The Object-Oriented Entity-Relationship Model (OOERM)

作     者：Gorman, Kevin Choobineh, Joobin 

作者机构：Department of Management Information Systeims and Operations Management University of North Carolina Charlotte United States Department of Business Analysis and Research College of Business Administration Texas A and M University 

出 版 物：《Journal of Management Information Systems》 (J Manage Inf Syst)

年 卷 期：1990年第6卷第4期

页      面：41-65页

学科分类：1205[管理学-图书情报与档案管理] 12[管理学] 120202[管理学-企业管理（含：财务管理、市场营销、人力资源管理）] 0202[经济学-应用经济学] 02[经济学] 1202[管理学-工商管理] 1201[管理学-管理科学与工程(可授管理学、工学学位)] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：Entity-relationship model Object-oriented programming paradigm Structure and dynamic modeling 

摘      要：The Object-Oriented Entity-Relationship Model (OOERM) and its associated diagramming technique (OOERD) are presented as a natural extension to the ER approach for modeling the dynamics of entity classes. In addition to modeling static properties, OOERM incorporates concepts from the object-oriented programming (OOP) paradigm to model operational properties of entities. Relationships among entities are used in message passing to allow an entity to access the attributes and operations of other related entities. An OOERD is a graphical abstraction of an underlying OOERM scheme description that is used to depict the dynamics of message passing among entities. The synergy between OOP and ER concepts is also discussed. The syntax and semantics of the OOERM language are informally presented, along with the graphic notations and icons of the OOERD. Structural and operational modeling in OOERM is illustrated through examples. © 1991, M. E Shaipe, Inc.