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v5
Introduction
User Guide
Introduction
Basic Concepts
Managing Project
Managing Diagrams
Diagram Editor
Editing Elements
Formatting Elements
Annotation Elements
Managing Extensions
User Interface
CLI (Command Line Interface)
Validation Rules
Keyboard Shortcuts
TouchBar (MacBook)
Customization
Working with UML Diagrams
Class Diagram
Package Diagram
Composite Structure Diagram
Object Diagram
Component Diagram
Deployment Diagram
Use Case Diagram
Sequence Diagram
Communication Diagram
Timing Diagram
Interaction Overview Diagram
Statechart Diagram
Activity Diagram
Information Flow Diagram
Profile Diagram
Working with SysML Diagrams
Requirement Diagram
Block Definition Diagram
Internal Block Diagram
Parametric Diagram
Working with Additional Diagrams
Entity-Relationship Diagram
Flowchart Diagram
Data Flow Diagram
Developing Extensions
Getting Started
Commands
Menus
Keymaps
Toolbox
Accessing Elements
Creating, Deleting and Modifying Elements
Working with Selections
Defining Preferences
Using Dialogs
Registering to Extension Registry
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Entity-Relationship Diagram
Entity-Relationship Diagram

Create Entity-Relationship Diagram

To create a Entity-Relationship Diagram:
  1. 1.
    Select first an element where a new Entity-Relationship Diagram to be contained as a child.
  2. 2.
    Select Model | Add Diagram | ER Diagram in Menu Bar or select Add Diagram | ER Diagram in Context Menu.

Data Model

To create a Data Model (model element only) by Menu:
  1. 1.
    Select an Element where a new Data Model to be contained.
  2. 2.
    Select Model | Add | Data Model in Menu Bar or Add | Data Model in Context Menu.

Entity

To create an Entity:
  1. 1.
    Select Entity in Toolbox.
  2. 2.
    Drag on the diagram as the size of Entity.
To create a Entity (model element only) by Menu:
  1. 1.
    Select a Data Model where a new Entity to be contained.
  2. 2.
    Select Model | Add | Entity in Menu Bar or Add | Entity in Context Menu.
You can use QuickEdit for Entity by double-click or press Enter on a selected Entity.
  • Name : Enter name.
  • Add Note : Add a linked note.
  • Add Column (Ctrl+Enter) : Add a column.
  • Add One to One : Add an one-to-one relationship with an entity.
  • Add One to Many : Add an one-to-many relationship with an entity.
  • Add Many to Many : Add an many-to-many relationship with an entity.
To suppress Columns, see Suppress Columns.

Column

To add a Column:
  1. 1.
    Select an Entity.
  2. 2.
    Select Model | Add | Column in Menu Bar or Add | Column in Context Menu.
You can use QuickEdit for Column by double-click or press Enter on a selected Column.
  • Column Expression : Edit column expression.
    Syntax of Column Expression
    1
    column ::= name [ ':' type ] [ '(' length ')' ]
    2
    name ::= (identifier)
    3
    type ::= (identifier)
    4
    length ::= (string)
    Copied!
  • Primary Key : Check whether the column is primary key or not.
  • Add (Ctrl+Enter) : Add one more column in the below.
  • Delete (Ctrl+Delete) : Delete the column
  • Move Up (Ctrl+Up) : Move the column up.
  • Move Down (Ctrl+Down) : Move the column down.

Relationship

To create a Relationship:
  1. 1.
    Select One-to-One Relationship, One-to-Many Relationship or Many-to-Many Relationship in Toolbox.
  2. 2.
    Drag from an entity and drop on another entity.
You can use QuickEdit for Relationship by double-click or press Enter on a selected Relationship.
  • Name : Enter name.
  • Identifying : Check whether the relationship is identifying or not.
  • Add Note : Add a linked note.
You can also use QuickEdit for Relationship End by double-click at the end side of a Relationship.
  • Name : Enter name.
  • Cardinality : Select cardinality of the selected relationship end.
Working with SysML Diagrams - Previous
Parametric Diagram
Next - Working with Additional Diagrams
Flowchart Diagram
Last modified 4mo ago
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Contents
Create Entity-Relationship Diagram
Data Model
Entity
Column
Relationship