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.

Example of DFD for Online Store (Data Flow Diagram)

Data Flow Diagram (DFD) is a methodology of graphical structural analysis and information systems design, which describes the sources external in respect to the system, recipients of data, logical functions, data flows and data stores that are accessed. DFDs allow to identify relationships between various system's components and are effectively used in business analysis and information systems analysis. They are useful for system’s high-level details modeling, to show how the input data are transformed to output results via the sequence of functional transformations. For description of DFD diagrams are uses two notations — Yourdon and Gane-Sarson, which differ in syntax. Online Store DFD example illustrates the Data Flow Diagram for online store, the interactions between Customers, Visitors, Sellers, depicts User databases and the flows of Website Information. ConceptDraw DIAGRAM enhanced with Data Flow Diagrams solution lets you to draw clear and simple example of DFD for Online Store using special libraries of predesigned DFD symbols.

UML Use Case Diagram Example. Social Networking Sites Project

UML Diagrams Social Networking Sites Project. This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Use Case Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the Facebook Socio-health system and is used at the projection and creating of the social networking sites.

Wireframe Examples

ConceptDraw DIAGRAM is a powerful diagramming and vector drawing software. Extended with Website Wireframe solution from the Software Development area, ConceptDraw DIAGRAM became the ideal software for prototype and design professional looking websites wireframes. Website Wireframe solution offers at your disposal wide variety of wireframe examples and samples which confirm this.

3D Network Diagram Software

3D diagrams give more visuality, they are more impressive, attractive, interesting, understandable, and look better than general 2D diagrams. ConceptDraw DIAGRAM supplied with Computer Network Diagrams solution from Computer and Networks area of ConceptDraw Solution Park is a powerful vector-based network diagramming software with useful and convenient tools for drawing 2D and 3D Network Diagrams by both professional engineers and designers, and beginners. Including a lot of predesigned 3D network elements and 3D icons of computer and network devices for customizing your Network diagrams, this solution lets to visually communicate computer networks architecture, topology and design, to simplify and accelerate understanding, analysis and representation, and easily design 3D computer communication network architecture, topology, logic and wiring diagrams, 3D LAN and WAN schematics, drawings and maps. Design easily the 3D diagrams of any types and styles, freely combine the 3D objects in any way you desire.

Data Flow Diagram Software

Data Flow Diagrams (DFDs) are successfully used when studying the business processes or systems that involve the transfer of data. They are a visual way to represent the data processing, to model and visualize the flow of data through a computer system and functional requirements for a designed system. They are the good business modeling tool to describe the business events and interactions, the physical systems involving the storage and transfer of data. ConceptDraw DIAGRAM supplied with Data Flow Diagrams solution from Software Development area of ConceptDraw Solution Park is a modern and powerful data flow diagram software. This solution offers large set of predesigned DFD vector objects, grouped to three libraries: Data Flow Diagrams, Gane-Sarson Notation, and Yourdon and Coad Notation. All they and also collection of DFD samples and built-in templates make a good base for ConceptDraw DIAGRAM users, providing them all conditions for easy creation the Data Flow Diagrams and Data Flow Models of any complexity.

UML Diagram of Parking

This sample shows the Use Case Diagram of parking lot control system. On this sample you can see use cases represented as ovals and three actors represented as figures of persons that employ these use cases. Associations between actors and use cases are shown as lines. UML Diagram of Parking - This diagram can be used for understanding the process of working the car parking, at the projection and construction the parking by building companies and for automation the existing parkings.

Amazon Web Services Diagrams diagramming tool for architecture

Amazon Web Services (AWS) offers the reliable and relatively inexpensive cloud computing services. This is the main reason why many large companies prefer to use the Amazon Cloud to storage and operate the data. ConceptDraw DIAGRAM diagramming software enhanced with AWS Architecture Diagrams solution provides the powerful AWS diagramming tools to draw the Amazon architecture diagrams and Amazon Web Services planning diagrams, to develop the Architect infrastructure based on AWS in a few minutes. The AWS Architecture Diagrams solution offers variety of built-in samples and templates for several Amazon Web Services products and resources, a wide range of predesigned and recognizable vector graphic icons used for simple designing the Architecture diagrams. The diagrams created in ConceptDraw DIAGRAM are professional-looking, helpful when designing and implementing the AWS infrastructure based systems, useful to communicate design, deployment and topology, and apposite for using in presentations, whitepapers, datasheets, posters, and other technical materials you like.