm in Network Architectures

The implementation of communication protocols in the current Internetarchitectureistightly-coupledwhichhinderstheevolutionoftheInternet.Thisarticle describes how the principles of Service Oriented Architecture (SOA)can be employed to develop a flexible network architecture. The prototypeof the concept has been developed and demonstrated in the EuroView 2012workshop. We showed that the SOA paradigm can be applied to networksby utilizing the concepts of self-contained building blocks, dynamic protocolgraphs (PGs) and functional composition (FC) methods. We demonstratedthatbothshort-termflexibility(i.e.,networksareadaptedbasedonapplicationrequirements) and long-term flexibility (i.e., networks can be evolved) can beachieved by using the architecture.

Service Orientation Paradigm in Future Network Architectures

The Internet can not keep up with changing application requirements and new network technologies as its network architecture makes it hard to introduce new functionality because existing functionalities in the Architecture are inherently tightly coupled. This article describes how the principles of Service Oriented Architecture (SOA) can help to develop more flexible network architecture. We argue that the SOA paradigm can be applied to networks by utilizing the concepts of self-contained building blocks, dynamic protocol graphs and selection and composition methods. In order to make use of flexible networks, applications must be decoupled from the protocols they use. We give a brief overview, of how some of these concepts are already implemented, by presenting few approaches. Finally we describe some challenges of service oriented network architecture.

Service-Oriented Design: The Roots

Lecture Notes in Computer Science, 2005

Service-Oriented Design has driven the development of telecommunication infrastructure and applications, in particular the so-called Intelligent Network (IN) Services, since the early 90s. A serviceoriented, feature-based architecture, a corresponding standardization of basic services and applications in real standards, and adequate programming environments enabled flexibilization of services, and dramatically reduced the time to market. Today the current trend toward triple-play services, which blend voice, video, and data on broadband wireline and wireless services builds on this successful experience when reaching for new technological and operational challenges. In this paper, we review our 10 years of experience in service engineering for telecommunication systems from the point of view of Service-Oriented Design then and now.

Potentials of Service-Orientated Architectures

The motivation for this contribution is to critically evaluate the concept of Service-Oriented Architecture (SOA) and to reflect the potentials of SOA by looking at it from a business administrative and a technical view. The evaluation covers a theoretical part, where the state-of-the-art of SOA is examined. Furthermore the chapter shows the results of a survey that was done with providers of SOA-products and potential customers for SOA-products. This survey is understood as a reflection of the SOA-market in Austria in 2006.

Towards a Telecommunication Service Oriented Architecture

2007

Web Services are often used for providing and composing business services but this approach does not scale easily for telecommunication services and for value added ones, composing services offered by IT providers with telecom operators ones. The typical request-response interaction style is the main bottleneck when applying web services protocols to the telecom domain, which requires higher performances and needs efficient ways to handle notifications of events produced by different network resources in the telecommunication infrastructure. This paper evaluates benefits and drawbacks of Web Service applications within a Telecom domain, analyzing current standardization proposals for asynchronous web services, which are a necessary evolution towards a fully interoperable telecommunication service oriented architecture.

Conceptual framework for services creation/development environment in telecom domain

Proceedings of the 10th International Conference on Information Integration and Web-based Applications & Services - iiWAS '08, 2008

The telecom service providers (fixed and mobile) understand that they must bring in new smart services in order to attract new customers, retain existing ones and increase revenue. The challenges and goals for doing so are as follows: determining which services are needed; introducing more services in a faster manner and at lower costs; delivering innovative services in a way that allows existing users to migrate smoothly to new ones. These goals could not be achieved with traditional closed and proprietary network infrastructure, as the vendor lock-in involved in that infrastructure results in limited scope of services, and dependency on old business models. New services require a much greater degree of system flexibility, performance and scalability, as well as open standards. Next Generation Network (NGN) provide the means for enabling agile service creation capabilities that facilitate better user experiences by integrating both new and legacy services across any access. However, NGNs involve complex structures even for simple services as they consist of a large number of building blocks and necessitate hierarchical models with a lot of parallel subsystems. Thus, particular attention has to be paid to understanding and modelling the performance of these systems. The rationale of this paper lies in developing a design and engineering methodology (based on a mathematical foundation) that addresses the service creation aspects for those fields in which traditional approaches will not work for NGNs.

Technical Criteria for Value-Added Services Creation, Execution and Deployment, on Next Generation Networks

2011

Create new services, in a faster way and at lower costs in order to attract new customers, keep existing ones and increase revenue, is the great target for telecom operators. This is possible with concepts like Next Generation Networks (NGNs), Service Delivery Platforms (SDPs) and Service Oriented Architecture (SOA), due to they enable the integration of the Telecommunications and Information Technologies (IT) domains. However, the telecom operators of non-developing countries have a limited knowledge about the technologies that adapt better to their needs, and how they can be used and integrated into their networks for Value-Added Services (VAS) provisioning. Therefore, a set of technical criteria that supports telecom operators in non-developing countries for VAS creation, execution and deployment, is proposed in this paper. In the same way, a general scheme for the establishment, description and definition of technical criteria is proposed under the context of NGN telecom operato...

Service-oriented modeling and architecture

IBM developer works, 2004

This article discusses the highlights of service-oriented modeling and architecture; the key activities that you need for the analysis and design required to build a Service-Oriented Architecture (SOA). The author stresses the importance of addressing the techniques required for the identification, specification and realization of services, their flows and composition, as well as the enterprisescale components needed to realize and ensure the quality of services required of a SOA.