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Dia has special objects to help draw entity-relationship models, Unified Modeling Language (UML) diagrams, flowcharts, network diagrams, and simple electrical circuits. It is also possible to add support for new shapes by writing simple XML files, using a subset of Scalable Vector Graphics (SVG) to draw the shape.
Today, even where ER modeling could be useful, it is uncommon because many use tools that support similar kinds of model, notably class diagrams for OO programming and data models for relational database management systems. Some of these tools can generate code from diagrams and reverse-engineer diagrams from code.
Visual schema/E-R design: the ability to draw entity-relationship diagrams for the database. If missing, the following two features will also be missing; Reverse engineering - the ability to produce an ER diagram from a database, complete with foreign key relationships
Command-line tools, Embeddable in web pages, Eclipse Input or export can be by diagram or Umple textual form, separation of concerns (aspects, traits, mixins), embeds action code in Java and other languages, written in itself, documentation generation, plugin architecture for generators
ArgoUML was originally developed at UC Irvine by Jason E. Robbins, leading to his Ph.D. It was an open source project hosted by Tigris.org and moved in 2019 to GitHub. [3] ...
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A sample entity–relationship diagram. One of the most common types of conceptual schemas is the ER (entity–relationship model) diagrams. Attributes in ER diagrams are usually modeled as an oval with the name of the attribute, linked to the entity or relationship that contains the attribute.
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