Engineering telecommunication services with SDL

If formal techniques are to be more widely accepted then they should evolve as current software engineering approaches evolve. Current techniques in the development of distributed systems use interface definition languages (IDLs) as a basis for the underlying communication and also as an abstraction tool. Object-oriented technologies [6] and the idea of engineering software through frameworks [5] are also widely accepted approaches in developing software. In this paper we show how the formal specification language SDL and associated tool support have been applied in the TOSCA1 project to engineer telecommunication services using these current techniques

Business-oriented development of telecommunication services

The development of software for distributed systems, e.g. telecommunication services, is a complex activity. Numerous issues have to be resolved when developing such systems, examples of which are language/system heterogeneity and remoteness of components. Interface definition languages (IDLs) are used as the basis for addressing some of these issues. IDLs allow for the specification of the syntactic aspects of the interfaces of the components in the system to be made. Whilst lending itself to issues of heterogeneity and location transparency, dealing with IDL as the basis for system development is not without its problems. Two of the main problems with IDL are its lack of behaviour and its lack of abstraction. Thus designers should not be constrained to work within the syntactic notations used to implement their systems, nor should they be unaided in how they might better design their systems. In this paper we show how these issues are being addressed in the TOSCA project in its development of a service creation and validation environment

Experiences modelling and using object-oriented telecommunication service frameworks in SDL

This paper describes experiences in using SDL and its associated tools to create telecommunication services by producing and specialising object-oriented frameworks. The chosen approach recognises the need for the rapid creation of validated telecommunication services. It introduces two stages to service creation. Firstly a software expert produces a service framework, and secondly a telecommunications ‘business consultant' specialises the framework by means of graphical tools to rapidly produce services. Here the focus is given to the underlying technology required. In particular, the advantages and disadvantages of SDL and tools for this purpose are highlighted

Engineering of interworking TINA-based telecommunication services

This paper describes a Service Creation approach being developed in the EU funded ACTS TOSCA (TINA Open Service Creation Architecture) project to rapidly develop validated TINA based multimedia telecommunications services. The approach is based around object-oriented software frameworks in SDL which are specialized towards services by means of graphical paradigm tools. Further, in TOSCA, the need for service interworking across service provider domains via federation has been recognized in order to allow users to join service sessions offered by providers they are not customers of. However, service interworking may cause undesired behavior - the so called service interaction phenomenon. This paper focuses on this issue and the underlying technology of the service creation approach with emphasis on how service federation has been implemented

Indo-US FTA: Prospects for the Telecommunication Sector

Since telecommunication is one of the main drivers of economic growth and globalization, WTO (World Trade Organization) negotiations and New Age FTAs (Free Trade Agreements) have focused on liberalizing trade in this sector. The present paper analyses the possibilities of liberalizing trade in telecommunication services if India and its largest trading partner-the US-enter into a bilateral agreement. The study found that India and the US have trade complementarities in telecommunication services and that it should be a priority sector in the FTA negotiations. The study identified certain areas such as R&D related to telecommunication and broadband infrastructure where collaboration between companies of both countries would be mutually beneficial. The study found that telecommunication services have been significantly liberalized in the US FTAs-much beyond the scope of the GATS and the Reference Paper on Basic Telecommunications. While the current policy regime in India is consistent with some of the requests made by the US in its bilateral negotiations, for meeting others, the policy regime needs to be examined and, if required, reformed. The present paper suggests certain reforms which would enhance the productivity, efficiency and global competitiveness of the sector and enable the country to benefit from the bilateral liberalization.Indo-US FTA, GATS, bilateral agreements, telecommunication, services

"Telecommunication Services and Economic Growth: Evidence from India"

This paper estimates the contribution of telecommunication (or telecom) services to aggregate economic growth in India. Estimated contribution is distinguished between public and private sectors to highlight the impact of telecom privatization on economic growth. Knowledge of policy determinants of demand of telecom services is shown to be essential to enhance growth contribution of telecom services. Using a recent sample survey data from Karnataka State in South India, price and income determinants of demand for telecom services are estimated by capacity of telephone exchanges Estimation results offer evidence for significant negative own price elasticity and positive income elasticity of demand for telecom services. In addition, survey data are used to show for non-economic factors that influence demand for telecom services including non-awareness of the usage and cost of value added services. These results have implications for design of a national policy for promotion of demand for telecom services and economic growth.

Creating telecommunication services based on object-oriented frameworks and SDL

This paper describes the tools and techniques being applied in the TINA Open Service Creation Architecture (TOSCA) project to develop object-oriented models of distributed telecommunication services in SDL. The paper also describes the way in which Tree and Tabular Combined Notation (TTCN) test cases are derived from these models and subsequently executed against the CORBA-based implementations of these services through a TTCN/CORBA gateway

Studies on anonymous telecommunication services

制度:新 ; 報告番号:甲2953号 ; 学位の種類:博士(国際情報通信学) ; 授与年月日:2010/3/15 ; 早大学位記番号:新519

Mexico - Measures Affecting Telecommunications Services (WT/DS204/R) A Comment on "El mess in TELMEX”

This chapter reviews the panel report on Mexico - Measures Affecting Telecommunication Services. The Panel considered claims by the United States that Mexico acted inconsistently with its obligations in respect to the liberalization of its market for telecommunication services. It is the first Panel to consider solely the rules agreed upon in the General Agreement on Trade in Services (GATS). It is also the first Panel to deal with the telecommunication services industry and its complex layers of legislation, in particular the rules agreed to in the Telecommunications Reference Paper (TRP) on pro-competitive regulatory principles. Viewed from this perspective, this report is, because of its potential as a precedent, of particular significanc

CELEBRITY ENDORSEMENT AND CONSUMER BUYING BEHAVIOUR TOWARDS TELECOMMUNICATION SERVICES

This study examined the influence of celebrity endorsement on consumer buying behaviour towards telecommunication services. It sought to determine the influences of celebrity credibility, celebrity attractiveness and celebrity popularity on consumer buying behaviour towards telecommunication services. Exploratory research design was adopted. Primary data were obtained from 133 telecommunication service subscribers using a structured questionnaire. Data analysis was done using descriptive statistics and multiple linear regression was adopted for hypotheses testing. The study found that celebrity popularity (? = .430; p-value = 0.000 < 0.05) had the highest significant positive influence on consumer buying behaviour towards telecommunication services, followed by celebrity credibility (? = .357; p-value = 0.000 < 0.05) and celebrity attractiveness (? = .215; p-value = 0.002 < 0.05). Therefore, it was concluded that celebrity endorsement has a significant positive influence on consumer buying behaviour in the context of telecommunication services. Consequently, pertinent recommendations were made for possible implementation by industry practitioners. Keywords: Celebrity Endorsement, Consumer Buying Behaviour, Telecommunications, Consumer Persuasion Mode