منابع مشابه
Comparing Three Coordination Models: Reo, ARC, and RRD
Three models of coordination—Reo, Actors-Roles-Coordinators (ARC), and Reflective Russian Dolls (RRD)—are compared and contrasted according to a set of coordination features. Mappings between their semantic models are defined. Use of the models is illustrated by a small case study.
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The economy of Mexico is diversified, with the highest proportion of activity in its formal economic structure. Services account for 47.3 percent of GDP, community and social services 22.4 percent, financial services 13.5 percent, and transport and communications 11.4 percent. Industry generates 28.2 percent of GDP, and agriculture 5 percent. The informal sector is large. Although estimates of ...
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Abstract Tax is one of the main sources of financing government budget. Therefore, having a clear picture about the attainable amount of taxes are not only necessary for optimal allocation of scarce resources for tax collection, but also helps the government to develop precise tax collection programs .In this article, the structural features of the tax revenues series have first been examined ...
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ژورنال
عنوان ژورنال: International Astronomical Union Colloquium
سال: 2000
ISSN: 0252-9211
DOI: 10.1017/s0252921100058073