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ERD Symbols and Meanings

Crow's foot notation is used in Barker's Notation, Structured Systems Analysis and Design Method (SSADM) and information engineering. Crow's foot diagrams represent entities as boxes, and relationships as lines between the boxes. Different shapes at the ends of these lines represent the cardinality of the relationship.
The Chen's ERD notation is still used and is considered to present a more detailed way of representing entities and relationships.
To create an ERD, software engineers mainly turn to dedicated drawing software, which contain the full notation resources for their specific database design - ERD symbols and meanings. CS Odessa has released an all-inclusive Entity-Relationship Diagram (ERD) solution for their powerful drawing program, ConceptDraw PRO.
How to Build an Entity Relationship Diagram (ERD)
How to Build an Entity Relationship Diagram (ERD)

Entity Relationship Diagram Software for Mac

One of the most popular semantic data models is the "entity-relationship" model (often called ER-model). Most of the modern approaches to the database (mainly relational) design are based on the usage of different versions of ER- model. Domain modeling is based on the use of graphic charts, including a small number of heterogeneous components. The simplicity and the presentation clarity of the conceptual basis of these ER-model schemes led to its widespread deployment in the CASE-systems that support automatic design of relational databases.
A relation is a graphically depicted association between two entities. As well as the entity, a relation is a typical concept, all instances of the linked entity types are subject to the rules established by the connecting. Therefore, it is more correct to speak about the relationship type made between types of entities and about the instances of relationship types made between instances of the entity type. In common ER-model this association is a

IDEF1X Standard

Use Case Diagrams technology. IDEF1x standard - for work with relational data bases. IDEF1x standard is meant for constructing of conceptual schemes which represent the structure of data in the context of the concerned system, for example, a commercial organization.

MS Visio Look a Like Diagrams

No need for any special drawing skills to create professional looking diagrams outside of your knowledge base. ConceptDraw PRO takes care of the technical details, allowing you to focus on your job, not the drawing.
ConceptDraw PRO delivers full-functioned alternative to MS Visio. ConceptDraw PRO supports import of Visio files. ConceptDraw PRO supports flowcharting, swimlane, orgchart, project chart, mind map, decision tree, cause and effect, charts and graphs, and many other diagram types.

UML Sequence Diagram Example. SVG Vectored UML Diagrams Tools

This sample was created in ConceptDraw PRO diagramming and vector drawing software using the UML Sequence Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park.
This sample shows the interactions of the customer with the system and is used at the registration on the sites.

Diagramming Software for Design UML Collaboration Diagrams

ConceptDraw helps you to start designing your own UML Collaboration Diagrams with examples and templates.

systems engineering, sysml SYSML

systems engineering, sysml
The SysML solution helps to present diagrams using Systems Modeling Language; a perfect tool for system engineering.

Interaction Overview Diagram

UML Interaction Overview Diagram schematically shows a control flow with nodes and a sequence of activities that can contain interaction or sequence diagrams.

Flowchart Maker

A flowchart maker is a software showing the interaction, sequence or organization. It also known as flowchart maker or ConceptDraw PRO standard supplied with different types of symbol collections: standard symbols, branded set and authored. It used strictly for enhancing scientific or business documents with abstract explanatory pictures.

Business graphic applications show a special knowledge representations and include many features for creating schematic pictures. These graphic tools are known as flowchart maker or flowchart maker software.

integration definition, database design, object-oriented design, idef IDEF Business Process Diagrams

integration definition, database design, object-oriented design, idef
Use the IDEF Business Process Diagrams solution to create effective database designs and object-oriented designs, following the integration definition methodology.