64,045 research outputs found

    Exploring Maintainability Assurance Research for Service- and Microservice-Based Systems: Directions and Differences

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    To ensure sustainable software maintenance and evolution, a diverse set of activities and concepts like metrics, change impact analysis, or antipattern detection can be used. Special maintainability assurance techniques have been proposed for service- and microservice-based systems, but it is difficult to get a comprehensive overview of this publication landscape. We therefore conducted a systematic literature review (SLR) to collect and categorize maintainability assurance approaches for service-oriented architecture (SOA) and microservices. Our search strategy led to the selection of 223 primary studies from 2007 to 2018 which we categorized with a threefold taxonomy: a) architectural (SOA, microservices, both), b) methodical (method or contribution of the study), and c) thematic (maintainability assurance subfield). We discuss the distribution among these categories and present different research directions as well as exemplary studies per thematic category. The primary finding of our SLR is that, while very few approaches have been suggested for microservices so far (24 of 223, ?11%), we identified several thematic categories where existing SOA techniques could be adapted for the maintainability assurance of microservices

    Ontology-based patterns for the integration of business processes and enterprise application architectures

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    Increasingly, enterprises are using Service-Oriented Architecture (SOA) as an approach to Enterprise Application Integration (EAI). SOA has the potential to bridge the gap between business and technology and to improve the reuse of existing applications and the interoperability with new ones. In addition to service architecture descriptions, architecture abstractions like patterns and styles capture design knowledge and allow the reuse of successfully applied designs, thus improving the quality of software. Knowledge gained from integration projects can be captured to build a repository of semantically enriched, experience-based solutions. Business patterns identify the interaction and structure between users, business processes, and data. Specific integration and composition patterns at a more technical level address enterprise application integration and capture reliable architecture solutions. We use an ontology-based approach to capture architecture and process patterns. Ontology techniques for pattern definition, extension and composition are developed and their applicability in business process-driven application integration is demonstrated

    The geography of entrepreneurship in the New York metropolitan area

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    This article was presented at a conference organized by the Federal Reserve Bank of New York in April 2005, "Urban Dynamics in New York City." The goal of the conference was threefold: to examine the historical transformations of the engine-of-growth industries in New York and distill the main determinants of the city's historical dominance as well as the challenges to its continued success; to study the nature and evolution of immigration flows into New York; and to analyze recent trends in a range of socioeconomic outcomes, both for the general population and recent immigrants more specifically.Business enterprises - New York (N.Y.) ; Economic conditions - New York (N.Y.) ; Federal Reserve District, 2nd ; Urban economics

    Do we need one science of production in healthcare?

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    The question addressed is: Is there need, in health care, for one consolidated science of production? For responding to this question, the classical science of production is reviewed and the current approaches to production and service in healthcare are analysed as for their evolution and current status. It is found that these current movements are not self-aware of the restrictions deriving from their backgrounds, and of the resultant partiality in their approaches. It is concluded that improvement of healthcare is slowed down by the fragmentation of the related disciplines; thus one consolidated science of production (of healthcare) is needed

    A Tissue Engineering product development pathway

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    Tissue engineering is a field of inquiry and research that uses engineering techniques and principles of biological sciences to develop functional substitutes for reconstruction of damaged organs. Commercial translation of tissue engineering products is currently in progress all over the world. Many companies are moving their interest towards this market segment that grows by 6% per year. Aim of this thesis is to probe the possibility of developing tissue engineering products in the most cost-effective way, minimizing the industrial risk and developing a specific fund raising model. Tissue engineering is based on three main features: cells, scaffolds and bioreactors. Cells are seeded on a scaffold and cultured in a bioreactor in order to obtain a tissue engineering product. Nevertheless, developing cell carrying products is hampered by certification claims ("advanced therapies" certification rules) that unbearably increase R&D and certification costs and can be faced by either big companies or start-ups of big companies and spin-offs of complex aggregates of research centers involved in advanced cell research. On the other hand, scaffolds (certification class IIb) and bioreactors for tissue engineering (certification class I) can be developed with a lower economic effort, being the competition based on innovation, since their market is in the "growth phase" for scaffolds and in the "introduction phase" for bioreactors in the Levitt's product life cycle theory. Purpose of this thesis is to basically study scaffold and bioreactor features, then to preliminarily design some models of bioreactors and, eventually, to set a business model, based on private and public fund raising, aimed to the development of scaffolds for dental implantology and of bioreactors for cardiovascular and bone tissue engineering. Finally, a business plan of a company being spin-off of Politecnico di Torino and industrial start-up has been elaborate

    Anti-money laundering and counter-terrorism financing survey of regulated businesses in Australia - methodology report

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    This report provides a stand-alone description of how the Australian Institute of Criminology’s Anti-money Laundering/Counter-terrorism Financing Survey of regulated businesses was undertaken, emphasising the importance of understanding the methodology and design of this national census of regulated businesses in Australia. As is often the case with social scientific research of a quantitative nature, the detail of how surveys were conducted are sometimes relegated to deep within a long report, or attached in a lengthy appendix, often being overlooked by the average reader. This report provides a stand-alone description of how the Australian Institute of Criminology’s Anti-money Laundering/Counter-terrorism Financing Survey of regulated businesses was undertaken, thus emphasising the importance of understanding the methodology and design of this national census of regulated businesses in Australia. It reviews all of the procedures and steps undertaken from a data collection and methodological perspective and provides an important accompaniment to the major survey report published in conjunction with this methodological review. Both reports should be read together. The current report provides a summary of the methodological approach, consolidation of assorted reports generated throughout the study, a review of sample utilisation and response dynamics and a summary of issues for consideration for future similar surveys

    Overhauling corporate taxation in the digital economy. CEPS Policy Insights No 2019-15/October 2019

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    Is the corporate income tax (CIT) still an efficient system for taxing companies today? The CIT was introduced when economies were characterised primarily by tangible assets and goods and by limited international trade. Globalisation, digitalisation and the increasing weight of immaterial goods in company transactions and balance sheets have rendered that system outdated. These radical changes call for equally radical reflections on how to reform the CIT, bearing in mind the need for a corporate tax system that is fit for both the digital and the traditional economy, in developing and developed countries alike. Rather than offering a complete solution, this paper discusses various approaches that could contribute to a solution. First, we suggest that the CIT base should always be strictly aligned with the accounting profit and loss account, eschewing special adjustments for tax purposes. Second, a more radical possibility would be to abandon altogether the reference to corporate income and tax companies instead on cash flow, based on destination. And, third, the possibility could also be explored to tax companies with reference to ‘presumptive’ indicators of activity, rather than on the basis of public accounts. Presumptive indicators are already used in federal systems to allocate corporate income among decentralised jurisdictions. These propositions would not be viable without international agreement, at least at the level of the European Union. Such an agreement may prove difficult given the conflicts of interest between EU member states and between them and the United State
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