{"id":"https://openalex.org/W6645450","doi":"https://doi.org/10.1145/101620.101635","title":"O 2 an object-oriented data model","display_name":"O 2 an object-oriented data model","publication_year":1990,"publication_date":"1990-11-01","ids":{"openalex":"https://openalex.org/W6645450","doi":"https://doi.org/10.1145/101620.101635","mag":"6645450"},"language":"en","primary_location":{"id":"doi:10.1145/101620.101635","doi":"https://doi.org/10.1145/101620.101635","is_oa":false,"landing_page_url":"https://doi.org/10.1145/101620.101635","pdf_url":null,"source":{"id":"https://openalex.org/S4306462769","display_name":"ACM eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"ebook platform"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advances in database programming languages","raw_type":"other"},"volume":{"id":"https://openalex.org/W2145319497","display_name":"Advances in database programming languages"},"type":"book-chapter","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5082658683","display_name":"Christophe L\u00e9cluse","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Christophe Lecluse","raw_affiliation_strings":[""],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"","institution_ids":[]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5074614459","display_name":"Philippe R. Richard","orcid":"https://orcid.org/0009-0000-7271-1352","observed_orcids":["https://orcid.org/0009-0000-7271-1352"]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Philippe Richard","raw_affiliation_strings":[""],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"","institution_ids":[]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5111933679","display_name":"Fernando V\u00e9lez","orcid":null,"observed_orcids":[]},"institutions":[],"countries":[],"is_corresponding":false,"raw_author_name":"Fernando Velez","raw_affiliation_strings":[""],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"","institution_ids":[]}]}],"institutions":[],"countries_distinct_count":0,"institutions_distinct_count":0,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":3.3864,"has_fulltext":false,"cited_by_count":25,"citation_normalized_percentile":{"value":0.92307692,"is_in_top_1_percent":false,"is_in_top_10_percent":true},"cited_by_percentile_year":null,"biblio":{"volume":null,"issue":null,"first_page":"257","last_page":"276"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9785000085830688,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10317","display_name":"Advanced Database Systems and Queries","score":0.9785000085830688,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T11106","display_name":"Data Management and Algorithms","score":0.004600000102072954,"subfield":{"id":"https://openalex.org/subfields/1710","display_name":"Information Systems"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10215","display_name":"Semantic Web and Ontologies","score":0.00139999995008111,"subfield":{"id":"https://openalex.org/subfields/1702","display_name":"Artificial Intelligence"},"field":{"id":"https://openalex.org/fields/17","display_name":"Computer Science"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/o2","display_name":"O2","score":0.5720000267028809},{"id":"https://openalex.org/keywords/object-oriented-data-model","display_name":"object-oriented data model","score":0.9350000023841858},{"id":"https://openalex.org/keywords/object-oriented-databases","display_name":"object-oriented databases","score":0.703000009059906},{"id":"https://openalex.org/keywords/database-management-systems","display_name":"database management systems","score":0.38100001215934753}],"concepts":[{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.5484215021133423},{"id":"https://openalex.org/C2781238097","wikidata":"https://www.wikidata.org/wiki/Q175026","display_name":"Object (grammar)","level":2,"score":0.5280821323394775},{"id":"https://openalex.org/C77088390","wikidata":"https://www.wikidata.org/wiki/Q8513","display_name":"Database","level":1,"score":0.3352971076965332},{"id":"https://openalex.org/C154945302","wikidata":"https://www.wikidata.org/wiki/Q11660","display_name":"Artificial intelligence","level":1,"score":0.14122575521469116}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/101620.101635","doi":"https://doi.org/10.1145/101620.101635","is_oa":false,"landing_page_url":"https://doi.org/10.1145/101620.101635","pdf_url":null,"source":{"id":"https://openalex.org/S4306462769","display_name":"ACM eBooks","issn_l":null,"issn":null,"is_oa":false,"is_in_doaj":false,"is_core":false,"listed_in":[],"host_organization":"https://openalex.org/P4310319798","host_organization_name":"Association for Computing Machinery","host_organization_lineage":["https://openalex.org/P4310319798"],"host_organization_lineage_names":["Association for Computing Machinery"],"type":"ebook platform"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Advances in database programming languages","raw_type":"other"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":4,"referenced_works":["https://openalex.org/W77209766","https://openalex.org/W2003453587","https://openalex.org/W2051045896","https://openalex.org/W2089042876"],"related_works":["https://openalex.org/W127390856","https://openalex.org/W7100929400","https://openalex.org/W3023853203","https://openalex.org/W7097959997","https://openalex.org/W2516813841","https://openalex.org/W2396504450","https://openalex.org/W3193267415","https://openalex.org/W7098497084","https://openalex.org/W2566349860","https://openalex.org/W7095444567"],"abstract_inverted_index":null,"counts_by_year":[],"updated_date":"2026-11-12T12:28:57.059296","created_date":"2016-06-24T00:00:00"}