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Entity Relationship Diagram Software Engineering

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, ER-diagram, database ERD Entity-Relationship Diagram (ERD)

entity-relationship diagram, ER-diagram, database ERD
An Entity-Relationship Diagram (ERD) is a visual presentation of entities and relationships. That type of diagrams is often used in the semi-structured or unstructured data in databases and information systems. At first glance ERD is similar to a flowch
"An ER model is an abstract way of describing a database. In the case of a relational database, which stores data in tables, some of the data in these tables point to data in other tables - for instance, your entry in the database could point to several entries for each of the phone numbers that are yours. The ER model would say that you are an entity, and each phone number is an entity, and the relationship between you and the phone numbers is 'has a phone number'. Diagrams created to design these entities and relationships are called entity–relationship diagrams or ER diagrams.
Using the three schema approach to software engineering, there are three levels of ER models that may be developed. ...
Conceptual data model ... is the highest level ER model in that it contains the least granular detail but establishes the overall scope of what is to be included within the model set.
Logical ER model ... contains more detail than the conceptual ER model. In addition to master data entities, operational and transactional data entities are now defined.
The physical ER model is normally developed to be instantiated as a database. Therefore, each physical ER model must contain enough detail to produce a database and each physical ER model is technology dependent since each database management system is somewhat different.
Physical model ... is normally forward engineered to instantiate the structural metadata into a database management system as relational database objects such as database tables, database indexes such as unique key indexes, and database constraints such as a foreign key constraint or a commonality constraint." [Entity–relationship model. Wikipedia]
This crow's foot entity-relationship diagram (ERD) example "Educational data base" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Entity-Relationship Diagram (ERD) solution from the Software Development area of ConceptDraw Solution Park.
ERD
ERD, entity,
Used Solutions

block diagram, function blocks Block Diagrams

block diagram, function blocks
Block diagrams solution extends ConceptDraw DIAGRAM software with templates, samples and libraries of vector stencils for drawing the block diagrams.

UML Use Case Diagram Example. Registration System

UML Use Case Diagram
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 types of user’s interactions with the system and is used at the registration and working with the database system.

DFD Flowchart Symbols

DFD Flowchart Symbols *
A Data Flow Diagram (DFD) is a graphical technique which allows effectively model and analyze the information processes and systems. The ability to fast and easy create the DFDs is made possible with Data Flow Diagrams solution from the Software Development area of ConceptDraw Solution Park. For designing the Data Flow Diagrams are used simple DFD flowchart symbols which are connected each other by arrows depicting the data flow from one step to another.

Entity Relationship Diagram Examples

Entity Relationship Diagram Examples *
ConceptDraw DIAGRAM diagramming and vector drawing software offers the Entity-Relationship Diagram (ERD) Solution from the Software Development Area for ConceptDraw Solution Park. How many examples contains the Entity-Relationship Diagram (ERD) Solution! All Entity Relationship Diagram examples were designed and saved for ConceptDraw DIAGRAM users. Now they are available from ConceptDraw STORE.

fishbone diagram, Ishikawa diagram, cause and effect analysis Fishbone Diagrams

fishbone diagram, Ishikawa diagram, cause and effect analysis
The Fishbone Diagrams solution extends ConceptDraw DIAGRAM software with the ability to easily draw the Fishbone Diagrams (Ishikawa Diagrams) to clearly see the cause and effect analysis and also problem solving. The vector graphic diagrams produced using this solution can be used in whitepapers, presentations, datasheets, posters, and published technical material.
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

UML Class Diagram Example for Transport System

UML Class Diagram Example for Transport System *
This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Class Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park. This sample shows the transport protocol mappings for SNMP (Simple Network Management Protocol), the classes of the transport system and relationships between them and is used in IP network.

Booch OOD Diagram

Booch OOD Diagram *
The vector stencils library Booch OOD from the solution Software Engineering contains specific symbols of the Booch method such as class symbols, association symbols, aggregation symbols for ConceptDraw DIAGRAM diagramming and vector drawing software. The Software Engineering solution is contained in the Software Development area of ConceptDraw Solution Park.

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.

healthcare workflow diagram, healthcare workflow, healthcare workflow management, workflow analysis healthcare, clinical workflows in healthcare Healthcare Management Workflow Diagrams

healthcare workflow diagram, healthcare workflow, healthcare workflow management, workflow analysis healthcare, clinical workflows in healthcare
Healthcare Management Workflow Diagrams solution contains large set of colorful samples and libraries with predesigned vector pictograms and symbols of health, healthcare equipment, medical instruments, pharmaceutical tools, transport, medication, departments of healthcare organizations, the medical icons of people and human anatomy, as well as the predesigned flowchart objects, connectors and arrows, which make it the best for designing clear and comprehensive Medi?al Workflow Diagrams and Block Diagrams, Healthcare Management Flowcharts and Infographics, Healthcare Workflow Diagram, for depicting the healthcare workflow and clinical workflows in healthcare, for making the workflow analysis healthcare and healthcare workflow management.

Physical Activity Plan

Physical Activity Plan *
The physical activity is one of the key aspects of a healthy lifestyle. It makes a person not only more attractive physically, but also significantly improves his health, positively affects the life's duration, reduces the chances of appearance the serious diseases. This can be a serious sports occupation, but it is not necessary, the moderate physical activity is also very useful and important for everyone. It can be any muscle activity performed during the day, week, month, or year, no matter these are the special physical exercises, dancing, housework, working in the garden, climbing stairs, or just walking. The physical activity has a particular importance for children's health. The exercises and physical activity allow children to prevent development of various chronic diseases and heart illnesses yet at early age, promotes healthy and harmonious child's development, physical, mental and intellectual. The Mind Map designed in ConceptDraw MINDMAP software depicts detailed activity plan, which illustrates the proposal to incorporate more physical activity into a college community.

Software development with ConceptDraw DIAGRAM

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.

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.

fault tree analysis, fishbone diagram, cause and effect diagrams, fault tree analysis software, fault tree analysis example Fault Tree Analysis Diagrams

fault tree analysis, fishbone diagram, cause and effect diagrams, fault tree analysis software, fault tree analysis example
This solution extends ConceptDraw DIAGRAM.5 or later with templates, fault tree analysis example, samples and a library of vector design elements for drawing FTA diagrams (or negative analytical trees), cause and effect diagrams and fault tree diagrams.

deming cycle, plan do study act, pdca cycle Plan-Do-Check-Act (PDCA)

deming cycle, plan do study act, pdca cycle
Plan-Do-Check-Act (PDCA) solution extends the ConceptDraw DIAGRAM software with collection of samples and predesigned vector objects for easy visualization four stages of PDCA cycle, PDSA cycle, or Deming cycle, for illustration effective application of this method to the practical business tasks, for depiction the implementation of changes and solution the problems in business processes. Plan-Do-Check-Act (PDCA) solution helps to design professional-looking and attractive Plan Do Study Act diagrams, PDCA cycle diagrams, PDCA Process diagrams, and to construct the Quality Management Process Models, which all assist to manage efficiently the business processes, to improve quality of work and to reduce significantly the costs.

CORRECTIVE ACTIONS PLANNING. Risk Diagram (PDPC)

CORRECTIVE ACTIONS PLANNING. Risk Diagram (PDPC) *
Risk Diagram (PDPC) - ConceptDraw Office suite is a software for Risks Diagram making. This diagram identifies possible risks in accomplishing corrective actions. With the Risks Diagram, one analyzes each action separately in a tree of all actions and develops a preventive action in response of each potential obstacles or circumstances which may be a risk.
7MP Tools
7MP Tools

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.