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This ERD example was designed on the base of the entity-relationship diagram on the webpage "IS480 Team wiki: 2015T1 WhitePinnacle Documentation" from the Singapore Management University website. [wiki.smu.edu.sg/ is480/ IS480_ Team_ wiki%3A_ 2015T1_ WhitePinnacle_ Documentation]
This is ERD from the documentation of the High School Emergency Medical Responder (HS EMR) information system.
"Emergency medical responders are people who are specially trained to provide out-of-hospital care in medical emergencies. There are many different types of emergency medical responders, each with different levels of training, ranging from first aid and basic life support. Emergency Medical Responders have a very limited scope of practice and have the least amount of comprehensive education, clinical experience or clinical skills of EMS personnel. The Emergency Medical Responder (EMR) is not meant to replace the roles of Emergency Medical Technicians, Emergency Medical Technologists or Paramedics and their wide range of specialities. Emergency Medical Responders typically assist in rural regions providing basic life support where pre-hospital health professionals are not available due to limited resources or infrastructure." [Emergency medical responder. Wikipedia]
The example "Entity-Relationship Diagram" was drawn using ConceptDraw PRO software extended with the Entity-Relationship Diagram (ERD) solution from the Software Development area of ConceptDraw Solution Park.
ERD
ERD, weak entity, entity,
Used Solutions

Data Flow Diagrams

Data Flow Diagrams *
ConceptDraw DIAGRAM software enables you to quickly create data flow diagrams that include data storage, external entities, functional transforms, data flows, and control transforms and signals.

SDL Diagram

SDL Diagram *
Specification and Description Language (SDL) is used for creating the object-oriented diagrams, visualizing the processes of the state machines for the systems of communication, telecommunication, automotive, aviation and medical industries. SDL is a specification language for creating specifications, descriptions of the behavior, data, and inheritance for real-time systems.
This sample shows the SDL Diagram of the process game.

data flow diagram, DFD templates Data Flow Diagrams (DFD)

data flow diagram, DFD templates
Data Flow Diagrams solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils for drawing the data flow diagrams (DFD).

Block Diagram Software

Block Diagram Software *
The popularity of Block Diagrams grows day by day. The existence of powerful software for their design is an excellent news! ConceptDraw DIAGRAM Block Diagram Software offers the Block Diagrams Solution from the "Diagrams" Area.

What is Entity-Relationship Diagram

What is Entity-Relationship Diagram *
Entity Relationship Diagram (ERD) is an acknowledged method to visualize the logical structure of databases. Using special symbols described in ERD notations you can depict a database of any complexity.
The vector graphic ER diagrams produced when using ConceptDraw ERD solution can be used in whitepapers, presentations, datasheets, posters, or any technical materials.

UML Component Diagram

UML Component Diagram *
UML Component Diagrams are used to illustrate the structure of arbitrarily complex systems and illustrates the service consumer - service provider relationship between components.

SSADM Diagram

SSADM Diagram *
The vector stencils library SSADM from the solution Systems engineering contains specific symbols of SSADM diagrams for ConceptDraw DIAGRAM diagramming and vector drawing software. The Systems engineering solution is contained in Software Development area of ConceptDraw Solution Park.
The example below illustrates the waterfall model used in SSADM. This model involves 5 stages of developing a product such as requirements specification and its' analysis, design, coding and testing.

UML Class Diagram Notation

UML Class Diagram Notation *
When it comes to system construction, a class diagram is the most widely used diagram. UML Class Diagrams is a type of static structure diagram that is used for general conceptual modeling of the systematics of the application. Such a diagram would illustrate the object-oriented view of a system. The object orientation of a system is indicated by a class diagram. It describes the structure of a system by showing the general issues,classes of a system, attributes, operations, interfaces, inheritance, and the relationships between them.

Data Flow Diagram Symbols. DFD Library

Data Flow Diagram Symbols. DFD Library *
Data Flow Diagrams show information transfers and process steps of a system. The general concept is an approach of a depicting how occurs input in a system, further processes and what runs out. The aim of DFD is in accomplishing of understanding between developers and users. Data flow diagrams are maintained with other methods of structured systems analysis.

Pyramid Diagram

Pyramid Diagram *
The Time-Money-Quality Triangle illustrates an advertising truism, that you can't have all three.

Microsoft Azure

Microsoft Azure *
Microsoft Azure is widely used cloud platform which was created by Microsoft and now is managed by Microsoft datacenters in 19 regions of the world, and has a wide set of benefits and features.
ConceptDraw DIAGRAM diagramming and vector drawing software extended with Azure Architecture Solution from the Computer and Networks area of ConceptDraw Solution Park is the best for designing various pictorial infographics, illustrations and materials showing the possibilities and work of Microsoft Azure Cloud System and Azure services.

UML Deployment Diagram. Design Elements

UML Deployment Diagram. Design Elements *
UML Deployment diagram describes the hardware used in system implementations and the execution environments and artifacts deployed on the hardware.
ConceptDraw has 393 vector stencils in the 13 libraries that helps you to start using software for designing your own UML Diagrams. You can use the appropriate stencils of UML notation from UML Deployment library.

UML Diagram Types List

UML Diagram Types List *
Two types of diagrams are used in UML: Structure Diagrams and Behavior Diagrams. Behavior Diagrams represent the processes proceeding in a modeled environment. Structure Diagrams represent the elements that compose the system.

UML Diagram of Parking

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.

ORM Diagram

ORM Diagram *
The vector stencils library ORM Diagrams from the solution Software Development contains specific ORM symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Software Development solution is contained in the ConceptDraw Solution Park.

family tree, genealogy, genogram Genogram

family tree, genealogy, genogram
Genogram solution including professionally designed genogram samples and a wide range of high-quality vector design elements of genogram symbols, medical genogram symbols, emotional relationships and family relationships, makes the ConceptDraw DIAGRAM software the best for drawing the informative Genograms, genealogy schematics and illustrations, and family tree of any depth, and for any quantity of generations. It perfectly suits for the medical specialists of different profiles, medical consultants, therapists, genetics, psychologists, and other medical professionals, each individual and couple.

Data Flow Diagram Software

Data Flow Diagram Software *
When studying a business process or system that involves the transfer of data, it is common to use a data flow diagram (DFD) to visualize how that data is processed. While initially used exclusively in regards to the flow of data through a computer system, DFDs are now employed as a business modelling tool, describing business events and interactions, or physical systems involving data storage and transfer.
ConceptDraw DIAGRAM is a powerful Data Flow Diagram Software thanks to the Data Flow Diagrams solution from the Software Development area of ConceptDraw Solution Park.
You can use the predesigned DFD vector objects that are grouped in 3 libraries of Data Flow Diagrams solution: Data Flow Diagrams Library; Gane-Sarson Notation Library; Yourdon and Coad Notation Library.

UML Deployment Diagram

UML Deployment Diagram *
UML Deployment Diagram depicts the physical deployment of artifacts on nodes (nodes are the existing hardware components, artifacts are the software components running on each node); and how the different pieces are connected.
Use ConceptDraw DIAGRAM with UML deployment diagram templates, samples and stencil library from Rapid UML solution to model the physical deployment of artifacts on nodes of your software system.

Financial Trade UML Use Case Diagram Example

Financial Trade <br>UML Use Case Diagram Example *
This sample represents the actors, use cases and dependencies between them, and also the relationships between use cases. There are used dependency and use case generalization associations on this UML diagram. Use case generalization is used when you have two similar use cases, but one of them does more than another.
This sample shows the work of the Financial Trade sphere and can be used by trading companies, commercial organizations, traders, different exchanges.