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C loud, G rid, V olunteer, W eb. What they have in common Highly distributed Decentralized Large Complex What they don’t – the emperor has lots of different clothes W is a collection of standardized protocols, C G V are not
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Cloud, Grid, Volunteer, Web • What they have in common • Highly distributed • Decentralized • Large • Complex • What they don’t – the emperor has lots of different clothes • W is a collection of standardized protocols, C G V are not • W is easy to use, C V supposedly as well, G much less so • C G V can be and are implemented on top of W, but not the other way around • C V can be implemented on top of G • What about Implementing G on top of C? • What’s the role of modeling, analysis, evolution? • What’s the architecture? • W is REST and CREST • G V is “layered but not really” • What about C? • Who controls the architecture? • Of the substrate • Of the application • To what extent is it induced by C G V W?