{"title":"论关系的范围~CASE\\","authors":"A. Alderson, J. Cartmell, A. Elliott","doi":"10.1109/STEP.1997.615512","DOIUrl":null,"url":null,"abstract":"The concept of relationship scope is a valuable modelling concept with a variety of applications. A particular relationships' scope expresses a constraint upon the entities which may validly be linked together by an instance of the relationship. The scoping of relationships has application to validation of reference relationships, imposing semantics upon the data not otherwise expressible directly by the data model. It can be applied to enrich the concept of composite entities. It can define the constraints necessary to direct relational table generation from entity and object oriented data models. It is one of a range of techniques contributing to our meta-CASE programme of managing the complexity of CASE tools by capturing as many aspects as possible through generic functionality parameterised for specific instances by values captured declaratively.","PeriodicalId":68622,"journal":{"name":"软件","volume":"80 2","pages":"279-287"},"PeriodicalIF":0.0000,"publicationDate":"1997-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1109/STEP.1997.615512","citationCount":"0","resultStr":"{\"title\":\"On the scope of relationships ~CASE\\\\\",\"authors\":\"A. Alderson, J. Cartmell, A. Elliott\",\"doi\":\"10.1109/STEP.1997.615512\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The concept of relationship scope is a valuable modelling concept with a variety of applications. A particular relationships' scope expresses a constraint upon the entities which may validly be linked together by an instance of the relationship. The scoping of relationships has application to validation of reference relationships, imposing semantics upon the data not otherwise expressible directly by the data model. It can be applied to enrich the concept of composite entities. It can define the constraints necessary to direct relational table generation from entity and object oriented data models. It is one of a range of techniques contributing to our meta-CASE programme of managing the complexity of CASE tools by capturing as many aspects as possible through generic functionality parameterised for specific instances by values captured declaratively.\",\"PeriodicalId\":68622,\"journal\":{\"name\":\"软件\",\"volume\":\"80 2\",\"pages\":\"279-287\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"1997-07-14\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://sci-hub-pdf.com/10.1109/STEP.1997.615512\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"软件\",\"FirstCategoryId\":\"1093\",\"ListUrlMain\":\"https://doi.org/10.1109/STEP.1997.615512\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"软件","FirstCategoryId":"1093","ListUrlMain":"https://doi.org/10.1109/STEP.1997.615512","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
The concept of relationship scope is a valuable modelling concept with a variety of applications. A particular relationships' scope expresses a constraint upon the entities which may validly be linked together by an instance of the relationship. The scoping of relationships has application to validation of reference relationships, imposing semantics upon the data not otherwise expressible directly by the data model. It can be applied to enrich the concept of composite entities. It can define the constraints necessary to direct relational table generation from entity and object oriented data models. It is one of a range of techniques contributing to our meta-CASE programme of managing the complexity of CASE tools by capturing as many aspects as possible through generic functionality parameterised for specific instances by values captured declaratively.
期刊介绍：
Computer engineering & Software, founded in 1979, is an academic journal of information technology sponsored by China Association for Science and Technology and China Institute of Electronics and Tianjin Institute of Electronics.
Computer engineering & Software has columns such as expert Forum, Fund project papers, software and database technology research, application technology and research, network and communication, image processing and application, multimedia technology application Artificial intelligence and recognition.
Computer engineering & Software is the source Journal of China Academic Periodical Comprehensive Evaluation Database, the Journal of China Core Periodical (Selection) Database, the source journal of Peking University's Chinese Core Periodical Overview (the first edition in 1992), the Journal of Wanfang data-Digital Periodical Group full-text Collection, the Journal of Chinese Science and Technology Periodical Database (full-text edition), and Wave Journals included in the "Copernicus Index" have been included in the United States "Cambridge Scientific Abstracts", the United States "Uhlig International Journal Guide", the JST Japan Science and Technology Promotion Agency database (2018) and other Chinese and foreign databases.
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