Entity Relationship Diagram Symbols

The semantic modeling method nowadays is successfully applied in database structure design. It is effective method of modeling the data structures, which is based on the meaning of these data. As a tool of semantic modeling, there are used different types of Entity-Relationship Diagrams. Entity Relationship Diagram (ERD) is applied to visually and clearly represent a structure of a business database. The main components of ERDs are: entity, relation and attributes. An entity is a class of similar objects in the model, each entity is depicted in the form of rectangle and has the name expressed by a noun. Relation is shown in the form of non-directional line that connects two entities. There are several notation styles used for ERDs: information engineering style, Chen style, Bachman style, Martin Style. The Entity Relationship Diagram symbols used for professional ERD drawing are predesigned by professionals and collected in the libraries of the Entity-Relationship Diagram (ERD) solution for ConceptDraw DIAGRAM software.

ERD Symbols and Meanings

Entity Relationship Diagram (ERD) is a popular software engineering tool for database modeling and illustration the logical structure of databases, which uses one of two notations - Chen's or Crow’s Foot. Crow's foot notation is effective when used in software engineering, information engineering, structured systems analysis and design. Each of these notations applies its own set of ERD symbols. Crow's foot diagrams use boxes to represent entities and lines between these boxes to show relationships. Varied shapes at the ends of lines depict the cardinality of a given relationship. Chen's ERD notation is more detailed way to represent entities and relationships. ConceptDraw DIAGRAM application enhanced with all-inclusive Entity-Relationship Diagram (ERD) solution allows design professional ER diagrams with Chen's or Crow’s Foot notation on your choice. It contains the full set of ready-to-use standardized ERD symbols and meanings helpful for quickly drawing, collection of predesigned ERD samples, examples and templates. ConceptDraw Pro is a great alternative to Visio for Mac users as it offers more features and can easily handle the most demanding professional needs.

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.

ERD Symbols and Meanings

Entity Relationship Diagram (ERD) is a popular software engineering tool for database modeling and illustration the logical structure of databases, which uses one of two notations - Chen's or Crow’s Foot. Crow's foot notation is effective when used in software engineering, information engineering, structured systems analysis and design. Each of these notations applies its own set of ERD symbols. Crow's foot diagrams use boxes to represent entities and lines between these boxes to show relationships. Varied shapes at the ends of lines depict the cardinality of a given relationship. Chen's ERD notation is more detailed way to represent entities and relationships. ConceptDraw DIAGRAM application enhanced with all-inclusive Entity-Relationship Diagram (ERD) solution allows design professional ER diagrams with Chen's or Crow’s Foot notation on your choice. It contains the full set of ready-to-use standardized ERD symbols and meanings helpful for quickly drawing, collection of predesigned ERD samples, examples and templates. ConceptDraw Pro is a great alternative to Visio for Mac users as it offers more features and can easily handle the most demanding professional needs.

Anyone Have an ERD Symbols Quick Reference?

ERD drawing becomes easier with predesigned entity relationship symbols, work flow shapes, entity relationship stencils. All variety of ERD symbols you may need for ERDs design is packed into libraries and templates from Entity-Relationship Diagram (ERD) Solution for ConceptDraw DIAGRAM diagramming and vector drawing software. But anyone have an ERD symbols quick reference? Detailed reference information for them is represented at the tables.

Entity Relationship Diagram Software

The world-best Entity Relationship Diagram software suitable for professional ERD drawing is ConceptDraw DIAGRAM software extended with the Entity-Relationship Diagram (ERD) solution. This solution contains all libraries, templates and samples you may need for professional ERD drawing.

JSD - Jackson system development

Jackson System Development (JSD) is a linear method of system development created by Michael A. Jackson and John Cameron in the 1980s. It comprises the whole software life cycle directly or providing a framework for more specialized techniques. When implementing the Jackson System Development method and designing JSD diagrams, you can succesfully use the powerful and helpful tools of ConceptDraw DIAGRAM software extended with Entity-Relationship Diagram (ERD) solution from the Software Development area of ConceptDraw Solution Park.

Design Element: Chen for Entity Relationship Diagram - ERD

Entity-Relationship Diagrams (ERDs) were developed and introduced as a convenient and visual tool for the data modeling, they are the perfect way for easy determining data and also relationships between them. The first standard notation for ERD was proposed by Chen. Chen's notation is very rich on the data modeling tools and standard notation symbols and elements for drawing easy understandable Entity-relationship diagrams, Attribute diagrams, Decomposition charts, which are especially popular for designing relational databases. The entity is the main term, it is a set of instances abstract or real objects with common characteristics or attributes. Any system's object is represented by one uniquely identified entity, relationships describe the links between the entities. ConceptDraw DIAGRAM diagramming software, which includes the Entity-Relationship Diagram (ERD) solution, offers all needed tools for professional drawing ER diagrams. Specially developed vector ERD design elements according to Chen and Crow's Foot notations are indispensible for professional ERDs design.

ER Diagram Tool

Creating of Entity-Relationship Diagrams (ERDs) is a complex process that requires convenient, automated tools. ConceptDraw DIAGRAM diagramming and vector drawing software offers a powerful ER Diagram Tool - the Entity-Relationship Diagram (ERD) Solution from the Software Development Area.

Software for Creating SWOT Analysis Diagrams

SWOT analysis or alternatively SWOT matrix is a simple, but useful tool for auditing an organization and its environment, for analyzing its strengths and weaknesses, opportunities and threats that can appear. A SWOT analysis can be executed for an industry, product, place, or person. It is a first stage of planning which helps the marketing specialists to focus on the key issues. SWOT analysis includes the identification of objectives of the project or business venture, specification of internal and external factors favorable and vice versa unfavorable for achievement the designated goal. ConceptDraw DIAGRAM ector graphics software enhanced with SWOT and TOWS Matrix Diagrams solution from Management area of ConceptDraw Solution Park is a powerful software for creating SWOT analysis diagrams. Ready-to-use templates, samples and examples allow create your own TOWS and SWOT matrices in minutes. The integration between ConceptDraw MINDMAP and ConceptDraw DIAGRAM applications will be also helpful for easier drawing.

Swim Lane Diagrams

Swim Lane Diagrams are the kind of process flow diagrams and effective tool for documenting the business processes required for any business company for its productive work, for easy defining the weak points, reasons of defects, or delays during the process. Swim Lane Diagram is based on the IDEF3 standard and was developed primarily for using in projecting. Its name derives from the use of horizontal or vertical lanes. The blocks that denote the parts of the processes are arranged within definite lanes according to the belonging to responsible worker. So the process of any complexity is visually divided into the parts and represented with indication the responsibility for execution of each part. This significantly facilitates the comprehension of its work. Use the ConceptDraw DIAGRAM software and predesigned vector objects from the Swim Lanes library of Business Process Mapping Solution included to ConceptDraw Solution Park to easy develop Swim Lanes Flowcharts and Diagrams, for modeling and documenting the business processes in a simple and visual graphic form.

MS Visio Look a Like Diagrams

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

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.

Sales Process Flowchart. Flowchart Examples

Sales Process Flowchart is an invaluable tool for business. It gives you opportunity to visualise and better understand the sales process, reveal and also visually highlight issues or bottlenecks, and predict the number of sales. The Flowchart is ideal method to represent in details all steps of the process, tasks and decisions needed to obtain maximum effectiveness and success. The steps are graphically represented by boxes linked with arrows indicating direction of the workflow, decision is shown by diamond. The sales process is closely linked to the company's success and usually includes the following main steps: Product knowledge, Prospecting, Planning the sale (Pre-approach), Approach, Need assessment, Presentation, Meeting objections, Gaining commitment, Follow-up. Create fast and easy your own Flowcharts of sales business processes using the ConceptDraw DIAGRAM ector graphic software extended with Cross-Functional Flowcharts solution from Business Processes area and also Sales Flowcharts solution from Marketing area of ConceptDraw Solution Park.

Integration Definition

Creation of various types of Integration DEFinition (IDEF) diagrams - IDEF0, IDEF1X, IDEF2, IDEF3 and many other is a sufficiently complex process that requires powerful automated tools. ConceptDraw DIAGRAM diagramming and vector drawing software offers you such tool - IDEF Business Process Diagrams solution from the Business Processes area of ConceptDraw Solution Park.

Create Workflow Diagram

In any unclear situation create a workflow diagram. Workflow diagrams help to understand processes, find bottlenecks and fix the process. When you create workflow diagram using ConceptDraw DIAGRAM software you are able to focus on thinking, not drawing, that makes you as effective as possible.

Functional Block Diagram

You need design the Functional Block Diagram and dream to find the useful tools to draw it easier, quickly and effectively? ConceptDraw DIAGRAM offers the Block Diagrams Solution from the "Diagrams" Area which will help you!

SWOT Analysis

The success of the company depends on how successfully it is able to react on different outside influences. When analyzing the external situation, it is necessary to identify the factors most significant on a specified period of time. An interrelated consideration of these factors with the company's possibilities allows to solve effectively appearing problems. One of the most common methods of assessment together internal and external factors influencing the company's development is a SWOT analysis. SWOT analysis (acronym composed of the first letters of the words: strength, weakness, opportunities, threats) is one of the most common and effective types of analysis in marketing and marketing researches. It allows to identify and structure the strengths and weaknesses of an enterprise, as well as potential opportunities and threats of the market, to make conclusion in which direction a given organization needs to develop its business and to formulate the organization's strategy. Use the ConceptDraw MINDMAP software and offered SWOT analysis templates for easy holding SWOT analysis for your company. This Mind Map displays the SWOT analysis for a company and variety of performance measures that influence its work.