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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 DIAGRAM.
How to Build an Entity Relationship Diagram (ERD)
How to Build an Entity Relationship Diagram (ERD)

Basic Flowchart Symbols and Meaning

Flowchart Symbols and Meaning - Provides a visual representation of basic flowchart symbols and their proposed use in professional workflow diagram, standard process flow diagram and communicating the structure of a well-developed web site, as well as their correlation in developing on-line instructional projects. See flowchart's symbols by specifics of process flow diagram symbols and workflow diagram symbols.
How to Build a Flowchart
How to Build a Flowchart

Mathematics Symbols

ConceptDraw DIAGRAM extended with Mathematics solution from the Science and Education area is a powerful diagramming and vector drawing software that offers all needed tools for mathematical diagrams designing.
Mathematics solution provides 3 libraries with predesigned vector mathematics symbols and figures:
Solid Geometry Library, Plane Geometry Library and Trigonometric Functions Library.

Scientific Symbols Chart

ConceptDraw DIAGRAM is the beautiful design software that provides many vector stencils, examples and templates for drawing different types of illustrations and diagrams.


Mathematics Solution from the Science and Education area of ConceptDraw Solution Park includes a few shape libraries of plane, solid geometric figures, trigonometrical functions and greek letters to help you create different professional looking mathematic illustrations for science and education.

Entity Relationship Diagram Symbols

Creating an entity-relationship (ER) model is to visually represent the structure of a business database, where data equates to entities (or objects) that are linked by defined relationships expressing dependencies and requirements. By nature it is an abstract visualization, the first step in the design process towards creating a logical and functional database.
ERD symbols used for professional ERD drawing are collected in libraries from the Entity-Relationship Diagram (ERD) solution for ConceptDraw DIAGRAM.

Mathematical Diagrams

ConceptDraw DIAGRAM diagramming and vector drawing software extended with Mathematics solution from the Science and Education area is the best for creating: mathematical diagrams, graphics, tape diagrams various mathematical illustrations of any complexity quick and easy.
Mathematics solution provides 3 libraries: Plane Geometry Library, Solid Geometry Library, Trigonometric Functions Library.
The vector stencils library "Vessels" contains 40 symbols of vessels, containers, tanks, drums, and basins.
Use these shapes for drawing process flow diagrams (PFD), materials handling systems, and feed systems in industrial and manufacturing processes.
"A pressure vessel is a closed container designed to hold gases or liquids at a pressure substantially different from the ambient pressure.
The pressure differential is dangerous and fatal accidents have occurred in the history of pressure vessel development and operation. Consequently, pressure vessel design, manufacture, and operation are regulated by engineering authorities backed by legislation. For these reasons, the definition of a pressure vessel varies from country to country, but involves parameters such as maximum safe operating pressure and temperature." [Pressure vessel. Wikipedia]
The example "Design elements - Vessels" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Chemical and Process Engineering solution from the Engineering area of ConceptDraw Solution Park.
Vessel symbols
Vessel symbols, water surface, vessel, drum, pressure vessel, tray, solid, column, tray, dashed, column, tray column, storage sphere, open tank, gas holder, gas cylinder, fluid contacting, vessel, flanged access point, covered tank, floating roof, sump, covered tank, floating roof, covered tank, fixed roof, sump, covered tank, fixed roof, column, closed tank, sump, closed tank, peaked roof, closed tank, clarifier, setting tank, carrying vessel, moveable, carrying vessel, cargo, carrying vessel, branch fitting, barrel, bag, autoclave, propeller agitator, autoclave, helical agitator, autoclave, anchor agitator, access point,

mathematical diagrams, mathematical symbols, tape diagrams Mathematics

mathematical diagrams, mathematical symbols, tape diagrams
Mathematics solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils for drawing the mathematical illustrations, diagrams and charts.

Electrical Symbols — Switches and Relays

In electrical engineering, a switch is an electrical component that can break an electrical circuit, interrupting the current or diverting it from one conductor to another. The mechanism of a switch may be operated directly by a human operator to control a circuit (for example, a light switch or a keyboard button), may be operated by a moving object such as a door-operated switch, or may be operated by some sensing element for pressure, temperature or flow. A relay is a switch that is operated by electricity. Switches are made to handle a wide range of voltages and currents; very large switches may be used to isolate high-voltage circuits in electrical substations.

26 libraries of the Electrical Engineering Solution of ConceptDraw DIAGRAM make your electrical diagramming simple, efficient, and effective. You can simply and quickly drop the ready-to-use objects from libraries into your document to create the electrical diagram.

Physics Symbols

ConceptDraw DIAGRAM diagramming and vector drawing software extended with Physics solution from the Science and Education area is a powerful software for creating various physics diagrams.
Physics solution provides all tools that you can need for physics diagrams designing. It includes 3 libraries with predesigned vector physics symbols: Optics Library, Mechanics Library and Nuclear Physics Library.