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Entity Relationship Diagram - ERD - Software for Design Crows Foot ER Diagrams

ER-model is a data model which lets describe the conceptual schemes in a specific subject area. It can help to highlight the key entities and specify relationships that can be established between these entities. During the database design, it is realized the transformation of ER model into certain database scheme based on the chosen data model (relational, object, network, etc.). There are used two notations for ERDs: Crow's Foot and Chen's. Crow's Foot notation proposed by Gordon Everest represents the entity by rectangle containing its name (name must be unique within this model), and relation - by the line which links two entities involved in relationship. The relationship's plurality is graphically indicated by a "plug" on the end of the link, the optionality - by a circle. Entity-Relationship Diagrams based on Crow's Foot notation can be easily drawn using the ConceptDraw DIAGRAM. Extended with Entity-Relationship Diagram (ERD) solution, it is the best ERD diagrams software with powerful tools and ready design elements for Crow's Foot and Chen notations.
How to Build an Entity Relationship Diagram (ERD)
How to Build an Entity Relationship Diagram (ERD)

seating chart for a classroom, classroom seating chart template, school floor plans, high school floor plans, classroom seating charts, classroom seating chart, classroom seating chart maker, classroom layout? School and Training Plans

seating chart for a classroom, classroom seating chart template, school floor plans, high school floor plans, classroom seating charts, classroom seating chart, classroom seating chart maker, classroom layout?
School and Training Plans solution enhances ConceptDraw DIAGRAM functionality with extensive drawing tools, numerous samples and examples, templates and libraries of classroom design elements for quick and professional drawing the School and Training plans, School Floor plans, Classroom Layout, Classroom Seating chart, Lecture Room plans of any complexity. Each offered classroom seating chart template is a real help for builders, designers, engineers, constructors, as well as teaching personnel and other teaching-related people in drawing Classroom Seating charts and Training Room layouts with ConceptDraw DIAGRAM classroom seating chart maker.

winter sports Winter Sports

winter sports
The Winter Sports solution from Sport area of ConceptDraw Solution Park contains winter sports illustration examples, templates and vector clipart libraries.

business processes, business management, plan projects Business Package for Management

business processes, business management, plan projects
Package intended for professional who designing and documenting business processes, preparing business reports, plan projects and manage projects, manage organizational changes, prepare operational instructions, supervising specific department of an organization, workout customer service processes and prepare trainings for customer service personal, carry out a variety of duties to organize business workflow.

Cisco Network Design. Cisco icons, shapes, stencils, symbols and design elements

Cisco is the largest company, which specializes in the field of high technologies, develops and sells network equipment mainly for the large organizations and telecommunication companies. Cisco produces wide variety of devices and equipment, such as routers, switches, gateways, servers, network security devices (firewalls, VPN, IDs, etc.), ATM switches, cable modems and DSL equipment, access points Wi-Fi, products for IP telephony, etc. The first commercially successful multi-protocol router, which enabled for previously incompatible computers to communicate between themselves, is also developed by Cisco company. Cisco is a generally accepted standard, which uses globally recognized Cisco icons for all produced Cisco equipment. ConceptDraw DIAGRAM software extended with Cisco Network Diagrams solution from Computer and Network area contains a lot of predesigned Cisco network design elements for professional drawing Cisco network diagrams, visualization computer network topologies, equipment connections and arrangement.

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)

draw divided bar diagram, draw divided bar chart, draw divided bar graph Divided Bar Diagrams

draw divided bar diagram, draw divided bar chart, draw divided bar graph
The Divided Bar Diagrams Solution extends the capabilities of ConceptDraw DIAGRAM with templates, samples, and a library of vector stencils for drawing high impact and professional Divided Bar Diagrams and Graphs, Bar Diagram Math, and Stacked Graph.

healthy foods, healthy diet, healthy food recipes Health Food

healthy foods, healthy diet, healthy food recipes
The Health Food solution contains the set of professionally designed samples and large collection of vector graphic libraries of healthy foods symbols of fruits, vegetables, herbs, nuts, beans, seafood, meat, dairy foods, drinks, which give powerful possi