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DIAGRAM 14

Venn Diagram

Venn Diagrams are illustrations used in the branch of mathematics known as set theory. They show the mathematical or logical relationship between different groups of things (sets).

A Venn Diagram was introduced by the British philosopher and mathematician John Venn
(1834-1923) in 1881 and visually shows all the possible logical relations between the sets. This diagram can be interpreted as the relationships of sets which may have some (but not all) elements in common.

Venn Diagram - Relationship Marketing

Example 1. Venn Diagram - Relationship Marketing

The combined area of sets in a Venn Diagram is called the union of sets. Sometimes there is a rectangle around the Venn diagram to show the space of all possible elements. This rectangle represents so-called Universal set. A Venn Diagram is usually used to divide up two or more objects to highlight similarities and differences.

Venn Diagrams visualize all the possible logical relations between sets. They are used to illustrate simple set relationships in logic, statistics, mathematics, sociology, philosophy, marketing, etc. Venn Diagrams are also commonly used to visually summarize the status and future viability of a project.

Venn Diagram - Sustainable Development

Example 3. Venn Diagram - Sustainable Development

There are some similar diagram types, based on Venn Diagram:

  • Euler diagrams similar to Venn Diagrams, but they may not describe all the possible relations.
  • Johnston diagrams, which are used to illustrate statements in propositional logic, such as "Neither A nor B is true", and are a visual way of illustrating truth tables.
  • Karnaugh maps or Veitch diagram are another way of visually representing Boolean expressions.
  • Peirce diagrams, devised by Charles Peirce, are extensions to Venn diagrams which include information on existential statements, disjunctive information, probabilities, and relations.

Venn Diagram - Knowledge

Example 3. Venn Diagram - Knowledge

This simple example was created in ConceptDraw DIAGRAM using the Business Diagrams Solution. It shows the use of Venn Diagram to compare two people groups. One circle represents all the information people know about the stock market in Britain, the other circle represents all the information they know about stock market in Germany. Any features the two areas share can be written in the intersection of the circles. The result shows at a glance what the two markets have in common and what features are different.

Use Business Diagrams solution to quick and easy design your own Venn Diagram of any complexity.

The Venn Diagrams designed with ConceptDraw DIAGRAM are vector graphic documents and are available for reviewing, modifying, converting to a variety of formats (image, HTML, PDF file, MS PowerPoint Presentation, Adobe Flash or MS Visio), printing and send via e-mail in one moment.






TEN RELATED HOW TO's:

The Circular Flow Diagram →

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Picture: The Circular Flow Diagram
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Scatter Chart Examples →

The Line Graphs solution from Graphs and Charts area of ConceptDraw Solution Park contains a set of examples, templates and design elements library of scatter charts. Use it to draw scatter graphs using ConceptDraw DIAGRAM diagramming and vector drawing software for illustrating your documents, presentations and websites.Scatter Chart Examples *
Picture: Scatter Chart Examples
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Onion Diagram Process Design →

Onion diagram is a type of circular diagram that consists of the core circle representing the product/solution and concentric circles around it, which dependent on the core and look like the cross sections of onion. ConceptDraw DIAGRAM diagramming and vector drawing software supplied with Stakeholder Onion Diagrams Solution from the Management Area of ConceptDraw Solution Park is an ideal software for effective Onion diagram process design.Onion Diagram Process Design *
Picture: Onion Diagram Process Design
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Onion Diagram Templates →

The Onion Diagram is a type of circular diagram which consists of the core circle and concentric circles that look like the cross sections of onion. The key value of the Onion Diagram is to visually demonstrate the relationships that lead to a successful final product or deliverable. Design of Onion Diagrams and Stakeholder Onions Diagrams is a complex process, but ConceptDraw DIAGRAM diagramming and vector drawing software makes it easier thanks to the Stakeholder Onion Diagrams Solution from the Management Area of ConceptDraw Solution Park, and the set of included libraries and Onion Diagram templates.Onion Diagram Templates *
Picture: Onion Diagram Templates
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Picture: Organizational Structure Total Quality Management
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Entity Relationship Diagram Symbols →

When we start to speak about databases, we must always mention database structure visualization. One of the most common ways to do it is to create an entity relationship diagram, and to put appropriate symbols on it. It is important either for database projecting and for its' future maintenance. Entity Relationship Diagram describes data elements and their relationships within a database. There are a set of special symbols that depict each element of an entity relationship diagram. Entities - represents some stable components such as supplier, employee, invoice, client, etc. Relation symbols show how the entities interact. Attributes define characteristics of the relationships. Attributes can be one-to-one or many-to-many. Physical symbols is used in the physical models. They represent items such as fields, tables, types and keys. ERD physical symbols are the building material for the database. Notation lines are used to illustrate the relationships. The most common method is Crow’s Feet notation. You can use ConceptDraw Entity-Relationship Diagram (ERD) solution to represent a database using the Entity-Relationship model.Entity Relationship Diagram Symbols
Picture: Entity Relationship Diagram Symbols
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ERD Symbols and Meanings →

A database is a data collection, structured into some conceptual model. Two most common approaches of developing data models are UML diagrams and ER-model diagrams. There are several notations of entity-relationship diagram symbols and their meaning is slightly different. Crow’s Foot notation is quite descriptive and easy to understand, meanwhile, the Chen notation is great for conceptual modeling. An entity relationship diagrams look very simple to a flowcharts. The main difference is the symbols provided by specific ERD notations. There are several models applied in entity-relationship diagrams: conceptual, logical and physical. Creating an entity relationship diagram requires using a specific notation. There are five main components of common ERD notations: Entities, Actions, Attributes, Cardinality and Connections. The two of notations most widely used for creating ERD are Chen notation and Crow foot notation. By the way, the Crow foot notation originates from the Chen notation - it is an adapted version of the Chen notation.ERD Symbols and Meanings
Picture: ERD Symbols and Meanings
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Simple Flow Chart →

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Picture: Simple Flow Chart
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Picture: Authority Matrix Diagram Software
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DIAGRAM 14