23 Facts About Data model

Data model is an abstract model that organizes elements of data and standardizes how they relate to one another and to the properties of real-world entities.

Term data model can refer to two distinct but closely related concepts.

The first generation database system, called Integrated Data model Store, was designed by Charles Bachman at General Electric.

Database model is a specification describing how a database is structured and used.

An entity-relationship model, sometimes referred to as an entity-relationship diagram, could be used to represent an abstract conceptual data model used in software engineering to represent structured data.

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Data model in Geographic information systems is a mathematical construct for representing geographic objects or surfaces as data.

Semantic data model in software engineering is a technique to define the meaning of data within the context of its interrelationships with other data.

Data model architecture is the design of data for use in defining the target state and the subsequent planning needed to hit the target state.

Essential to realizing the target state, Data model architecture describes how data is processed, stored, and utilized in a given system.

Such a data model is sometimes referred to as the physical data model, but in the original ANSI three schema architecture, it is called "logical".

Ideally, this model is derived from the more conceptual data model described above.

Data model structure is a way of storing data in a computer so that it can be used efficiently.

Data model describes the structure of the data within a given domain and, by implication, the underlying structure of that domain itself.

The model describes the organization of the data to some extent irrespective of how data might be represented in a computer system.

Entities represented by a data model can be the tangible entities, but models that include such concrete entity classes tend to change over time.

For example, a data model might include an entity class called "Person", representing all the people who interact with an organization.

Data model instance is created by applying a data model theory.

Data model-flow diagram is a graphical representation of the "flow" of data through an information system.

An Information model is not a type of data model, but more or less an alternative model.

Such an information model is an integration of a model of the facility with the data and documents about the facility.

An information Data model provides formalism to the description of a problem domain without constraining how that description is mapped to an actual implementation in software.

An object Data model in computer science is a collection of objects or classes through which a program can examine and manipulate some specific parts of its world.

In computing the term object Data model has a distinct second meaning of the general properties of objects in a specific computer programming language, technology, notation or methodology that uses them.