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.

Entity Relationship Diagram Software Engineering

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.

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.

Produce Professional Diagrams More Quickly, Easily and Cost Effectively

ConceptDraw Arrows10 Technology - This is more than enough versatility to produce professional diagrams more quickly. Professional diagramming software for mac helps you create variety diagrams, graphics, charts, live dashboards and plenty of graphics and pictures for your business and study.

How To Create Restaurant Floor Plan in Minutes

Developing Floor Plans, Design Drawings, Plans of Furniture Placement for restaurants and cafes is one of the most responsible and important steps at their construction and designing. Selection of favorable design, the right style of furniture and decors largely determine the success and atmosphere of the institution. The restaurant floor planner ConceptDraw DIAGRAM is a perfect choice for architects and designers. Enhanced with Cafe and Restaurant Floor Plans solution it offers a lot of extensive vector symbol libraries and building plan elements for drawing Restaurant floor plans, Restaurant layouts, Restaurant furniture layouts, Cafe floor plans, Bar area floor plan, Fast food restaurant plan, etc. With ConceptDraw DIAGRAM you don't need to be an artist to create great-looking restaurant floor plan drawings in minutes, all needed drawing tools are delivered by Building Plans area solutions. Construct your own general plan of restaurant's premises, choose the furniture for your taste from the Cafe and Restaurant Floor Plans solution libraries and arrange it on the plan as you desire fast and easy. ConceptDraw DIAGRAM has many of the features found in Visio for Mac such as Drawing, Connection, Shape and Editing Tools.

Software development with ConceptDraw DIAGRAM

Modern software development requires creation of large amount of graphic documentation, these are the diagrams describing the work of applications in various notations and cuts, also GUI design and documentation on project management. ConceptDraw DIAGRAM technical and business graphics application possesses powerful tools for software development and designing technical documentation for object-oriented projects. Solutions included to the Software Development area of ConceptDraw Solution Park provide the specialists with possibility easily and quickly create graphic documentation. They deliver effective help in drawing thanks to the included package of templates, samples, examples, and libraries with numerous ready-to-use vector objects that allow easily design class hierarchies, object hierarchies, visual object-oriented designs, flowcharts, GUI designs, database designs, visualize the data with use of the most popular notations, including the UML and Booch notations, easy manage the development projects, automate projection and development.

Draw Fishbone Diagram on MAC Software

The problem solving and decision-making processes are closely linked and crucial for the business and life. There are many tools and techniques for facilitating and improvement these processes, and also enhancement the quality of accepted decisions. One of them is Fisbone Diagram or Cause and Effect diagram. For its construction, you need first define the problem which you need to solve (existing or potential), write it into rectangular and draw to it a horizontal line - a “fish spine”. Then define general types of possible causes like Persons, Materials, Methods, Machinery, Measurements or Environment, and attach them to “spine”. Start brainstorming the possible reasons of failure and connect them to the branches. Professional diagramming ConceptDraw DIAGRAM MAC OSX software offers the Fishbone Diagrams solution which contains templates, samples, and ready Fishbone design objects. Use of them lets effectively identify the possible causes for an effect, realize successfully cause and effect analysis, and instantly draw Fishbone diagram on Mac software.

Interface Design

Website wireframes are convenient and widely used by developers, visual designers, business analysts, and many other people related with projection, development and promotion websites. Usually website wireframes look lacking of brilliance, but they effectively reflect website functionality, content and visually represent its skeletal framework. ConceptDraw DIAGRAM software offers a unique Website Wireframe solution from the Software Development area with all needed tools for fast and easy drawing professional looking website wireframe with attractive interface design.

What is SWOT Analysis in Marketing

What is SWOT analysis in marketing? SWOT analysis gives for analysts, marketing specialists and other professionals the perfect ability to identify the positives and negatives in an organization, as well as in the external environment. The SWOT and TOWS methods were developed for business and industry, they involve the specifying of a project's objective and identifying internal and external causes for accomplishing the project goals. A full awareness about the situation within and around your business can help effectively with both strategic planning and decision-making. ConceptDraw DIAGRAM and ConceptDraw MINDMAP software allow professionals to make the situation analysis, to develop strategies and plans for achievement defined objectives, to suppose the possible scenarios of further activity, to see the whole situation at a glance, to create well-designed SWOT and TOWS matrices in minutes. The SWOT and TOWS Matrix Diagrams solution from ConceptDraw Solution Park includes the SWOT matrix samples and templates that allow users quickly create their own SWOT and TOWS diagrams.

Wireframe Tools

A wireframe is a scheme of a future web page. Wireframe illustrates the web page structure, location and size of the main elements, as well as their interaction with the user. With such scheme designer defines the functionality of the page, not its appearance.