Data Modeling Diagram
An abstract model that organizes some elements of data, standardizing the way they relate to one another as well as to properties of the real world entities, is called a “data model”. Such data model may specify that the data element representing a house can be composed of a number of other elements which, in turn, represent the color and size of this house as well as define its owner.
The term “data model” can be used in two senses. Time to time it refers to an abstract formalization of some objects or relationships, found in a particular application domain. These objects can be products, customers or orders found in some organization. Also it can refer to a set of concepts, which are used for defining the formalizations, such as attributes, entities, tables or relations. Thus, the data model of a banking application may be defined in a way of using the entity-relationship data model.
A data model identifies the structure of the data itself in detail. The data models can be specified in a so-called “data modeling notation”, which is often represented graphically. Such data model can sometimes be referred to as a “data structure”, especially in the context of the languages used in programming. Data models can be complemented by so-called “function models”, usually in the context of the so-called “enterprise models”. In order to simplify managing large quantities of structured as well as unstructured data, the information systems take place as it is their primary function.
Data models can describe the manipulation, the integrity aspects and the structure of some data stored in data management systems, e.g. “relational databases”. Such models typically do not describe any unstructured data, such as email messages, digital audio, pictures, word processing documents, video, etc. The main purpose of having the data models is to support the information systems development in a way of providing the definition as well as the format of some data. The problem is that interfaces and systems can cost more than they should in order to operate them, to build and to maintain. These systems may also constrain the business rather than to support it and a major cause is that the quality of the data models implemented in interfaces and systems is poor.
There are a few facts about the data models, which are known to be arbitrarily different for different systems, resulting to the complex interfaces being required between systems that share data. These interfaces can account for from 25% to 70% of the cost of the current systems. Usually the data simply cannot be shared electronically both with suppliers and customers for a reason of the structure and the meaning of data has not been standardized. As an example: the engineering design data and the engineering drawings for a process plant can still be sometimes exchanged on paper.
There are business rules, which can be often fixed in the structure of a data model, mentioning the specification of how these things are done in a particular place. The meaning of it is that the small changes in the way business is conducted can lead to the larger changes in the interfaces and the computer systems. The problem is that the entity types are often whether not identified or identified incorrectly, which can lead to the replication of the data itself or its structure, or its functionality, together with the attendant costs of that duplication in maintenance and development.
The reason for such problems occurring is a lack of the standards that can ensure that the data models can both be consistent and that they can meet all of the business needs which are required.
A so-called “data model explicitly” is meant to determine the structure of the data itself. The typical applications of the data models include the design of information systems, the database models and the enabling the exchange of data. The specification of the data models is usually determined in a data modeling language.
A “data model instance” may be one of the following kinds, which are “Physical data model”, “Logical data model” and “Conceptual data model”. The last one describes the semantics of a domain, which is a scope of the model. A conceptual schema is there to specify the kinds of propositions or facts, which can be expressed with a usage of the model. In this sense, it can define the allowed expressions in an artificial “language” using a scope, which is limited by the scope of the model. The “Physical data model”, mentioned above is the one describing the physical means by which data is stored, that is concerned with CPUs, partitions, tablespaces, etc. And the last, the “Logical data model” is the one describing the semantics, represented by a particular data manipulation technology, including the descriptions of columns and tables, XML tags and object oriented classes.
These three perspectives are relatively independent from each other. The storage technology can get changed without affecting either the conceptual or the logical model and the table as well as the column structure can be changed without even affecting the conceptual model. Taking it into consideration, the structures must remain consistent with the other model. The table/column type of displaying may differ from a direct translation of the entity attributes and classes, although it must carry out the objectives of the conceptual entity class structure.
Considering all of the nuances mentioned above you may decide to create your own data modeling diagram using one of the most convenient in use applications – ConceptDraw DIAGRAM This software allows making any needed diagram, including the discussed one, within only a short period of time, having the needed solutions from ConceptDraw STORE as well as from this site. Thus, creating data modeling diagram, you may find the “Rapid UML solution” from the “Software Development area” of ConceptDraw Solution Park on this site very useful. Having the vector stencils library named “Activity diagrams” from this solution can simplify your work of drawing the needed diagram using the ConceptDraw DIAGRAM diagramming and vector drawing software.
Example 1. Data Modeling Diagrams Solutions
Use the Rapid UML solution to draw UML and SysML activity diagrams for your business documents, presentations and websites.

Example 2. Data Modeling SysML Activity Diagram
This example illustrates the usage of SysML activity diagrams for data modeling.
See also samples:
TEN RELATED HOW TO's:
ER Diagram Tool →
Creating of Entity-Relationship Diagrams (ERDs) is a complex process that requires convenient, automated tools. ConceptDraw DIAGRAM diagramming and vector drawing software offers a powerful ER Diagram Tool - the Entity-Relationship Diagram (ERD) Solution from the Software Development Area.
Competitor Analysis →
Competitor analysis is a first and obligatory step in elaboration the proper corporate marketing strategy and creating sustainable competitive advantage. Use powerful opportunities of numerous solutions from ConceptDraw Solution Park for designing illustrative diagrams, charts, matrices which are necessary for effective competitor analysis.
Data Flow Diagram Symbols. DFD Library →
Any information system receives data flows from external sources. In order to visualize them there is a list of data flow diagram symbols that describes how the system components cooperate. If you want to create a data flow diagram, ConceptDraw DIAGRAM Solution Park has DFD Library that contains both Yourdon and Gane-Sarson notations. This figure shows the content of vector libraries, delivered with ConceptDraw solution for data flow diagram (DFD). There are three libraries composed from about 50 vector objects used to make data flow diagrams. They include a complete set of objects utilized by Yourdon-Coad and Gane-Sarson notations - two primary notations that are apply for data flow diagramming. Also, one can discover additional "Data flow diagram (DFD)" library that provides a data flow diagram elements for designing level 1 and context-level data flow diagrams.
UML Diagram Visio →
This sample shows the UML Class Diagram that was created in ConceptDraw DIAGRAM on the Mac and then was opened for editing in MS Visio. Using the 13 libraries of the Rapid UML Solution for ConceptDraw DIAGRAM you can create your own visual vector UML diagrams quick and easy.
UML Use Case Diagram Example - Estate Agency →
UML Diagram Estate Agency. 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 work of the estate agency and is used by the estate agencies, building companies, at the trainings of the estate agencies, for understanding the working processes of the estate agencies.
UML Class Diagram Example - Medical Shop →
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Basic Flowchart Symbols and Meaning →
While creating flowcharts and process flow diagrams, you should use special objects to define different statements, so anyone aware of flowcharts can get your scheme right. There is a short and an extended list of basic flowchart symbols and their meaning. Basic flowchart symbols include terminator objects, rectangles for describing steps of a process, diamonds representing appearing conditions and questions and parallelograms to show incoming data. This diagram gives a general review of the standard symbols that are used when creating flowcharts and process flow diagrams. The practice of using a set of standard flowchart symbols was admitted in order to make flowcharts and other process flow diagrams created by any person properly understandable by other people. The flowchart symbols depict different kinds of actions and phases in a process. The sequence of the actions, and the relationships between them are shown by special lines and arrows. There are a large number of flowchart symbols. Which of them can be used in the particular diagram depends on its type. For instance, some symbols used in data flow diagrams usually are not used in the process flowcharts. Business process system use exactly these flowchart symbols.
UML Component for Bank →
UML Component for Bank - This sample was created in ConceptDraw DIAGRAM diagramming and vector drawing software using the UML Component Diagram library of the Rapid UML Solution from the Software Development area of ConceptDraw Solution Park
Data Model →
A data model is what can determine the structure of data as a whole. Different data models can be specified in any data modeling notation, which can be often graphical in its form. Any data model can sometimes also be referred to as a so-called “data structure”. It can especially happen in the context of the different programming languages. Data models can be also often complemented by the different function models, especially in the context of the enterprise ones.