11+ Er Diagram Uml Notation. The usage is like generalization in uml. An er diagram is a means of visualizing how the information a system produces is related.
Unified modelling language (uml) is a modeling language in the field of software engineering which aims to set standard ways to visualize the design of a system. Uml, as an object oriented notation, have nothing to data modeling. It entities are connected using a system of notation called crow's foot notation.
Er diagrams and eer diagrams are helpful tools when designing a database or information system.
11+ Er Diagram Uml Notation. Information engineering style chen style bachman style martin style. To support conditional and looping constructs (among many other things), the uml uses frames. The kind of the frame in this case is activity or act in short form. Extensibility is another important feature which makes uml more powerful and flexible.
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