?url_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rft.title=Towards+data-aware+cost-driven+adaptation+for+service+orchestrations.&rft.creator=Ivanovic%2C+Dragan&rft.creator=Carro+Li%C3%B1ares%2C+Manuel&rft.creator=Hermenegildo%2C+Manuel+V.&rft.creator=L%C3%B3pez+Garc%C3%ADa%2C+Pedro&rft.creator=Mera%2C+E.&rft.subject=Computer+Science&rft.description=Several+activities+in+service+oriented+computing%2C+such+as+automatic+composition%2C+monitoring%2C+and+adaptation%2C+can+benefit+from+knowing+properties+of+a+given+service+composition+before+executing+them.+Among+these+properties+we+will+focus+on+those+related+to+execution+cost+and+resource+usage%2C+in+a+wide+sense%2C+as+they+can+be+linked+to+QoS+characteristics.+In+order+to+attain+more+accuracy%2C+we+formulate+execution+costs+%2F+resource+usage+as+functions+on+input+data+(or+appropriate+abstractions+thereof)+and+show+how+these+functions+can+be+used+to+make+better%2C+more+informed+decisions+when+performing+composition%2C+adaptation%2C+and+proactive+monitoring.+We+present+an+approach+to%2C+on+one+hand%2C+synthesizing+these+functions+in+an+automatic+fashion+from+the+definition+of+the+different+orchestrations+taking+part+in+a+system+and%2C+on+the+other+hand%2C+to+effectively+using+them+to+reduce+the+overall+costs+of+non-trivial+service-based+systems+featuring+sensitivity+to+data+and+possibility+of+failure.+We+validate+our+approach+by+means+of+simulations+of+scenarios+needing+runtime+selection+of+services+and+adaptation+due+to+service+failure.+A+number+of+rebinding+strategies%2C+including+the+use+of+cost+functions%2C+are+compared.&rft.publisher=Facultad+de+Inform%C3%83%C2%A1tica+(UPM)&rft.rights=https%3A%2F%2Fcreativecommons.org%2Flicenses%2Fby-nc-nd%2F3.0%2Fes%2F&rft.date=2010-03&rft.type=info%3Aeu-repo%2Fsemantics%2Fother&rft.type=Monograph&rft.type=PeerReviewed&rft.format=application%2Fpdf&rft.language=eng&rft.relation=http%3A%2F%2Fclip.dia.fi.upm.es%2Fpapers%2Fivanovic09-cost-adaptation-tr.pdf&rft.rights=info%3Aeu-repo%2Fsemantics%2FopenAccess&rft.identifier=https%3A%2F%2Foa.upm.es%2F14692%2F