File Download
  Links for fulltext
     (May Require Subscription)
Supplementary

Article: Maintaining temporal consistency of discrete objects in soft real-time database systems

TitleMaintaining temporal consistency of discrete objects in soft real-time database systems
Authors
KeywordsReal-time database
Temporal consistency
Transaction scheduling
Updates
View maintenance
Issue Date2003
PublisherI E E E. The Journal's web site is located at http://www.computer.org/tc
Citation
Ieee Transactions On Computers, 2003, v. 52 n. 3, p. 373-389 How to Cite?
AbstractA real-time database system contains base data items which record and model a physical, real-world environment. For better decision support, base data items are summarized and correlated to derive views. These base data and views are accessed by application transactions to generate the ultimate actions taken by the system. As the environment changes, updates are applied to base data, which subsequently trigger view recomputations. There are thus three types of activities: Base data update, view recomputation, and transaction execution. In a real-time database system, two timing constraints need to be enforced. We require that transactions meet their deadlines (transaction timeliness) and read fresh data (data timeliness). In this paper, we define the concept of absolute and relative temporal consistency from the perspective of transactions for discrete data objects. We address the important issue of transaction scheduling among the three types of activities such that the two timing requirements can be met. We also discuss how a real-time database system should be designed to enforce different levels of temporal consistency.
Persistent Identifierhttp://hdl.handle.net/10722/43662
ISSN
2015 Impact Factor: 1.723
2015 SCImago Journal Rankings: 0.924
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorKao, Ben_HK
dc.contributor.authorLam, KYen_HK
dc.contributor.authorAdelberg, Ben_HK
dc.contributor.authorCheng, Ren_HK
dc.contributor.authorLee, Ten_HK
dc.date.accessioned2007-03-23T04:51:30Z-
dc.date.available2007-03-23T04:51:30Z-
dc.date.issued2003en_HK
dc.identifier.citationIeee Transactions On Computers, 2003, v. 52 n. 3, p. 373-389en_HK
dc.identifier.issn0018-9340en_HK
dc.identifier.urihttp://hdl.handle.net/10722/43662-
dc.description.abstractA real-time database system contains base data items which record and model a physical, real-world environment. For better decision support, base data items are summarized and correlated to derive views. These base data and views are accessed by application transactions to generate the ultimate actions taken by the system. As the environment changes, updates are applied to base data, which subsequently trigger view recomputations. There are thus three types of activities: Base data update, view recomputation, and transaction execution. In a real-time database system, two timing constraints need to be enforced. We require that transactions meet their deadlines (transaction timeliness) and read fresh data (data timeliness). In this paper, we define the concept of absolute and relative temporal consistency from the perspective of transactions for discrete data objects. We address the important issue of transaction scheduling among the three types of activities such that the two timing requirements can be met. We also discuss how a real-time database system should be designed to enforce different levels of temporal consistency.en_HK
dc.format.extent1215317 bytes-
dc.format.extent25600 bytes-
dc.format.mimetypeapplication/pdf-
dc.format.mimetypeapplication/msword-
dc.languageengen_HK
dc.publisherI E E E. The Journal's web site is located at http://www.computer.org/tcen_HK
dc.relation.ispartofIEEE Transactions on Computersen_HK
dc.rightsCreative Commons: Attribution 3.0 Hong Kong License-
dc.rights©2003 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.en_HK
dc.subjectReal-time databaseen_HK
dc.subjectTemporal consistencyen_HK
dc.subjectTransaction schedulingen_HK
dc.subjectUpdatesen_HK
dc.subjectView maintenanceen_HK
dc.titleMaintaining temporal consistency of discrete objects in soft real-time database systemsen_HK
dc.typeArticleen_HK
dc.identifier.openurlhttp://library.hku.hk:4550/resserv?sid=HKU:IR&issn=0018-9340&volume=52&issue=3&spage=373&epage=389&date=2003&atitle=Maintaining+temporal+consistency+of+discrete+objects+in+soft+real-time+database+systemsen_HK
dc.identifier.emailKao, B:kao@cs.hku.hken_HK
dc.identifier.emailCheng, R:ckcheng@cs.hku.hken_HK
dc.identifier.authorityKao, B=rp00123en_HK
dc.identifier.authorityCheng, R=rp00074en_HK
dc.description.naturepublished_or_final_versionen_HK
dc.identifier.doi10.1109/TC.2003.1183951en_HK
dc.identifier.scopuseid_2-s2.0-0037341489en_HK
dc.identifier.hkuros75783-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-0037341489&selection=ref&src=s&origin=recordpageen_HK
dc.identifier.volume52en_HK
dc.identifier.issue3en_HK
dc.identifier.spage373en_HK
dc.identifier.epage389en_HK
dc.identifier.isiWOS:000181266600009-
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridKao, B=35221592600en_HK
dc.identifier.scopusauthoridLam, KY=7403656886en_HK
dc.identifier.scopusauthoridAdelberg, B=6507956232en_HK
dc.identifier.scopusauthoridCheng, R=7201955416en_HK
dc.identifier.scopusauthoridLee, T=7501438213en_HK

Export via OAI-PMH Interface in XML Formats


OR


Export to Other Non-XML Formats