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

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.

software engineering, data model, data modeling tools, orm Object-Role Modeling (ORM) Diagrams

software engineering, data model, data modeling tools, orm
Object-role Modeling (ORM) Diagram solution with powerful vector diagramming and data modeling tools, large quantity of specially developed samples and examples, and rich variety of vector objects corresponding to common ORM notation, ideally suits for developing the comprehensive, clear and visual Object-role Modeling (ORM) diagrams and schematics, understandable for all interested people from the different fields and business directions, for designing the ORM models, and demonstrating advantages from the use of ORM and its notation. It is intended for software developers and computer engineers, specialists in a field of Object-oriented programming (OOP), database architects, web-application constructors and developers, etc.

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.

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.

Business Process Workflow Diagram

Business Process Workflow Diagram is a professional visual tool that is widely applied for business development, business analysis, business process optimization and documenting business processes. Business Process Workflow Diagram lets depict in details the steps of business processes and flow of tasks between them, the execution of business processes, transfer of data and documents. The workflows on the Business Process Workflow Diagram are represented using the set of common symbols which let easy illustrate business processes and process flows, depict the start, all major steps and end of the process, what data are used by the process, how the data flow through the business areas within scope of our project, how the tasks are executed and by who, and how workers interact with each other.
How to Draw Business Process Diagrams
How to Draw Business Process Diagrams

Use Case Diagrams technology with ConceptDraw DIAGRAM

Use case diagrams are used at the development of software and systems for definition of functional system requirements or system of systems. Use case diagram presents the consecution of object’s actions (user’s or system’s) which are executed for reaching the definite result.

Education Information

The Education Information is multifariuos and can be often represented in various forms. Еру the most successful ways of presentation the information and data are various illustrations, diagrams and colorful education infographics which you can easily make in ConceptDraw DIAGRAM software extended with Education Infographics Solution from the Business Infographics Area.

Healthcare, Health, biomedicine, Anatomy, Pharmacy, Medical Health Package

Healthcare, Health, biomedicine, Anatomy, Pharmacy, Medical
Health Package is a set of multifaceted solutions intended for visualization and illustration in a field of medicine and health, for drawing colorful, interesting and precise illustrations and infographics that will be used successfully in medical documents, articles, special magazines, posters, billboards, websites, presentations, collages. Having these solutions available, it will not be difficult to illustrate the medical editions, to convey the information in a full and interesting form, to teach students with use effective visual methods, to describe the medical facts, to tell about innovations in a field of medicine, health and correct nutrition, to explain the causes and consequences of different diseases, as well as the measures of their prevention and treatment.

diagram, workflow, flowchart, orgchart, marketing, management, infographics Business Diagrams Package

diagram, workflow, flowchart, orgchart, marketing, management, infographics
Business Diagrams Package is a large set of comprehensive graphical solutions from the ConceptDraw Solution Park, which are powerful in solving the business, marketing and quality tasks in completely different fields, such as finance, education, health food and cooking, HR, and many others. The tools of this package's solutions are a powerful assistant in drawing all diversity of Financial and Marketing infographics, Business process workflow diagrams, Organizational charts, Education infographics, Quality diagrams, Health food diagrams, HR flowcharts, as well as different graphics and charts, which depict the values of key business indicators, their dependencies, give the full understanding of a situation within a company and on the market.