Design Element: Crows Foot
for Entity Relationship Diagram - ERD
Entity-relationship Diagram (ERD) is a perfect tool which lets execute the detalization of data warehouse for designed system, as well as documenting the entities of the system and their interactions each other, including the identification of important domain objects (entities), the properties of these objects (attributes) and their relationships to other objects.
Creating an ERD requires choosing a specific set of notations that best serve the specific database being designed. Chen’s original notation had a linguistic approach, where boxes representing entities could be thought of as nouns, and the relationships between them were in verb form, shown on a diagram as a diamond.
Eventually Chen’s style was adapted into the Crow’s Foot notation, where relationships were shown as single labeled lines – this quickly became the popular standard, due to improved readability on diagrams, with a more efficient use of space on the page.
ConceptDraw DIAGRAM software extended with Entity-Relationship Diagram (ERD) solution from Software Development area of ConceptDraw Solution Park allows you to draw ER diagrams for depicting a database using the ERD diagram design element Crow's Foot - Crow′s Foot notation icons.
Example 1. Design Elements — Crow's Foot (Mac OS X, Windows) for Entity Relationship Diagrams
The Entity-Relationship Diagram (ERD) solution offers also a lot of samples of ER Diagrams of Crow's Foot and also Chen's notations, and two templates providing useful quick start. All they are professional looking, stylish and attractive and are proposed for using from ConceptDraw STORE.
Example 2. Entity Relationship Diagrams solution, examples and template
The samples you see on this page were created in ConceptDraw DIAGRAM software using the Entity-Relationship Diagram (ERD) solution and show the ER Diagrams created with Crow's Foot notation. An experienced user spent 10 minutes creating these samples.
Use the Entity-Relationship Diagram (ERD) Solution for ConceptDraw DIAGRAM to create quick and easy your own ERDs using the Crow's Foot and Chen's notations.
All source documents are vector graphic documents. They are available for reviewing, modifying, or converting to a variety of formats (PDF file, MS PowerPoint, MS Visio, and many other graphic formats) from the ConceptDraw STORE. The Entity-Relationship Diagram (ERD) Solution is available for all ConceptDraw DIAGRAM or later users.
EIGHT RELATED HOW TO's:
While designing a conceptual data model, you should use appropriate software. For instance, ConceptDraw DIAGRAM is a user-friendly ER diagram tool that has a lot of samples and templates to facilitate your work. A clear entity-relationship diagram helps to define the relations between system’s components.
Software engineering is the section of a computer science engaged to design, realization, and support of complex software products. An ERD is a data modeling method that is widely applied in the software engineering practice. Commonly it is used for developing a structure of a a relational database. An entity relationship diagram is helpful for structuring and organizing databases that can be modeled using a relational structure. An entity relationship diagram is designed to depicts the interrelationships within the sets of entities which are accumulated in the database. Each entity represents a particular component of a data. Thus, ER diagrams depicts the logical structure of databases. ConceptDraw ER Diagrams solution provides software engineers with the professional tool for making entity-relationship diagrams.
Picture: Entity Relationship Diagram Software Engineering
Human resource management (HRM) is a professional discipline which oversees and manages an organization's human resources, and aspires maximize employee performance for an employer's strategic objectives.
The HR Management Software is an incredibly powerful tool for those who need to analyze or present human resource process flows in a visually effective manner.
Picture: HR Management Software
A flowchart maker is a software showing the interaction, sequence or organization. It also known as flowchart maker or ConceptDraw DIAGRAM standard supplied with different types of symbol collections: standard symbols, branded set and authored. It used strictly for enhancing scientific or business documents with abstract explanatory pictures.
Business graphic applications show a special knowledge representations and include many features for creating schematic pictures. These graphic tools are known as flowchart maker or flowchart maker software.
Picture: Flowchart Maker
ConceptDraw DIAGRAM - workflow software extended with the Workflow Diagram solution provides a complete set of samples, templates and features help you to draw diagrams faster. A workflow software you use for drawing workflow diagrams and business process flow diagrams should provide a wide set of examples allows you get closer with workflow diagrams, learn symbols meaning, find appropriate layout and design, and then start drawing your own workflow diagram masterfully. Workflow diagrams used for orchestrating organizational processes between company departments and humans, so critical process diagrams used to train many people to interact must be clear and professional to convey an idea from a view. Thats a reason we created a lot workflow symbols and workflow icons collected them into special Workflow Diagram solution in ConceptDraw Solution Park.
Picture: Workflow Diagram Examples
Any information system receives data flows from external sources. In order to visualize them there is a list of data flow diagram symbols that describes how the system components cooperate. If you want to create a data flow diagram, ConceptDraw DIAGRAM Solution Park has DFD Library that contains both Yourdon and Gane-Sarson notations.
This figure shows the content of vector libraries, delivered with ConceptDraw solution for data flow diagram (DFD). There are three libraries composed from about 50 vector objects used to make data flow diagrams.
They include a complete set of objects utilized by Yourdon-Coad and Gane-Sarson notations - two primary notations that are apply for data flow diagramming. Also, one can discover additional "Data flow diagram (DFD)" library that provides a data flow diagram elements for designing level 1 and context-level data flow diagrams.
Picture: Data Flow Diagram Symbols. DFD Library
The vector stencils library Crow's Foot Notation from the solution Entity-Relationship Diagrams (ERD) contains specific symbols of the Crow's foot notation such as relationship symbols and entity symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Entity-Relationship Diagrams (ERD) solution is contained in the Software Development area of ConceptDraw Solution Park.
Picture: Martin ERD Diagram
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.
Picture: ER Diagram Tool