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)

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.

Symbol for Pool Table for Floor Plans

Below you can see the symbol for pool table. You can find this symbol in the library of the Floor Plans Solution and use it in your floor plan of the sport complex, home, etc.
ConceptDraw DIAGRAM is a powerful diagramming and vector drawing software for creating the different Floor Plans. It’s very convenient, simple and quick to design the professional looking Floor Plans of any difficulty in ConceptDraw DIAGRAM.

Table Seating Chart Template

The arrangement of tables and seating charts near them have great value in many premises and situations. It is often very convenient to draw a plan before the furniture arrangement. ConceptDraw DIAGRAM software offers the Seating Plans solution from the Building Plans area for fast and easy drawing the table seating chart template and samples.

Electrical Symbols — Lamps, Acoustics, Readouts

Wiring and circuit diagrams use special symbols recognized by everyone who uses the drawings. The symbols on the drawings show how components like resistors, capacitors, inductors, switches, lamps, acoustic devices, measuring devices and other electrical and electronic components are connected together.
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.

Database Flowchart Symbols

Data base diagrams describes inter-related data and tables. It describes roles and relationships, internal and external dependencies, data exchange conventions and structures of knowledge domain.
ConceptDraw Software provides number of data-base chart libraries including major 49 vector symbols. Use these DFD flowchart symbol libraries to design data-base structure and models, use it to design data base process-oriented models, or simple data-oriented models. The are special drawing tools for making data flowcharts, data process diagrams, structured analysis diagrams, and information flow diagrams.

Electrical Symbols — Resistors

A resistor is a passive two-terminal electrical component that implements electrical resistance as a circuit element. Resistors may be used to reduce current flow, and, at the same time, may act to lower voltage levels within circuits. In electronic circuits, resistors are used to limit current flow, to adjust signal levels, bias active elements, and terminate transmission lines among other uses. Fixed resistors have resistances that only change slightly with temperature, time or operating voltage. Variable resistors can be used to adjust circuit elements (such as a volume control or a lamp dimmer), or as sensing devices for heat, light, humidity, force, or chemical activity.

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.

Mechanical Drawing Symbols

Mechanical Engineering solution — 8 libraries are available with 602 commonly used mechanical drawing symbols in Mechanical Engineering Solution, including libraries called Bearings with 59 elements of roller and ball bearings, shafts, gears, hooks, springs, spindles and keys; Dimensioning and Tolerancing with 45 elements; Fluid Power Equipment containing 113 elements of motors, pumps, air compressors, meters, cylinders, actuators and gauges; Fluid Power Valves containing 93 elements of pneumatic and hydraulic valves (directional control valves, flow control valves, pressure control valves) and electrohydraulic and electropneumatic valves; as well as many other sophisticated symbols and templates for your use.

Notation & Symbols for ERD

The ER diagram is constructed from the specific ERD graphic elements. There are used 2 types of ERD notations: Chen and Crow's Foot.
A complete set of work flow shapes, notation & symbols for ERD, entity relationship stencils, included in Entity-Relationship Diagram (ERD) solution for ConceptDraw DIAGRAM software, makes drawing diagrams based on ERD notation as smooth as possible.

Electrical Symbols, Electrical Diagram Symbols

How to create Electrical Diagram? It’s very easy! All you need is a powerful software. It wasn’t so easy to create Electrical Symbols and Electrical Diagram as it is now with electrical diagram symbols offered by the libraries of Electrical Engineering Solution from the Industrial Engineering Area at the ConceptDraw Solution Park.
This solution provides 26 libraries which contain 926 electrical symbols from electrical engineering: Analog and Digital Logic, Composite Assemblies, Delay Elements, Electrical Circuits, Electron Tubes, IGFET, Inductors, Integrated Circuit, Lamps, Acoustics, Readouts, Logic Gate Diagram, MOSFET, Maintenance, Power Sources, Qualifying, Resistors, Rotating Equipment, Semiconductor Diodes, Semiconductors, Stations, Switches and Relays, Terminals and Connectors, Thermo, Transformers and Windings, Transistors, Transmission Paths,VHF UHF SHF.

ERD Symbols and Meanings

The design elements library Tables contains 27 symbols of tables.
Use the vector stencils library Tables to develop house floor plans, home designs, kitchen and dining room design and furniture layout of cafe or restaurant.
"A table is a form of furniture with a flat horizontal upper surface used to support objects of interest, for storage, show, and/ or manipulation. The surface must be held stable; for reasons of simplicity, this is usually done by support from below by either a column, a "base", or at least three columnar "stands". In special situations, table surfaces may be supported from a nearby wall, or suspended from above.
Common design elements include:
top surfaces of various shapes, including rectangular, rounded, or semi-circular;
legs arranged in two or more similar pairs;
several geometries of folding table that can be collapsed into a smaller volume;
heights ranging up and down from the most common 18–30 inches (46–76 cm) range, often reflecting the height of chairs or bar stools used as seating for people making use of a table, as for eating or performing various manipulations of objects resting on a table;
presence or absence of drawers;
expansion of the surface by insertion of leaves or locking hinged drop leaf sections into horizontal position.
Desks are tables specifically intended for information-manipulation tasks, including writing and use of interactive electronics.
Tables of various shapes, heights, and sizes are designed for specific uses:
Dining room tables are designed to be used for formal dining.
Bedside tables, nightstands, or night tables are small tables used in a bedroom. They are often used for convenient placement of a small lamp, alarm clock, glasses, or other personal items.
Gateleg tables have one or two hinged leaves supported by hinged legs.
Coffee tables are low tables designed for use in a living room, in front of a sofa, for convenient placement of drinks, books, or other personal items.
Refectory tables are long tables designed to seat many people for meals.
Drafting tables usually have a top that can be tilted for making a large or technical drawing. They may also have a ruler or similar element integrated.
Workbenches are sturdy tables, often elevated for use with a high stool or while standing, which are used for assembly, repairs, or other precision handwork.
Nested tables are a set of small tables of graduated size that can be stacked together, each fitting within the one immediately larger. They are for occasional use (such as a tea party), hence the stackable design." [Table (furniture). Wikipedia]
The shapes library Tables is provided by the Floor Plans solution from the Building Plans area of ConceptDraw Solution Park.

, square table, table, square table, rounded corners, round table, table, right rectangle table leaf, rectangle table leaf, right oval table leaf, oval table leaf, table leaf, rectangular table, table, rectangular table, rounded corners, oval table, table, left rectangle table leaf, rectangle table leaf, left oval table leaf, oval table leaf, table leaf, glass square table, glass table, glass oval table, glass table, corner table, table, center table leaf, table leaf, boat shape table, table, 90 degree table, 45 degree table,

Used Solutions

Building Plans >

Floor Plans

Chemistry Symbols and Meanings

Chemistry solution offers 5 libraries with large collection of vector chemistry symbols and meanings, chemistry equation symbols, organic chemistry symbols, and chemical clipart: Chemical Elements Library, Chemical Drawings Library, Conformations Library, Laboratory Equipment Library, Periodic Table of Chemical Elements Library.

Organic Chemistry Symbols

ConceptDraw DIAGRAM diagramming and vector drawing software extended with Chemistry solution from the Science and Education area of ConceptDraw Solution Park is effective for drawing various organic chemistry schemes, diagrams, illustrations thanks to the included collection of predesigned organic chemistry symbols.

Electrical Symbols — Inductors

An inductor, also called a coil or reactor, is a passive two-terminal electrical component which resists changes in electric current passing through it. It consists of a conductor such as a wire, usually wound into a coil. Energy is stored in a magnetic field in the coil as long as current flows. When the current flowing through an inductor changes, the time-varying magnetic field induces a voltage in the conductor, according to Faraday’s law of electromagnetic induction.

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.

Electrical Symbols — Power Sources

A voltage source is a two terminal device which can maintain a fixed voltage. An ideal voltage source can maintain the fixed voltage independent of the load resistance or the output current. However, a real-world voltage source cannot supply unlimited current. A voltage source is the dual of a current source. Real-world sources of electrical energy, such as batteries, generators, and power systems, can be modeled for analysis purposes as a combination of an ideal voltage source and additional combinations of impedance elements.

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.

Flowchart design. Flowchart symbols, shapes, stencils and icons

A flowchart is a type of diagram that represents an algorithm, workflow or process, showing the steps as boxes of various kinds - flowchart symbols, and their order by connecting them with arrows.
Mavericks have always desired to stand apart and gorgeous design is the recipe for that. Any business graphic document will be more understandable if will use an expository color scheme for their parts. Flowchart design makes versatile presenting and explaining of the process and gives a fresh view that distinguishes it from black and white flowcharts on a paper. Workflow diagram or process flow diagrams become more understandable to ordinary people when it use minimum symbols and special signs.
The best design can be accomplished by starting from any of the suitable Conceptdraw examples. Pick one of them and begin to input proper text into each Flowchart symbols and shapes. Apply less colors in the document and don't turn into rainbow your diagram, three or four will be enough, also note that business process flowchart may not contain bright color hues. The next clue is to use identical colors for same flowchart shape types.

Business Process Modeling with ConceptDraw "Business Process Diagrams" Solution

Home Electrical Plan

Planning and construction of any building begins from the designing its floor plan and a set of electrical, telecom, piping, ceiling plans, etc. Solutions of Building Plans Area of ConceptDraw Solution Park can effectively help you develop all these plans. Let's design the Home Electrical Plan in ConceptDraw DIAGRAM quick and easy.

Electrical Symbols — Semiconductor

Semiconductors are crystalline or amorphous solids with distinct electrical characteristics. They are of high resistance — higher than typical resistance materials, but still of much lower resistance than insulators. Their resistance decreases as their temperature increases, which is behavior opposite to that of a metal. Finally, their conducting properties may be altered in useful ways by the deliberate, controlled introduction of impurities into the crystal structure, which lowers its resistance but also permits the creation of semiconductor junctions between differently-doped regions of the extrinsic semiconductor crystal. The behavior of charge carriers which include electrons, ions and electron holes at these junctions is the basis of diodes, transistors and all modern electronics.

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.

Electrical Symbols — Terminals and Connectors

An electrical connector, is an electro-mechanical device used to join electrical terminations and create an electrical circuit. Electrical connectors consist of plugs (male-ended) and jacks (female-ended). The connection may be temporary, as for portable equipment, require a tool for assembly and removal, or serve as a permanent electrical joint between two wires or devices.

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.

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.

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