关系的消散：忠诚-关系模型的含义
Dissipating with Relations: Implication for the Entity-Relationship Model
摘要：
当概念建模缺乏本体的清晰性和严格的定义时，就会出现困难，在关系构造中尤其如此。有证据表明，在传达应用程序域的意义形式时，关系的使用通常是有问题的。关于这一主题的研究很重要，因为关系是许多方法的核心，也是从业人员常用的方法。在本文中，我们研究了概念建模的背景下的关系或关系的概念。具体来说，我们专注于实体关系（ER）模型中使用的关系的概念。ER模型是通过一种新的形式的概念建模称为事物机（TM），追求进一步理解的关系概念的语义进行审查。ER模型由三个基本类别组成（即，实体，关系和属性），而TM是从一个称为事物/机器（thimac）的本体论类别构建的。几个ER图被重新转换为TM图，创造了一个关于概念模型中关系概念状态的有趣含义的分类冲突。重新建模表明，关系结构被消散到TM的事情流和事件年表。
英文摘要：
Difficulties arise when conceptual modeling lacks ontological clarity and rigorous definitions, which is especially the case in the relationship construct. Evidence shows that use of relationships is often problematic when it comes to communicating the form of meaning of an application domain. Research on this topic is important because relationships are central to a number of approaches and commonly used by practitioners. In this paper, we study the notion of relation or relationship in the context of conceptual modeling. Specifically, we focus on the notion of relationship used in the entity-relationship (ER) model. The ER model is scrutinized through a new form of conceptual modeling called the thinging machine (TM) to pursue further understanding of the semantics of the relationship concept. The ER model is composed of three fundamental categories (i.e., entity, relationship and attribute), whereas TM is built from one ontological category called the thing/machine (thimac). Several ER diagrams are re-casted as TM diagrams, creating a categorical collision with interesting implications regarding the status of the conception of relationship in a conceptual model. The re-modeling shows that the relational construct is dissipated into TM flows of things and chronology of events.
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