AFM341 Chapter Notes - Chapter 3: Foreign Key, Unique Key, Business Process
16 Dec 2018
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Document Summary
Structure models: describe the data and information structures inherent in a business process or processes. The primary purpose of these models is to create a blueprint for the development of a relational database to support the collection, aggregation, and communication of process information. Data models: are used to represent the conceptual contents of databases to communicate with the users of those databases. Class diagrams: a type of diagram within uml and are similar in man y ways to entity- relationship diagrams. Class: any separately identifiable collection of things (objects) about which the organization wants to collect and store information. Multiplicities: describe the minimum and maximum number of times instances in one class can be associated with instances in another class. Attributes: data elements that describe the instances in a class. Constraints: limitations on a value, such as minimum and maximum possib le values.
