<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="6.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">José Proença</style></author><author><style face="normal" font="default" size="100%">Dave Clarke</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Coordination Models Orc and Reo Compared</style></title><secondary-title><style face="normal" font="default" size="100%">Electronic Notes in Theoretical Computer Science</style></secondary-title></titles><dates><year><style  face="normal" font="default" size="100%">2008</style></year></dates><urls><related-urls><url><style face="normal" font="default" size="100%">https://haslab.uminho.pt/sites/default/files/joseproenca/files/orcandreocompared.pdf</style></url></related-urls></urls><number><style face="normal" font="default" size="100%">4</style></number><publisher><style face="normal" font="default" size="100%">Elsevier</style></publisher><volume><style face="normal" font="default" size="100%">194</style></volume><pages><style face="normal" font="default" size="100%">57–76</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p&gt;Orcand Reo are two complementary approaches to the problem of coordinating components or services. On one hand, Orc is highly asynchronous, naturally dynamic, and based on ephemeral connections to services. On the other hand, Reo is based on the interplay between synchronization and mutual exclusion, is more static, and establishes more continuous connections between components (services). The question of how Orcand Reo relate to each other naturally arises. In this paper, we present a detailed comparison between the two models. We demonstrate that embedding non-recursive Orc expressions into Reo connectors is straightforward, whereas recursive Orc expressions require an extension to the Reo model. For the other direction, we argue that embedding Reo into Orc would require signicantly more eort. We conclude with some general observations and comparisons between the two approaches.&lt;/p&gt;
</style></abstract><issue><style face="normal" font="default" size="100%">4</style></issue></record></records></xml>