Entity Relationship Diagram (aka ER Diagram, E-R Diagram, ERD) is a time-tested and widespread software development and software engineering method for data modeling, illustrating the logical structure of databases and system design. For ERDs construction are used three basic elements: entities, attributes, and relationships. Chen's notation for ERD supposes the use of rectangles (boxes) to represent entities and diamonds to depict relationships between first-class objects. This notation is popular when creating conceptual data models of information systems. Another standardized notation for ER diagrams is Crow's foot notation.
ConceptDraw DIAGRAM as a powerful Entity Relationship Diagram software engineering provides the tools of Entity-Relationship Diagram (ERD) solution from Software Development area of ConceptDraw Solution Park for instantly describing databases using ERDs of Crow’s Foot and Chen’s notations. Use the predesigned vector elements for both these notations from 2 libraries included to Entity-Relationship Diagram (ERD) solution.
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.
ConceptDraw DIAGRAM is a world-class diagramming platform that lets you display, communicate, and present dynamically. It′s powerful enough to draw everything from basic flowcharts to complex engineering schematics.
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Stakeholder management is a critical component to the successful delivery of any project, programme or activity.
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SIPOC is a tool that summarizes the inputs and outputs of one or more processes in table form.
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ConceptDraw DIAGRAM diagramming and vector drawing software extended with Marketing Diagrams Solution from the Marketing Area of ConceptDraw Solution Park is the best software for quick and easy creating Marketing Flow Chart of any complexity and design. This charts created to define marketing project stages. In small business project management it sometimes generated by simple marketing project management software. Here is samples which included in Marketing Area of ConceptDraw Solution Park and it can be used as for project planning software as for project management report.
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