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dc.contributor.authorAlhajj, Redaen_US
dc.contributor.authorArkun, M. Erolen_US
dc.date.accessioned2016-02-08T12:02:18Zen_US
dc.date.available2016-02-08T12:02:18Zen_US
dc.date.issued1992en_US
dc.identifier.urihttp://hdl.handle.net/11693/27817en_US
dc.description.abstractProper and efficient handling of schema changes is an important aspect of any object-oriented database management system. Clearly, it is desirable for an object-oriented database management system to satisfy as many schema operations as possible. This paper deals with schema changes in ODS; an object-oriented database management system prototype. A brief description of the basic features of ODS along with its storage and indexing models are included to facilitate the treatment. The invariants of the class hierarchy/lattice as well as the rules for resolving ambiguities due to schema changes are discussed. In addition, schema changes handled by ODS are described. Schema modifications are done through the user interface of ODS that provides both a class browser and a programming shell. Versions are supported by ODS in handling both methods and messages. For composite objects name conflicts are handled by considering both superclasses and nesting classes.en_US
dc.language.isoEnglishen_US
dc.source.titleAmerican Society of Mechanical Engineers, Petroleum Division (Publication) PDen_US
dc.subjectDatabase systemsen_US
dc.subjectIndexing modelsen_US
dc.subjectNesting classesen_US
dc.subjectObject oriented database systemen_US
dc.subjectSchema changesen_US
dc.subjectComputer programmingen_US
dc.titleSchema changes in an object-oriented database systemen_US
dc.typeConference Paperen_US
dc.departmentDepartment of Mechanical Engineeringen_US
dc.citation.spage103en_US
dc.citation.epage107en_US
dc.citation.volumeNumber47en_US
dc.citation.issueNumber4en_US
dc.publisherASMEen_US


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