{"id":"https://openalex.org/W2494770211","doi":"https://doi.org/10.1145/2951965.2951968","title":"Classes as Layers","display_name":"Classes as Layers","publication_year":2016,"publication_date":"2016-07-17","ids":{"openalex":"https://openalex.org/W2494770211","doi":"https://doi.org/10.1145/2951965.2951968","mag":"2494770211"},"language":"en","primary_location":{"id":"doi:10.1145/2951965.2951968","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2951965.2951968","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th International Workshop on Context-Oriented Programming","raw_type":"proceedings-article"},"type":"article","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/A5023094588","display_name":"Matthias Springer","orcid":"https://orcid.org/0000-0001-5077-7131"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Matthias Springer","raw_affiliation_strings":["Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"middle","author":{"id":"https://openalex.org/A5079977725","display_name":"Hidehiko Masuhara","orcid":"https://orcid.org/0000-0002-8837-5303"},"institutions":[{"id":"https://openalex.org/I114531698","display_name":"Tokyo Institute of Technology","ror":"https://ror.org/0112mx960","country_code":"JP","type":"education","lineage":["https://openalex.org/I114531698"]}],"countries":["JP"],"is_corresponding":false,"raw_author_name":"Hidehiko Masuhara","raw_affiliation_strings":["Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, Japan"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematical and Computing Sciences, Tokyo Institute of Technology, Japan","institution_ids":["https://openalex.org/I114531698"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5079160871","display_name":"Robert Hirschfeld","orcid":"https://orcid.org/0000-0002-4249-6003"},"institutions":[{"id":"https://openalex.org/I143288331","display_name":"Hasso Plattner Institute","ror":"https://ror.org/058rn5r42","country_code":"DE","type":"facility","lineage":["https://openalex.org/I143288331","https://openalex.org/I176453806"]},{"id":"https://openalex.org/I176453806","display_name":"University of Potsdam","ror":"https://ror.org/03bnmw459","country_code":"DE","type":"education","lineage":["https://openalex.org/I176453806"]},{"id":"https://openalex.org/I886105272","display_name":"Viewpoints Research Institute","ror":"https://ror.org/01amy5q57","country_code":"US","type":"nonprofit","lineage":["https://openalex.org/I886105272"]}],"countries":["DE","US"],"is_corresponding":false,"raw_author_name":"Robert Hirschfeld","raw_affiliation_strings":["Hasso Plattner Institute, University of Potsdam, Germany and Communications Design Group (CDG), SAP Labs, USA; Viewpoints Research Institute, USA","Viewpoints Research Institute, USA"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Hasso Plattner Institute, University of Potsdam, Germany and Communications Design Group (CDG), SAP Labs, USA; Viewpoints Research Institute, USA","institution_ids":["https://openalex.org/I886105272","https://openalex.org/I143288331","https://openalex.org/I176453806"]},{"raw_affiliation_string":"Viewpoints Research Institute, USA","institution_ids":["https://openalex.org/I886105272"]}]}],"institutions":[],"countries_distinct_count":3,"institutions_distinct_count":3,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":null,"apc_paid":null,"fwci":0.0,"has_fulltext":false,"cited_by_count":3,"citation_normalized_percentile":{"value":0.04554396,"is_in_top_1_percent":false,"is_in_top_10_percent":false},"cited_by_percentile_year":{"min":89,"max":94},"biblio":{"volume":null,"issue":null,"first_page":"21","last_page":"26"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10639","display_name":"Advanced Software Engineering Methodologies","score":0.9990000128746033,"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"}},"topics":[{"id":"https://openalex.org/T10639","display_name":"Advanced Software Engineering Methodologies","score":0.9990000128746033,"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"}},{"id":"https://openalex.org/T11450","display_name":"Model-Driven Software Engineering Techniques","score":0.9954000115394592,"subfield":{"id":"https://openalex.org/subfields/1712","display_name":"Software"},"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/T12720","display_name":"Multimedia Communication and Technology","score":0.9891999959945679,"subfield":{"id":"https://openalex.org/subfields/3312","display_name":"Sociology and Political Science"},"field":{"id":"https://openalex.org/fields/33","display_name":"Social Sciences"},"domain":{"id":"https://openalex.org/domains/2","display_name":"Social Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/implementation","display_name":"Implementation","score":0.9265465140342712},{"id":"https://openalex.org/keywords/visitor-pattern","display_name":"Visitor pattern","score":0.8694235682487488},{"id":"https://openalex.org/keywords/computer-science","display_name":"Computer science","score":0.7471070885658264},{"id":"https://openalex.org/keywords/object-oriented-programming","display_name":"Object-oriented programming","score":0.6678526997566223},{"id":"https://openalex.org/keywords/context","display_name":"Context (archaeology)","score":0.6227015852928162},{"id":"https://openalex.org/keywords/programming-language","display_name":"Programming language","score":0.5875745415687561},{"id":"https://openalex.org/keywords/observer","display_name":"Observer (physics)","score":0.4514934718608856},{"id":"https://openalex.org/keywords/software-engineering","display_name":"Software engineering","score":0.44252029061317444},{"id":"https://openalex.org/keywords/archaeology","display_name":"Archaeology","score":0.09901046752929688}],"concepts":[{"id":"https://openalex.org/C26713055","wikidata":"https://www.wikidata.org/wiki/Q245962","display_name":"Implementation","level":2,"score":0.9265465140342712},{"id":"https://openalex.org/C48947383","wikidata":"https://www.wikidata.org/wiki/Q830719","display_name":"Visitor pattern","level":2,"score":0.8694235682487488},{"id":"https://openalex.org/C41008148","wikidata":"https://www.wikidata.org/wiki/Q21198","display_name":"Computer science","level":0,"score":0.7471070885658264},{"id":"https://openalex.org/C73752529","wikidata":"https://www.wikidata.org/wiki/Q79872","display_name":"Object-oriented programming","level":2,"score":0.6678526997566223},{"id":"https://openalex.org/C2779343474","wikidata":"https://www.wikidata.org/wiki/Q3109175","display_name":"Context (archaeology)","level":2,"score":0.6227015852928162},{"id":"https://openalex.org/C199360897","wikidata":"https://www.wikidata.org/wiki/Q9143","display_name":"Programming language","level":1,"score":0.5875745415687561},{"id":"https://openalex.org/C2780704645","wikidata":"https://www.wikidata.org/wiki/Q9251458","display_name":"Observer (physics)","level":2,"score":0.4514934718608856},{"id":"https://openalex.org/C115903868","wikidata":"https://www.wikidata.org/wiki/Q80993","display_name":"Software engineering","level":1,"score":0.44252029061317444},{"id":"https://openalex.org/C166957645","wikidata":"https://www.wikidata.org/wiki/Q23498","display_name":"Archaeology","level":1,"score":0.09901046752929688},{"id":"https://openalex.org/C95457728","wikidata":"https://www.wikidata.org/wiki/Q309","display_name":"History","level":0,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1145/2951965.2951968","is_oa":false,"landing_page_url":"https://doi.org/10.1145/2951965.2951968","pdf_url":null,"source":null,"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Proceedings of the 8th International Workshop on Context-Oriented Programming","raw_type":"proceedings-article"}],"best_oa_location":null,"sustainable_development_goals":[],"awards":[],"funders":[],"has_content":{"grobid_xml":false,"pdf":false},"content_urls":null,"referenced_works_count":8,"referenced_works":["https://openalex.org/W1649645444","https://openalex.org/W1978875190","https://openalex.org/W2097964082","https://openalex.org/W2098931293","https://openalex.org/W2150275961","https://openalex.org/W2296463440","https://openalex.org/W2301974412","https://openalex.org/W4236756026"],"related_works":["https://openalex.org/W2389484663","https://openalex.org/W100279264","https://openalex.org/W3025803919","https://openalex.org/W2390271730","https://openalex.org/W2494770211","https://openalex.org/W1578809901","https://openalex.org/W2611825707","https://openalex.org/W1580516753","https://openalex.org/W2552002334","https://openalex.org/W1547394117"],"abstract_inverted_index":{"This":[0],"paper":[1],"analyzes":[2],"and":[3,17,26,38],"presents":[4],"alternative":[5],"implementations":[6,20],"of":[7,11,29,32],"three":[8],"well-known":[9],"Gang":[10],"Four":[12],"design":[13],"patterns:":[14],"Decorator,":[15],"Observer,":[16],"Visitor.":[18],"These":[19],"are":[21],"more":[22],"than":[23],"mere":[24],"refactorings":[25],"take":[27],"advantage":[28],"a":[30,44],"variant":[31],"context-oriented":[33],"programming":[34],"that":[35],"unifies":[36],"classes":[37],"layers":[39],"to":[40],"overcome":[41],"shortcomings":[42],"in":[43],"conventional,":[45],"object-oriented":[46],"implementation.":[47]},"counts_by_year":[{"year":2023,"cited_by_count":1},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1}],"updated_date":"2026-06-11T09:08:48.828518","created_date":"2016-08-23T00:00:00"}