Extended Fault Taxonomy of SOA-Based Systems

Service Oriented Architecture (SOA) is considered as a standard for enterprise software development. The main characteristics of SOA are dynamic discovery and composition of software services in a heterogeneous environment. These properties pose newer challenges in fault management of SOA-based systems (SBS). A proper understanding of different faults in an SBS is very necessary for effective fault handling. A comprehensive three-fold fault taxonomy is presented here that covers distributed, SOA specific and non-functional faults in a holistic manner. A comprehensive fault taxonomy is a key starting point for providing techniques and methods for accessing the quality of a given system. In this paper, an attempt has been made to outline several SBSs faults into a well-structured taxonomy that may assist developers to plan suitable fault repairing strategies. Some commonly emphasized fault recovery strategies are also discussed. Some challenges that may occur during fault handling of SBSs are also mentioned

Telecommunications and the World Trade Organization : the case of Mexico

The U.S.-Mexico case (2002-04) was the first (and so far only) case of World Trade Organization (WTO) dispute resolution on telecommunications services and the first on services only. The findings of the Panel charged with settling the dispute contain interpretations of the General Agreement on Trade in Services (GATS), especially its Annex on Telecommunications and the Reference Paper that sets regulatory principles. Although these interpretations strictly apply only to the case examined, they have implications for other countries and sectors and beyond trade law. The following are some of the findings. Telecommunications services originated in one country and terminated in another country are cross-border services under the GATS irrespective of whether the same service provider is present in both countries. The accounting rate regime, whereby operators share revenue from international services provided jointly, is subject to the discipline of cost-based interconnection for countries that have adopted the Reference Paper. Uniform settlement rates and proportional return are anticompetitive practices under the Reference Paper even when they are mandated by law. The lack of implementing regulations does not excuse the country from meeting its commitments under the GATS. Mexico and the United States, although not in full agreement with the Panel, did not appeal. An agreed plan to address the underlying legal and regulatory issues was successfully implemented in July 2005.ICT Policy and Strategies,Economic Theory&Research,Rural Communications,Trade and Services,Education for the Knowledge Economy

A European research roadmap for optimizing societal impact of big data on environment and energy efficiency

We present a roadmap to guide European research efforts towards a socially responsible big data economy that maximizes the positive impact of big data in environment and energy efficiency. The goal of the roadmap is to allow stakeholders and the big data community to identify and meet big data challenges, and to proceed with a shared understanding of the societal impact, positive and negative externalities, and concrete problems worth investigating. It builds upon a case study focused on the impact of big data practices in the context of Earth Observation that reveals both positive and negative effects in the areas of economy, society and ethics, legal frameworks and political issues. The roadmap identifies European technical and non-technical priorities in research and innovation to be addressed in the upcoming five years in order to deliver societal impact, develop skills and contribute to standardization.Comment: 6 pages, 2 figures, 1 tabl

A Critical Assessment of the Traditional Residential Real Estate Broker Commission Rate Structure

While real estate brokers have long set their fee as a straight percentage of a home's sale price, this formula is an anomaly and a primary reason why such fees may be inflated by more than $30 billion annually. Although competitive pressures ordinarily produce a fee structure reflecting costs, real estate broker commissions are strangely unrelated to either the quantity or quality of the service rendered or even to the value provided. Rather, this fee has been based solely on the price of the home. (It is as if divorce lawyers set their fee as a flat percentage of a client's net value, irrespective of whether the divorce was amicable without kids or involved bitterly contested custody and other issues . Oddly, not only is there no evidence that it is any more costly to sell higher-priced homes than median-priced properties, but it is possible that the opposite may be true! Furthermore, the straight percentage fee formula creates little incentive for real estate agents to provide home buyers or sellers with additional value. The article analyzes five elements of the traditional residential real estate broker rate structure, the most important of which are: 1) setting fees as a percentage-of-sale-price, 2) letting the seller's broker set the fee received by the buyer's broker, and 3) refusing to unbundle the price of a full package of services. After explaining the conditions under which such rate elements would be justified, this article finds that those conditions do not generally exist in the real estate brokerage market. Moreover, it identifies more than a half dozen harms that the rate elements cause to home buyers and sellers. For example, buyers are often not alerted to attractive homes because the rate structure leads traditional agents to intentionally avoid showing them. Meanwhile, many buyers do not even consider negotiating the fee paid to their broker because the rate structure causes them to believe their brokers' services cost them nothing. After this criticism, the article suggests that consumers would benefit most from a fee-for-service approach, combining flat fees, hourly fees, and bonuses, including percentages of extra value created, and it identifies currently available examples of some of these options. After reviewing eight reasons why incumbents are able to protect the current structure, the article suggests four questions that consumer media should teach consumers to ask to help undermine the industry's protectionist practices.Other Topics