Abstract
World today having several services on Web generates high volume of data around, so much so that one cannot just afford to ignore. These data volumes together usually referred as big data, though look heterogeneous and unrelated at a glance; still, big data carry striking relations among them implicitly as well as explicitly, so that many users across the world may get interested of data patterns being generated at a far end of the world. Thus, there is a need to deliver big data available on cyberspace to users as per their needs. This brings in a notion of big data service. For such service, we here propose a cyber infrastructure that takes user’s data request and finds an appropriate data service provider to deliver data. We also propose an approach for SLA: service level agreement specification. SLA for a service is derived from SLAs of data consumer and provider on negotiation. Matching of consumer’s SLA to that of a provider SLA and a process of negotiation between these two are illustrated.
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