{"title":"实现集群别名保护","authors":"John Michael Potter, J. Noble","doi":"10.1109/ACSC.2000.824402","DOIUrl":null,"url":null,"abstract":"Composition and aggregation are widely used in UML analysis and design models to represent part-whole structures. Neither kind of association places any restriction on how the paths may be used from outside the whole object; this can lead to a number of problems if a part object is aliased from outside. Conglomeration realises a stronger form of encapsulation than does composition. Parts of conglomerate objects are protected from external access. By imposing instance-level consistency conditions on part-whole relationships, conglomeration can make UML models easier to build, understand, and implement correctly.","PeriodicalId":304540,"journal":{"name":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","volume":"7 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2000-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":"{\"title\":\"Conglomeration-realising alias protection\",\"authors\":\"John Michael Potter, J. Noble\",\"doi\":\"10.1109/ACSC.2000.824402\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Composition and aggregation are widely used in UML analysis and design models to represent part-whole structures. Neither kind of association places any restriction on how the paths may be used from outside the whole object; this can lead to a number of problems if a part object is aliased from outside. Conglomeration realises a stronger form of encapsulation than does composition. Parts of conglomerate objects are protected from external access. By imposing instance-level consistency conditions on part-whole relationships, conglomeration can make UML models easier to build, understand, and implement correctly.\",\"PeriodicalId\":304540,\"journal\":{\"name\":\"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)\",\"volume\":\"7 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2000-01-31\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"1\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ACSC.2000.824402\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Proceedings 23rd Australasian Computer Science Conference. ACSC 2000 (Cat. No.PR00518)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ACSC.2000.824402","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Composition and aggregation are widely used in UML analysis and design models to represent part-whole structures. Neither kind of association places any restriction on how the paths may be used from outside the whole object; this can lead to a number of problems if a part object is aliased from outside. Conglomeration realises a stronger form of encapsulation than does composition. Parts of conglomerate objects are protected from external access. By imposing instance-level consistency conditions on part-whole relationships, conglomeration can make UML models easier to build, understand, and implement correctly.
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